Term
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Definition
| The exact location of a specific point in terms of X, Y, and Z from the fixed point of origin. |
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Term
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Definition
| Any synthetic product that is used to join materials together. |
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Term
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Definition
| 1. A plastic joining technique in which a third substance bonds a plastic to another plastic or material such as metal, rubber, ceramic, glass, or wood. 2. The process of fastening parts of metal products together permanently with non-metallic materials. |
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Term
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Definition
| 1. Concerned with beauty or the appreciation of beauty. 2. Of pleasing appearance. |
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Term
| American National Standards Institute (ANSI) |
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Definition
| 1. A private, non-profit organization that coordinates the development and use of voluntary consensus standards in the United States. 2. The acronym for the America National Standards Institute. |
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Term
| American Society of Mechanical Engineers (ASME) |
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Definition
| 1. A professional engineering organization that is known for setting codes and standards for mechanical devices in the United States. ASME drawing standards are found in the Y-14M publications. 2. The acronym for the American Society of Mechanical Engineers. |
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Term
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Definition
| To add explanatory notes to. |
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Term
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Definition
| A section of additional information at the end of a document. |
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Term
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Definition
| The hearing and determination of a dispute or the settling of differences between parties by a person or persons chosen or agreed to by them. |
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Term
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Definition
| To clearly express an idea or feeling. |
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Term
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Definition
| A group of machine or handmade parts that fit together to form a self-contained unit. |
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Term
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Definition
| A drawing that shows the various parts of an item when assembled. |
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Term
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Definition
| An evaluation technique for technology that requires analyzing benefits and risks, understanding the trade-offs, and then determining the best action to take in order to ensure that the desired positive outcomes outweigh the negative consequences. |
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Term
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Definition
| An orthographic view of an object using a direction of sight other than one of the six basic views (front, top, right-side, rear, bottom, left-side); used to show a surface that is not parallel to any of the principal view planes. |
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Term
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Definition
| System of dimensioning in which all dimensions are placed from a datum and not from feature to feature. Also referred to as Datum Dimensioning. |
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Term
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Definition
| : A tolerance in which variation is permitted in both directions from the specified dimension. |
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Term
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Definition
| A hole that does not go completely through the workpiece. |
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Term
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Definition
| A group technique for solving problems, generating ideas, stimulating creative thinking, etc. by unrestrained spontaneous participation in discussion. |
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Term
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Definition
| 1. Concise and exact use of words. 2. Shortness of time. |
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Term
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Definition
| A section of an object broken away to reveal an interior feature for a sectional drawing. |
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Term
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Definition
| Something produced in the making of something else; a secondary result; a side effect. |
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Term
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Definition
| A form of oblique drawing in which the receding lines are drawn at half scale, and usually at a 45 degree angle from horizontal. |
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Term
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Definition
| A substance capable of causing cancer. |
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Term
| Cartesian Coordinate System |
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Definition
| A rectangular coordinate system created by three mutually perpendicular coordinate axes, commonly labeled X, Y, and Z |
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Term
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Definition
| A form of oblique drawing in which the receding lines are drawn true size, and usually at a 45 degree angle from horizontal |
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Term
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Definition
| A small angled surface formed between two surfaces. |
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Term
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Definition
| 1. A triangle located round a polygon such as a circle. 2 To draw a figure around another, touching it at points but not cutting it. |
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Term
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Definition
| A group of values that is used to analyze the distribution of data. |
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Term
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Definition
| The total gap between two mating parts, such as the difference in diameters between a cylindrical shaft and a hole. |
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Term
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Definition
| A part or element of a larger whole |
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Term
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Definition
| A mechanism that consists of two or more simple machines. |
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Term
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Definition
| A force that pushes on or squeezes a material. |
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Term
| Computer-Aided Design or Computer-Aided Drafting (CAD): |
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Definition
| 1. For design, the use of a computer to assist in the process of designing a part, circuit, building, etc. 2. For drafting, the use of a computer to assist in the process of creating, storing, retrieving, modifying, plotting, and communicating a technical drawing. |
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Term
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Definition
| 1. A limit to a design process. Constraints may be such things as appearance, funding, space, materials, and human capabilities. 2. A limitation or restriction. |
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Term
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Definition
| A cylindrical recess around a hole, usually to receive a bolt head or nut. |
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Term
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Definition
| A conical-shaped recess around a hole, often used to receive a tapered screw. |
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Term
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Definition
| Able to be believed; convincing |
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Term
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Definition
| Principles or standards by which something may be judged or decided. |
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Term
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Definition
| A detailed analysis and assessment. |
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Term
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Definition
| An individual value or bit of information. |
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Term
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Definition
| A group of individual values or bits of information that are related in some way or have some common characteristic or attribute. |
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Term
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Definition
| A theoretically exact point, axis, or plane derived from the true geometric counterpart of a specific datum feature. The origin from which the location, or geometric characteristic of a part feature, is established. |
