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ASM Handbook

Welding Fundamentals and Processes

Edited by
T. Lienert
T. Lienert
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T. Siewert
T. Siewert
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S. Babu
S. Babu
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V. Acoff
V. Acoff
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ASM International
Volume
6A
ISBN electronic:
978-1-62708-174-0
Publication date:
2011
Book Chapter

Quality Control of Electron Beams and Welds

By
T.A. Palmer
T.A. Palmer
Pennsylvania State University
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P.W. Hochanadel
P.W. Hochanadel
Los Alamos National Laboratory
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K. Lachenberg
K. Lachenberg
Sciaky, Inc.
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Published:
2011
Page range:
548 - 555
Publication history
July 28, 2011

Abstract

The primary goal of quality control in electron beam (EB) welding is to consistently produce defect-free and structurally sound welds. This article discusses the common procedures for controlling the EB welding process, the control of the essential machine parameters, and the introduction of closed-loop controls and diagnostic feedback systems in the EB welding systems. It reviews the beam diagnostic tools that interrogate the beam to produce a reconstruction of the power density distribution and provide additional information on the size and shape of the EB. Knowledge of these beam parameters can be used to improve process understanding and control. The article also describes the application areas of beam diagnostics: machine characterization, weld parameter transfer, and weld quality control.

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T.A. Palmer, P.W. Hochanadel, K. Lachenberg, 2011. "Quality Control of Electron Beams and Welds", Welding Fundamentals and Processes, T. Lienert, T. Siewert, S. Babu, V. Acoff

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