Research on pulsed laser welding of TiB2-enhanced aluminum matrix composites

被引：7

作者：

Dai Jun ^{[1
]}

Liu Zheng ^{[2
]}

Yang Li ^{[1
]}

Wang Yang ^{[1
]}

Zhou Chiyu ^{[1
]}

Zhang Yaocheng ^{[1
]}

机构：

[1] Changshu Inst Technol, Sch Mech Engn, Changshu 215500, Peoples R China

[2] Suzhou Top Inst Informat Technol, Sch Modern Technol, Kunshan 215311, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2016年 / 85卷 / 1-4期

关键词：

Pulsed laser; Aluminum matrix composites; Laser power; Weld forming; MECHANICAL-PROPERTIES; PROGRESS; PART;

D O I：

10.1007/s00170-015-7887-3

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, pulsed laser processing technology was used to weld TiB2-enhanced aluminum matrix composites of 2 mm thickness. The effects of welding parameters on welded joints were investigated. The results show that the effect of laser power on the weld forming is obvious. The penetration and width of welded joints were increased while the laser power was increasing. The coefficient of weld forming was changed from 4.19 to 0.997. The base metal was in full penetration when the laser power was 5.5 kW. The hardness of the fusion zone is reached 120 HV when the laser power was 6 kW. It is much higher than that of base metal because of dispersed particles TiB2. The pulse frequency and the welding speed are very important. The good welding formation can be obtained when the parameters meet the formula fd = (3.6-5.4)v. TiB2-enhanced aluminum matrix composites can be well welded with the pulsed laser.

引用

页码：157 / 162

页数：6

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