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Term
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Definition
| : A dimensioning system where each dimension originates from a common surface, plane, or axis. Also known as baseline dimensioning. |
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Term
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Definition
| A tool for systematically ranking alternatives according to a set of criteria. |
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Term
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Definition
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Term
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Definition
| A written summary that provides an overview of the purpose and contents of a report, but offers no major facts. |
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Term
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Definition
| An iterative decision-making process that produces plans by which resources are converted into products or systems that meet human needs and wants or solve problems. 2. A plan or drawing produced to show the look and function or workings of something before it is built or made. 3. A decorative pattern. |
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Term
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Definition
| A written plan that identifies a problem to be solved, its criteria, and its constraints. The design brief is used to encourage thinking of all aspects of a problem before attempting a solution. |
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Term
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Definition
| A systematic problem-solving strategy, with criteria and constraints, used to develop many possible solutions to solve a problem or satisfy human needs and wants and to winnow (narrow) down the possible solutions to one final choice. |
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Term
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Definition
| A part of design brief that challenges the designer, describes what a design solution should do without describing how to solve the problem, and identifies the degree to which the solution must be executed. |
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Term
| A part of design brief that challenges the designer, describes what a design solution should do without describing how to solve the problem, and identifies the degree to which the solution must be executed. |
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Definition
| A dimensioned, working drawing of a single part. Also referred to as part drawing. |
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Term
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Definition
| Where alternate units are displayed within the same dimension (both metric and standard dimensions can shown at the same time). |
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Term
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Definition
| A basic constituent part. |
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Term
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Definition
| Also referred to as an Engineer’s Logbook, a Design Notebook, or Designer’s Notebook 1. A record of design ideas generated in the course of an engineer’s employment that others may not claim as their own. 2. An archival record of new ideas and engineering research achievements. |
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Term
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Definition
Also referred to as the U.S. Customary system.
The measuring system based on the foot, second, and pound as units of length, time, and weight or mass. |
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Term
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Definition
| The study of workplace equipment design or how to arrange and design devices, machines, or workspace so that people and things interact safely and most efficiently. |
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Term
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Definition
| To form an idea of the amount or value of; assess. |
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Term
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Definition
| A persuasive summary that provides an overview of the purpose and contents of a report, identifies the issue or need that led to the report, and includes condensed conclusions and recommendations. |
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Term
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Definition
| 1. The property of an object by which it occupies space. 2. A set that includes a given and similar set as a subset. |
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Term
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Definition
| A hardware device that mechanically joins or affixes two or more objects together. |
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Term
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Definition
| Energy transmitted and controlled by means of a pressurized fluid, either liquid or gas. The term fluid power applies to both hydraulics and pneumatics. |
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Term
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Definition
| A unit of linear measure equal to 12 inches or 30.48 cm. |
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Term
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Definition
| To show lines or objects shorter than their true size. Foreshortened lines are not perpendicular to the line of sight. |
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Term
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Definition
| A sectional drawing based on a cutting plane line that extends completely through an object. |
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Term
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Definition
| The kind of action or activity proper to a person, thing, or institution; the purpose for which something is designed or exists; role. |
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Term
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Definition
| A time and activity bar chart that is used for planning, managing, and controlling major programs that have a distinct beginning and end. |
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Term
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Definition
| Constant, non-numerical relationships between the parts of a geometric figure. Examples include parallelism, perpendicularity, and concentricity. |
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Term
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Definition
| The principle that maintains that the human eye sees objects in their entirety before perceiving their individual parts. |
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Term
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Definition
| A sectional drawing based on a cutting plane line that cuts through one-quarter of an object. A half section reveals half of the interior and half of the exterior. |
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Term
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Definition
| A graph of vertical bars representing the frequency distribution of a set of data. |
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Term
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Definition
| A type of fluid power that uses pressurized liquid, for example, oil or water. |
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Term
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Definition
| An improvement of an existing technological product, system, or method of doing something. |
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Term
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Definition
| To draw a figure within another so that their boundaries touch but do not intersect. |
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Term
| International Organization for Standardization (ISO) |
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Definition
| A non-governmental global organization whose principal activity is the development of technical standards through consensus. |
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Term
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Definition
| The amount of overlap that one part has with another when assembled. |
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Term
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Definition
| The rise and fall of the voice in speaking. |
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Term
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Definition
| A form of pictorial drawing in which all three drawing axes form equal angles of 120 degrees with the plane of projection. |
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Term
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Definition
| Describing a procedure or process that repeatedly executes a series of operations until some condition is satisfied. An iterative procedure may be implemented by a loop in a routine. |
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Term
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Definition
| The process of connecting or joining two pieces of wood together through the use of various forms of wood joints. In fine woodworking, common forms of joinery include dovetail joinery, mortise-and-tenon joinery, biscuit joinery, lap joints, spline joints, etc. |
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Term
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Definition
| A rectangular or semicircular shape used to prevent parts, such as gears or wheels, from turning on a shaft. |
