Term
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Definition
| Assures that a hole is started accurately. Used prior to a regular chisel-point twist drill. (p593) |
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Definition
| The intersection of the web and the cone produces a straight-line __________. (p588) |
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Definition
| Adjustable over a considerable size range and have radial steel fingers. (p598) |
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Definition
| Provides an enlarged cylindrical hole with a flat bottom so that a bolt head, or a nut, will have a smooth bearing surface that is normal to the axis of the hole. (p606) |
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Definition
| Makes a beveled section at the end of a drilled hole to provide a proper seat for a flat-head screw or rivet. (p606) |
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Definition
| are used when deep holes are to be drilled. (p590) |
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Definition
| Common name for the machine tool used for drilling. Consists of a base, a column, a spindle, and a worktable. (p600) |
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Definition
| Are large proportion of holes are made by this. Most have two cutting edges. (p583) |
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Definition
| spiral or helical groove. (p586) |
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Definition
| Used when several related operations, such as drilling holes of different sizes, reaming, or counterboring, must be done on a single part. (p603) |
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Definition
| Oldest of the deep-hole techniques. A single lipped tool, and its major feature is the delivery of coolant through the tool at extremely high pressures. (p590) |
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Definition
| The principal rake angles behind the cutting edges are formed by the relation of the flute _______ to the work. the rake angle of a drill varies along the cutting edges. (p587) |
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Definition
| Can produce a hole four times faster than a spade drill because they run at high speeds/low feeds and are really more of a boring operation than a drilling process. (p595) |
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Definition
| A specially designed workholder. (p598) |
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Term
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Definition
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Term
| Multiple-Spindle Drilling Machine |
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Definition
| Mass-production machines with as many as 50 spindles driven by a single powerhead and fed simultaneously into the work. (p604) |
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Definition
| Used on large workpieces that cannot easily be handled manually. (p604) |
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Definition
| For use with carious machine tools at slow speeds. The best feed is usually two to three times the drilling feed. (p608) |
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Definition
| Intended to be turned and fed by hand and to remove only a few thousandths of an inch of metal. (p608) |
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Term
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Definition
| Often are used for sizes over 3/4in in order to save cutting-tool-material. The shell is in an arbor made of steel. (p608) |
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Definition
| Widely used for making holes 1 in or larger in diameter at low speeds or with high feeds. (p594) |
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Definition
| Done to provide a smooth bearing area on an otherwise rough surface at the opening of a hole and normal to its axis. (p606) |
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Term
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Definition
| Have a separate set of flutes on a single body for each diameter or operation. Provide better chip flow. (p594) |
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Definition
| At the end of the taper shank that fits loosely in a slot at the end of the tapered hole in the spindle. (p590) |
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Definition
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Definition
| Leaves a solid core. (p591) |
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Definition
| Used when a series of holes of different sizes, or a series of operations (such as center drilling, drilling, reaming, and spot facing), must be done repeatedly in succession. (p603) |
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Definition
Most Common type of drill. (p586)
Have three basic parts: the body, the point, and the shank. |
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Term
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Definition
| The metal column or backbone that forms between the flutes. (p588) |
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Term
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Definition
| The cutter rotation is in the same direction as the feed rate. (p617) |
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Term
| Column-and-Knee Milling Machine |
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Definition
| Most basic milling machines. The column, mounted on the base, is the main supporting frame for all the other parts and contains the spindle with ts driving mechanism. (p623) |
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Term
| Conventional (Up) Drilling |
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Definition
| The cutter rotates against the direction of feed of the workpiece. (p617) |
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Term
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Definition
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Definition
| Produce forms in three dimensions. (p626) |
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Term
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Definition
| A very common operation performed on both vertical and horizontal spindle milling machines or machining centers. (p615) |
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Term
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Definition
like end milling the generated surface is at right angles to the cutter axis. Most of the cutting is done by the peripheral portions of the teeth, with the face portions providing some finishing action. Face milling is done on both horizontal- and vertical-spindle machines (pg. 614)
Have a center hole so that they can be arbor mounted. (p619) |
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Term
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Definition
| (also vises) various wend milling the generated surface is at right orkholding devices (pg. 629) |
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Term
| Insert-Tooth Milling Cutter |
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Definition
| the most larger-sized milling cutters. The cutter body is made of steel, with the teeth of high-speed steel, carbides, or Tin carbides, fastened to the body by various methods (pg. 622). |
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Term
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Definition
| (pg. 611)when equally spaced peripheral teeth intermittently engage and machine the workpiece |
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Term
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Definition
| (pg. 512)numerical control centers that have automatic tool-change capability and are usually capable of milling, drilling, boring, reaming,tapping and other minor machining processes |
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Term
