Page 31 - 04. Subyek Engineering Materials - Manufacturing, Engineering and Technology SI 6th Edition - Serope Kalpakjian, Stephen Schmid (2009)

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Section 1.2 Product Design and Concurrent Engineering

Definition of product need;

Conceptual design and evaluation;

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Design analysis; codes/standards

Computer-aided
Prototype production' testing
d
CAD
Production drawings;

manufacturing and
Material specification; process and Computer-aided
_g 5 iterations
r>f<><=@SS planning
(CAM and CAPP)

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I Computer-integrated _ _ Q
manufacturing (CIM)
Inspectionand quality assurance

Packaging; marketing and

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FIGURE |.3 (a) Chart showing various steps involved in traditional design and manufacture
of a product. Depending on the complexity of the product and the type of materials used, the
time span between the original concept and the marketing of the product may range from a
few months to several years. (b) Chart showing general product flow in concurrent
engineering, from market analysis to marketing the product. Source: After S. Pugh.

material with a smoother surface finish, or (c) to modify the design of a component
in order to make it easier, faster, and less expensive to manufacture. Note that these
decisions must take place at the material-specification stage (the sixth box from the
top in Fig. I.3a).
Each of the modifications just described will necessitate a repeat of the design
analysis stage (the third box from the top in Fig. I.3a) and the subsequent stages, to