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Term
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Definition
| A slot in a shaft to receive a key. |
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Term
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Definition
| A slot in a hub or material around a shaft that receives a key. |
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Term
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Definition
| A low area of land that is built up from deposits of solid refuse in layers covered by soil. |
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Term
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Definition
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Term
| Least Material Condition (LMC) |
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Definition
| The smallest size limit of an external feature and the largest size limit of an internal feature. |
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Term
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Definition
| How recognizable a short amount of text is. |
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Term
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Definition
| The largest and smallest possible boundaries to which a feature may be made as related to the tolerance of the dimension. |
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Term
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Definition
| Standardization of lines used on technical drawings by line weight and style. |
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Term
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Definition
| Also called line width. The thickness of a line, characterized as thick or thin. |
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Term
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Definition
| Connected to specific features on the views of the drawing. Also known as annotations. |
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Term
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Definition
| A location dimension that defines the relationship of features of an object. |
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Term
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Definition
| The seam of a carton where the two edges of the box blank are joined together by stitching, gluing, or taping. |
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Term
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Definition
| The transformation of raw material into finished goods through one or more of the following: Casting and Molding, Shaping and Reshaping for forming, Shearing, Pulverizing, Machining, for material removal, or Joining by transforming using heat or chemical reaction to bond materials. |
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Term
| Maximum Material Condition (MMC): |
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Definition
| The largest size limit of an external feature and the smallest size limit of an internal feature. |
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Term
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Definition
| A hardware device, such as a bolt or screw, that is used to mechanically join or affix two or more plastic objects together. |
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Term
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Definition
| An assembly of moving parts completing a complete functional motion. |
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Term
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Definition
| The act or process of using an intermediary to effect an agreement or reconciliation. |
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Term
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Definition
| The process of deciding what information needs to go into the graphic design, as well as how to effectively use the design elements and principles to present the information. This analysis is based on a thorough analysis of the audience. |
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Term
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Definition
| The fundamental unit of length in the metric system, equal to 100 centimeters or approximately 39.37 inches. |
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Term
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Definition
| The decimal measuring system based on the meter, liter, and gram as units of length, capacity, and weight or mass. |
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Term
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Definition
| A metric unit of linear measure equal to 1/1000 of a meter. |
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Term
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Definition
| Also referred to as an Appearance Model. A model or replica of a machine or structure for instructional or experimental purposes. |
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Term
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Definition
| A visual, mathematical, or three-dimensional representation in detail of an object or design, often smaller than the original. A model is often used to test ideas, make changes to a design, and to learn more about what would happen to a similar, real object. |
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Term
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Definition
| Views of an object projected onto two or more orthographic planes. |
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Term
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Definition
| A resource or raw material that cannot be grown or replaced once used. |
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Term
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Definition
| A function that represents the distribution of variables as a symmetrical bell-shaped graph. |
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Term
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Definition
| Principles of right action, binding upon the members of a group and serving to guide, control, or regulate proper and acceptable behavior. |
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Term
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Definition
| A number value, or algebraic equation that is used to control the size or location of a geometric figure. |
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Term
| Occupation Safety and Health Administration (OSHA) |
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Definition
| A government organization whose mission is to assure the safety and health of America's workers by setting and enforcing standards; providing training, outreach, and education; establishing partnerships; and encouraging continual improvement in workplace safety and health. |
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Term
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Definition
| ¬Not having fixed limits; unrestricted; broad. |
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Term
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Definition
| A quantity which is fixed for the case in question but may vary in other cases. |
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Term
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Definition
| A CAD modeling method that uses parameters to define the size and geometry of features and to create relationships between features. Changing a parameter value updates all related features of the model at once. |
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Term
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Definition
| A kind of action which occurs as two or more objects have an effect upon one another. |
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Term
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Definition
| A form of pictorial drawing in which vanishing points are used to provide the depth and distortion that is seen with the human eye. Perspective drawings can be drawn using one, two, and three vanishing points. |
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Term
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Definition
| A line used to show the alternate positions of an object or matching part without interfering with the main drawing. |
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Term
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Definition
| A type of fluid power that uses compressed air or other neutral gases. |
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Term
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Definition
| A location in space. No dimensions. |
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Term
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Definition
| The location of a point as given by an angle and a distance. |
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Term
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Definition
| A set of pieces of creative work intended to demonstrate a person’s ability. |
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Term
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Definition
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Term
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Definition
| The method of formation, operation, or procedure exhibited in a given instance. |
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Term
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Definition
| A solid geometric figure whose two ends are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms. |
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Term
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Definition
