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Injection Molding Handbook
Paul Gramann, Tim A. Osswald and
Tom Turng. Marcel Dekker, Inc.: New York, 1994. ISBN#
0-8247-8964-4.
This book, edited by the Wisconsin based team of Osswald,
Turng and Gramman, represents a compilation of work by
several well known authors and brings together a body
of knowledge that will be appreciated by injection molding
professionals and students of plastics processing.
The book does well to cover all the important aspects
of this complex materials processing technology and goes
into as much detail as needed to provide the reader with
a clear understanding of the underlying science without
resorting to complicated mathematical analysis.
Osswald’s coverage of injection molding materials
and processing pays particular attention to the relationship
between molecular weight and resulting material behavior.
Of particular interest is the section on anisotropy development
during processing, which gives the reader critical insight
into residual stress development and warpage.
Chris Rauwendaal brings his enormous experience in screw
behavior to help the reader understand this important
but often neglected aspect of the injection molding process.
Details include mechanisms of mixing in the screw and
nozzle design.
Bob Farrell’s treatment of the molding machine is
complete, with extensive
treatment of clamp design including design calculations
and a special discussion on tie-rod design.
John Beaumont’s chapter on mold design and part
design provides guidelines and insight to aid the practitioner
in this art.
This sets the stage for Turng’s examination of derivative
molding processes such as gas-assisted injection, microcellular
injection molding, multi-material molding and powder injection
molding processes—less well understood, complex
processes that are nonetheless important because of their
extensive use in modern molding operations. The book also
provides practical guidelines for trouble-shooting processing
and material problems.
- Reviewed by Hubert Lobo. Hubert Lobo is President
of DatapointLabs, and a former CIMP member. Lih-Sheng
(Tom) Turng was a student of Prof. K.K. Wang and also
a member of CIMP. He is now an Associate Professor at
the University of Wisconsin-Madison. |
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