To Injection Mold, to Stamp, or to Assemble? A DFM Cost Perspective

[+] Author and Article Information
W. Hu

Research and Development Department, Parametric Technology Corporation, Waltham, Massachusetts 02154

C. Poli

Department of Mechanical and Industrial Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003

J. Mech. Des 121(4), 461-471 (Dec 01, 1999) (11 pages) doi:10.1115/1.2829484 History: Received December 01, 1997; Revised August 01, 1999; Online December 11, 2007


This paper presents a DFM cost comparison of injection molding and stamping, the processes most commonly used in the production of consumer oriented special purpose components. The general guidelines obtained and conclusions drawn in order to determine if a component should be injection molded or stamped, and/or if several components should be combined into a single component or not, are discussed. The cost evaluation and comparison are primarily in terms of the functional equivalence of feature, component, and assembly.

Copyright © 1999 by The American Society of Mechanical Engineers
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