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The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title: Design for assembly : re-design of an electrical switch for the ease of automatic assembly
Author: Pannala, Achyuta Reddy
View Online: njit-etd1991-021
([v], 69 pages ~ 3.9 MB pdf)
Department: Manufacturing Engineering Division
Degree: Master of Science
Program: Manufacturing Engineering
Document Type: Thesis
Advisory Committee: Levy, Nouri (Committee chair)
Sodhi, R. S. (Committee member)
Kotefski, Steve (Committee member)
Date: 1991
Keywords: Electric switchgear--Design
Production engineering
Manufacturing processes
Availability: Unrestricted
Abstract:

A design for assembly (DFA) method is used to analyze the existing design of parts of an electrical switch, and to reduce and re-design them, for the ease of automatic assembly. The procedure for the selection of suitable and economical assembly method is presented based on the Boothroyd & Dewhurst methods. Analysis of the initial design for manual assembly and the re-design for automatic assembly are presented. An algorithmic approach for simplified generation of all mechanical assembly sequences and selecting the good assembly sequences is presented with graphical representations. A work station needed for the automatic assembly is developed, which incorporates vibratory bowl feeders, an indexing machine and other equipment.


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