Influence of oscillation frequency and focal diameter on weld pool geometry and temperature field in laser beam welding of high strength steels

被引：16

作者：

Mann, Vincent ^{[1
]}

Hofmann, Konstantin ^{[1
]}

Schaumberger, Kerstin ^{[1
]}

Weigert, Tobias ^{[1
]}

Schuster, Stephan ^{[1
]}

Hafenecker, Jan ^{[1
,2
]}

Huebner, Simon ^{[1
,2
]}

Lipinski, Lisa ^{[1
,2
]}

Roth, Stephan ^{[1
,3
]}

Schmidt, Michael ^{[1
,2
,3
]}

机构：

[1] Bayer Laserzentrum GmbH Blz, Konrad Zuse Str 2-6, D-91052 Erlangen, Germany

[2] Friedrich Alexander Univ Erlangen Nurnberg, Inst Photon Technol LPT, Konrad Zuse Str 3-5, D-91052 Erlangen, Germany

[3] Erlangen Grad Sch Adv Opt Technol SAOT, Paul Gordan Str 6, D-91052 Erlangen, Germany

来源：

10TH CIRP CONFERENCE ON PHOTONIC TECHNOLOGIES [LANE 2018] | 2018年 / 74卷

关键词：

laser beam welding; high strength steels; beam oscillation; weld pool geometry; infrared thermography; solidification conditions; temperature field;

D O I：

10.1016/j.procir.2018.08.148

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

As weld pool geometry and thermomechanical strains are known to affect formation of solidification cracks, the influence of a superimposed beam oscillation on these characteristics is investigated for this paper. In this context the effects of the oscillation frequency and focal diameter on the weld pool and temperature field are determined by means of infrared thermography. As a result an increase of the weld pool size for larger focal diameters and a more even shape of the seam edges for higher frequencies can be identified. (C) 2018 The Authors. Published by Elsevier Ltd.

引用

页码：470 / 474

页数：5

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