L11-mfgintro - Introduction to manufacturing processes...

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Unformatted text preview: Introduction to manufacturing processes VM250, Design and Manufacturing I 1 Primary material source: A. John Hart Includes material from D. Dutta and K. Saitou Today’s readings Introduction to manufacturing and materials selection from Kalpakjian and Schmid Design Needs Material selection Process selection Function Design, materials selection, and process selection are coupled Topics of VM250 Part 2 What things are made of (materials) Properties and service attributes Testing Selection (Cambridge Engineering Selector, CES) Ways of making things (manufacturing) Milling, turning, drilling, casting/molding, stamping/forging Operation, mechanics, capabilities, limitations of each Rapid prototyping/advanced manufacturing: waterjet, electro ‐ discharge (EDM), 3D printing, stereolithography, precision machining, etc. Joining and assembly How to get things made (process planning) Bill of materials Process selection Cost estimation: low ‐ volume and high ‐ volume Materials Shape transformation Assembly Engineering materials Kalpakjian and Schmid. Property map: specific stiffness vs. specific strength Beukers and Von Hinte, Lightness: The inevitable renaissance of minimum energy structures. From natural materials to engineered materials Casting Kalpakjian and Schmid. Forming Kalpakjian and Schmid. Machining Kalpakjian and Schmid. Finishing and Joining Kalpakjian and Schmid. Different processes can sometimes achieve the same part functionality Kalpakjian and Schmid. From large ‐ to small ‐ scales Airbus A380 http://en.wikipedia.org/wiki/Airbus_A380 ; Kalpakjian and Schmid. Shape drives process selection Kalpakjian and Schmid. (continued) Learning Objectives – VM250 Part 2 Understand the properties and performance/service capabilities of materials Metals, polymers, ceramics, composites Know (qualitatively and quantitatively) the basic properties of common materials Be able to identify required attributes for a part and select a material Learning Objectives – VM250 Part 2...
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L11-mfgintro - Introduction to manufacturing processes...

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