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ASM Handbook

Aluminum Science and Technology

Edited by
Kevin Anderson, FASM
Kevin Anderson, FASM
Mercury Marine
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John Weritz
John Weritz
Aluminum Association
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J. Gilbert Kaufman, FASM
J. Gilbert Kaufman, FASM
Kaufman Associates
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ASM International
Volume
2A
ISBN electronic:
978-1-62708-207-5
Publication date:
2018
Book Chapter

Extrusion and Drawing of Aluminum Alloys

By
Pradip Saha
Pradip Saha
The Boeing Company
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Published:
2018
Page range:
293 - 310
Publication history
November 22, 2018

Abstract

Extrusion can be cold or hot, depending on the alloy and the method used. This article focuses on the direct hot extrusion and describes a typical sequence of operations for the direct extrusion of a solid section. It discusses the key variables of extrusion process, including extrusion speed and extrusion exit temperature. The article reviews the classification of extrusion presses: direct, direct for seamless hollow, and indirect. The functions of the press dies and tooling are presented in a table. The article discusses the extrusion of soft and medium-grade alloys, hard alloys, and aluminum-matrix composites. It reviews common aluminum extrusion defects, including surface defects, blisters, and internal cracking. The article concludes with a discussion on the drawing of solid section and aluminum tube.

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Pradip Saha, 2018. "Extrusion and Drawing of Aluminum Alloys", Aluminum Science and Technology, Kevin Anderson, FASM, John Weritz, J. Gilbert Kaufman, FASM

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