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ASM Handbook

Metalworking: Bulk Forming

Edited by
S.L. Semiatin
S.L. Semiatin
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ASM International
Volume
14A
ISBN electronic:
978-1-62708-185-6
Publication date:
2005
Book Chapter

Rotary Swaging of Bars and Tubes

By
Brian Fluth
Brian Fluth
Revising author
Diversico Industries
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Donald Hack
Donald Hack
Revising author
Jerl Machine, Inc.
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Albert L. Hoffmanner
Albert L. Hoffmanner
Revising author
Manufacturing Technologies
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Richard Kell
Richard Kell
Revising author
Torrington Swager and Vaill End Forming Machinery Inc.
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Walter Perun
Walter Perun
Revising author
Fenn Manufacturing Company
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Published:
2005
Page range:
156 - 171
Publication history
March 21, 2006

Abstract

Rotary swaging is an incremental metalworking process for reducing the cross-sectional area or otherwise changing the shape of bars, tubes, or wires by repeated radial blows with two or more dies. This article discusses the applicability of swaging and metal flow during swaging. It describes the types of rotary swaging machines, auxiliary tools, and swaging dies used for rotary swaging and the procedure for determining the side clearance in swaging dies. The article presents an overview of automated swaging machines and tube swaging, with and without a mandrel. It analyzes the effect of reduction, feed rate, die taper angle, surface contaminants, lubrication, and material response on swaging operation. The article discusses the applications for which swaging is the best method for producing a given shape, and compares swaging with alternative processes. It concludes with a discussion on special applications of swagging.

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Brian Fluth, Donald Hack, Albert L. Hoffmanner, Richard Kell, Walter Perun, 2005. "Rotary Swaging of Bars and Tubes", Metalworking: Bulk Forming, S.L. Semiatin

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