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Computer Aided Design and Manufacturing


Computer Aided Design and Manufacturing 2.1 INTRODUCTION 2.2 CONVENTIONAL APPROACH TO DESIGN 2.3 DESCRIPTION OF THE DESIGN PROCESS 1. 3. Problem definition 2. 4. 5. Conceptualization Synthesis Analysis Manufacturing The steps in design 2.3.1 Problem Definition A well-defined problem is the key to a successful design solution. The design process involves many stages requiring careful thinking; the problem definition helps everyone focus on the objectives of the problem and the things that must be accomplished. The problem definition should include the following: (1) (2) (3) A statement of objectives and goals to be achieved A definition of constraints imposed on the design Criteria for evaluating the design 2.3.2 Conceptualization Conceptualization is the process whereby a preliminary design satisfying the problem definition is formulated. This brings into play the engineer’s knowledge, ingenuity, and experience. 2.3.3 Synthesis This is one of the most challenging tasks an engineer faces. At this stage, the information required for the proposed conceptualization is organized and a plan is devised for achieving that design. To achieve a viable synthesis decision, all the elements affecting the design, including product configuration, cost, and labor, must be considered. 2.3.4 Analysis Analysis is concerned with the mathematical or experimental testing of the design to make sure it meets the criteria set forth in the problem definition. The engineer must t

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