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Definition
| pg. 480)the process of removing unwanted metal material from a workpiece in the form of chips |
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Term
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Definition
| (Pg 623): a power-driven machine used for the complex shaping of metal (or possibly other materials) parts. Its basic form is that of a rotating cutter or bit which rotates concentric to the spindle axis (like a drill), and a worktable that can move in three dimensions relative to the workpiece |
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Term
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Definition
| (Pg 611): the cutting tool used in milling |
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Term
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Definition
| A basic machining process by which a surface is generated by progressive chip removal. (p611) |
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Term
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Definition
| The surface is generated by teeth located on the periphery of the cutter body. (p611) |
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Term
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Definition
| Milling machines that can duplicate external or internal geometries in two dimensions. (p625) |
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Term
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Definition
| Moves transversely on ways on hte knee. (p623) |
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Term
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Definition
| Usually performed on horizontal spindle milling machines. The tool rotates at some rpm while the work feeds past the tool at a table feed rate in inches per minute. (p611) |
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Term
| Staggered-Tooth Milling Cutter |
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Definition
| Narrow cylindrical cutters having staggered teeth, and with alternate teeth having opposite helix angles. (p620) |
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Term
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Definition
| Two or more side milling cutters often are spaced on an arbor to straddle the workpiece. (p620) |
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Term
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Definition
| Made for the single purpose of milling the semi-cylindrical seats required in shafts for Keys. (p623) |
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Term
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Definition
| (pg. 652) provide continuous cutting action most is done on contour bandsawing machines by means of a special band file that is substituted for the usual bandsaw blade |
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Term
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Definition
*These were first made for use of wood cutting
-(645,646)- one of the basic configurations it’s thesecond sufficiently flexible so that long length can be formed into a continuous band with teeth on one edge |
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Term
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Definition
| The process of broaching is one of the most productive of the basic machining processes.The machine tool is called a broaching machine or a broach and the cutting tool is also called the broach. Pg 637 |
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Term
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Definition
| *The process of ______ is one of the most productive of the basic machining processes. |
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Term
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Definition
| On some round broaches, burnishing teeth are provided for finishing. Pg 642 |
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Term
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Definition
*_____ are also called cold saws to distinguish them from friction type saws
or disk, necessarily differs somewhat from straight blade forms. Because they must be relatively large in comparison with the work, only the sizes up to about 18in. in diameter have teeth that are cut into the disk. Pg 647 |
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Term
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Definition
| circular saws for cutting metal; cut rapidly and produces chips like a milling cutter while producing surfaces that are comparable in smoothness and accuracy with surfaces made by slitting saws in a milling machine or by a cutoff tool in a lathe. Pg 647 |
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Term
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Definition
| chips are removed by cutting teeth that are arranged in succession along the same plane on the surface of a tool, called a file. Pg 651 |
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Term
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Definition
| a straight relatively, rigid saw blade of limited length with teeth on one edge. Page 645,647 |
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Term
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Definition
| or chips that cannot drop from the gullet (the space formed by the tooth space) until they emerge from the slot cut in the workpiece. Page 646Richard planning-push broach |
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Term
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Definition
| Can be used to produce horizontal, vertical, or inclined flat surfaces on large workpieces(too large for shapers) |
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Term
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Definition
| the broach is pulled through the part. Broach is transferred from the left fixture to the right fixture. (p638) |
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Term
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Definition
| Must be strong enough so that it will not buckle. (p640) |
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Term
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Definition
| 648 – One of the two main classifications for metal sawing machines. It includes the manual hacksaw and power hacksaw |
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Term
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Definition
| 638 – the feed per tooth in broaching is the change in height of successive teeth. This is called the rise per tooth or RPT. |
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Term
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Definition
*______ is a machining process in which chips are produced by a succession of small cutting teeth
645 – Sawing is a basic machine process in which chips are produced by a succession of small cutting edges, or teeth, arranged in a narrow line on a saw “blade.” |
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Term
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Definition
| (632) – has largely been replaced by milling and broaching, as a production process. In shaping, the workpiece is fed at right angles to the cutting motion between successive strokes of the tool. |
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Term
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Definition
| (638)- a broach finishes an entire surface in a single pass. In surface broaching, the tool is translated past the surface with a single stroke of velocity |
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Term
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Definition
| (646)- refers to the manner in which the teeth are offset from the centerline in order to make the kerf wider than the gage (the thickness of the back) of the blade |
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