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| Requirements where there can be no compromise. The consequence of not meeting them is product failure. Materials that fall short can be automatically eliminated. |
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| The simplest method for approaching a design and selection problem. It evaluates what has been done in the past, or by a competitor, and either modifies or duplicates the details of that solution. |
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| First stage in design. Concerned with functions that the product must fulfill. Multiply concepts are considered, and it is determined whether it is not practical or is sound and should be developed further. |
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| Cost should not be considered until a material has met the necessary property requirements. Then cost becomes an important part of selection process. Both material and fabrication cost should be considered. |
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| first step in the manufacturing process. This is where you determine in precise detail what to produce, what properties it must possess, the materials, how to make it and its uses. |
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| Second stage in design. a workable design is developed, including a detailed plan for manufacturing. Include dimensions, allowable tolerances, specific materials, and consider appearance, cost, reliability and producibility. |
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| p. 180. Questions to answer that will influence the method of manufacture. Includes: How many components are to be produced? What is desired quality level? Are there any assembly concerns? What are largest and smallest section thickness? |
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| The reliability of supply that the material is in the size, quantity, or shape desired. Whether the material or components are imported, number of sources, and political events may alter availability |
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| process of selecting the proper materials to go through manufacturing processes. Understanding the interrelation between material, properties, processing, and performance. pg 177 |
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| as new technology is developed or market pressures arise, it is not uncommon for new materials to be substituted into an existing design or manufacturing system. Results can include improved quality, reduced cost, ease of manufacturing, simplified assembly, or enhanced performance. |
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| responsibility of designers and manufacturers to employ the every best procedures in selecting and processing materials. Court awards and rising insurance costs have made this imperative today. |
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| Stage where we consider whether the specified materials are compatible with the manufacturing processes and equipment. Can they be processed economically, and are they available in the necessary quantities and quality? pg 177 |
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| Working model that is constructed in the engineering design stage to permit a full evaluation of the product. |
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| able to be recycled. Should be considered when selecting material. Are there going to be any disposal concerns? |
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| defines needs of the product. Shape considerations, property requirements, and manufacturing concerns. note: not sure if this is the exact definition, I could not find this key term in the chapter. |
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| an important area to consider is the interaction of the product with its service environment throughout the entire product lifetime. consideration should be given to shipping, storage, and use! Things to consider include: What is the desired service lifetime for the product? What are the temperature extremes the product will see? What is the anticipated level of inspection and maintenance? |
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