| 1. Human activities used to create, invent, design, transform, produce, control, maintain, and use products or systems; 2. A systematic sequence of actions that combines resources to produce an output. |
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Term
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Definition
| A tangible artifact produced by means of either human or mechanical work, or by biological or chemical process. |
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Term
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Definition
| Stages a product goes through from concept and use to eventual withdrawal from the market place. |
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Term
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Definition
| An outline of something as seen from one side. |
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Term
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Definition
| A horizontal or vertical line that can be used to locate entities in an adjacent view. |
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Term
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Definition
| The accepted code of behavior in a particular situation. |
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Term
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Definition
| Symmetry about a central axis. |
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Term
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Definition
| A dimension, usually without a tolerance, used for information purposes only. A reference is a repeat of a given dimension or established from other values shown on a drawing. Reference dimensions are enclosed in ( ) on the drawing. |
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Term
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Definition
| To renovate or redecorate. |
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Term
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Definition
| Matter thrown away as worthless. |
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Term
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Definition
| The location of a point as given by the distance from the last point specified. |
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Term
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Definition
| A small amount of something that remains after the main part has gone or been taken or used. |
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Term
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Definition
| The process of taking something apart and analyzing its workings in detail, usually with the intention to understand function, prepare documentation, electronic data, or construct a new or improved device or program, without actually copying from the original. |
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Term
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Definition
| A brief listing of revisions made to a drawing since it was initially released to manufacture. |
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Term
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Definition
| Creating a 3D solid or surface by revolving a 2D shape about an axis. |
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Term
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Definition
| A relatively thin flat member acting as a brace support. Also called a web. |
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Term
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Definition
| 1. A straight-edged strip of rigid material marked at regular intervals and used to measure distances. 2. A proportion between two sets of dimensions used in developing accurate, larger or smaller prototypes, or models of design ideas. |
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Term
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Definition
| Making an impression or crease in a box blank to facilitate bending, folding, or tearing. |
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Term
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Definition
| A molded-in piece in a plastic assembly that is designed to form a mechanical joint system where part-to-part attachment is accomplished with locating and locking features to connect components together. |
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Term
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Definition
| 1. The dimensions of height, depth, and width within which all things exist and move. 2. A free or unoccupied area or expanse. |
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Term
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Definition
| A shallow recess like a counterbore, used to provide a good bearing surface for a fastener. |
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Term
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Definition
| Something considered by an authority or by general consent as a basis of comparison. |
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Term
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Definition
| Collection of methods for planning experiments, obtaining data, organizing, summarizing, presenting, analyzing, interpreting, and drawing conclusions based on data. |
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Term
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Definition
| A phase of team development that is marked by conflict. |
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Term
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Definition
| The pressure or tension exerted on a material object. |
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Term
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Definition
| When the unit or team becomes stronger than the sum of the individual members. |
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Term
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Definition
| A group of interacting, interrelated, or interdependent elements or parts that function together as a whole to accomplish a goal. |
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Term
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Definition
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Term
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Definition
| Gradual diminution of width or thickness in an elongated object. |
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Term
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Definition
| The process of taking apart a product to better understand it. |
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Term
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Definition
| A document that conveys the results of scientific and technical research, and provides recommendations for action. |
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Term
| Technical Working Drawing |
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Definition
| A drawing that is used to show the material, size, and shape of a product for manufacturing purposes. |
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Term
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Definition
| A force that pulls on a material. |
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Term
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Definition
| A table located in the bottom right-hand corner of an engineering drawing that identifies, in an organized way, all of the necessary information that is not given on the drawing itself. Also referred to as a title strip. |
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Term
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Definition
| The total permissible variation in a size or location dimension. |
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Term
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Definition
| have limits of size indicating that either a clearance or an interference may result when mating parts are assembled. |
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Term
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Definition
| A dimensioning system which requires all numerals, figures, and notes to be lettered horizontally and be read from the bottom of the drawing sheet. |
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Term
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Definition
| A tolerance in which variation is permitted in only one direction from the specified dimension. |
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Term
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Definition
| A standard quantity in terms of which other quantities may be expressed. |
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Term
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Definition
| A vanishing point is a point in space, usually located on the horizon, where parallel edges of an object appear to converge. |
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Term
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Definition
| A group of people that rely primarily or exclusively on electronic forms of communication to work together in accomplishing goals. |
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Term
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Definition
| Drawings that convey all of the information needed to manufacture and assemble a design. |
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Term
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Definition
| A system of numbers along the top and bottom margins, and letters along the left and right margins of a drawing sheet that allows the viewer to identify drawing features within a specific location or zone on the drawing. |
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