ME 270 Study Guide - Final Guide: Google Scholar, Fastener, The Theoretical Minimum

• School: University of Illinois
• Department: Mechanical Engineering
• Course: ME 270
• Professor: Leon Liebenberg

Document Summary

Practice problems 9 designing for assembly (dfa) Attempt as many problems as possible by yourself, i. e. before looking at the answer / solution. The answers or abbreviated solutions to the problems are shown after each question. Some of the questions might require you to do independent research using an online search engine (e. g. google, or google scholar). Suggest a redesign of this assembly to reduce the number of parts and increase the assembly efficiency. Estimate the manual assembly time and design efficiency of the redesigned assembly. The assembly sequence of the piston assembly is as follows: the base is placed in a fixture, the piston is inserted into the base. Being conservative, the theoretical minimum number of parts is 4. The spring probably needs to be a different material. The piston stop needs to be separate to allow the piston to be assembled, but could be combined with the cover.