22-Mec-A4 Design and Manufacture of Machine Elements: December 2018

Paper format. National Examinations, December 2018 — 16-Mec-A4 Design and Manufacture of Machine Elements. Three hours, open book, any non-communicating calculator. Six questions in two parts: Part A (Q1–Q3, manufacturing processes) and Part B (Q4–Q6, machine-element analysis). The rubric asks for two questions from each part — four questions constitute a complete paper, each worth 25 %. All six are solved here, since the set is intended as a study resource.

Reference texts.

• Kalpakjian, S. & Schmid, S., Manufacturing Engineering and Technology, 8th ed. — Ch. 11–12 (casting processes and design), Ch. 16 (sheet-metal forming), Ch. 30 (fusion welding).
• Groover, M. P., Fundamentals of Modern Manufacturing, 7th ed. — Ch. 10–11 (casting), Sec. 20.5 (stretch forming).
• Budynas, R. & Nisbett, K., Shigley's Mechanical Engineering Design, 11th ed. — Ch. 9 (welding, weld-as-a-line, Tables 9-2 and 9-3).
• Hibbeler, R. C., Engineering Mechanics: Statics, 14th ed. — Ch. 6 (frames and machines), Ch. 8 (dry friction).
• Hibbeler, R. C., Mechanics of Materials, 10th ed. — Sec. 4.6 (thermal stress in statically indeterminate axial members).