Investigations of the sound frequency effect on laser acoustic welding of stainless steel

被引：8

作者：

Gilmutdinov, A. Kh ^{[1
]}

Gorunov, A., I ^{[1
]}

Nyukhlaev, O. A. ^{[1
]}

Schmidt, M. ^{[2
]}

机构：

[1] Kazan Natl Res Tech Univ, Karl Marx Str 10, Kazan 420111, Russia

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

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2020年 / 106卷 / 7-8期

基金：

俄罗斯科学基金会;

关键词：

Laser acoustic welding; Stainless steel; Microstructure; Hardness; Ultrasonic vibrations; ULTRASONIC VIBRATION; MECHANICAL-PROPERTIES; AISI; 321; MICROSTRUCTURE; PARAMETERS; INTEGRITY; JOINTS; ALLOY;

D O I：

10.1007/s00170-019-04825-5

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The key features of laser acoustic welding (LAW) of AISI 321 stainless steel samples are investigated in the paper. It is found that the microstructure and the quality of the welds depend strongly on the frequency of the applied acoustic waves, which were selected at sonic (15 kHz) and ultrasonic (22, 40, 80, and 100 kHz) levels. The impact on the molten alloy acoustic vibrationswith a frequency of 80 kHz provides weld joints with a uniform structure without detectable pores and homogeneous chemical composition in the cross-section. This results in noticeable improvements in mechanical properties of the weld. The pronounced displacement of themetal from themelting zone and highly inhomogeneous structure of the weld observed at 15 kHz is attributed to the sonocapillary effect.

引用

页码：3033 / 3043

页数：11

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