Laser Welding of High-strength Steels Used in Transportation Industry - 1.

被引:0
|
作者
Blarasin, A.
机构
来源
Rivista Italiana della Saldatura | 1981年 / 33卷 / 05期
关键词
LASER; CARBON DIOXIDE - Applications - WELDING - Steel - WELDS - Mechanical Properties;
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学科分类号
摘要
A 15 kW AVCO continuous wave CO//2 laser has been used for evaluating the influence of shielding gas, focal point position, welding speed and power on depth of penetration. Tests have been carried out on two Nb microalloyed HSLA steel sheets, 2 mm and 8 mm thick. Mechanical tests on butt welded specimens have shown good strength and toughness of the joints. Laser welded joints showed high fatigue resistance. Metallograpic data are presented for the laser welds studied.
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页码:267 / 281
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