[1]张颖云,陈素明,李 波.激光焊接参数对1.2 mmTC4钛合金薄板焊缝的影响[J].焊管,2019,42(9):26-31.[doi:10.19291/j.cnki.1001-3938.2019.9.005]
 ZHANG Yingyun,CHEN Suming,LI Bo.Influence of Laser Welding Parameters on the Weld of TC4 Titanium Alloy with 1.2 mm Thickness[J].,2019,42(9):26-31.[doi:10.19291/j.cnki.1001-3938.2019.9.005]
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激光焊接参数对1.2 mm
TC4钛合金薄板焊缝的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
42
期数:
2019年第9期
页码:
26-31
栏目:
试验与研究
出版日期:
2019-09-28

文章信息/Info

Title:
Influence of Laser Welding Parameters on the Weld of
TC4 Titanium Alloy with 1.2 mm Thickness
文章编号:
10.19291/j.cnki.1001-3938.2019.9.005
作者:
张颖云陈素明李 波
航空工业西安飞机工业(集团)有限责任公司, 西安 710089
Author(s):
ZHANG Yingyun CHEN Suming LI Bo
Avic Xi’an Aircraft Industry (group) Co., Ltd., Xi’an 710089, China
关键词:
激光焊接TC4钛合金焊缝宏观形貌力学性能
Keywords:
laser welding TC4 titanium weld macroscopic morphology mechanical property
分类号:
TG456.7
DOI:
10.19291/j.cnki.1001-3938.2019.9.005
文献标志码:
A
摘要:
为了研究激光焊接参数对钛合金焊缝的影响,对厚度1.2 mm的TC4钛合金板材进行光纤激光焊接。分别采用单因素试验和正交试验研究了不同的激光工艺参数对焊缝形貌及力学性能的影响。单因素试验结果表明:焊缝熔宽随着激光功率的升高大体呈上升趋势,焊缝背宽比随着激光功率的升高先增大然后趋于稳定;焊缝熔宽随着离焦量的增大逐渐减小,当离焦量达到4 mm时,出现未焊透现象;焊缝尺寸随着焊接速度波动变化,当焊速大于1.5 m/min时,焊缝尺寸呈现减小趋势。正交试验结果表明:激光功率对抗拉强度的影响较大;而对于延伸率,相较于激光功率,离焦量和焊接速度对延伸率的影响水平相当。
Abstract:
In order to study the influence of laser welding parameters on the weld of titanium alloy, TC4 titanium alloy sheet with thickness of 1.2 mm was welded by optical fiber laser. The influences of different laser processing parameters on the weld morphology and mechanical properties were studied by single factor test and orthogonal test. The single factor test results show that the weld width increases with the increase of laser power, and the weld back width ratio increases first and then stabilizes with the increase of laser power. The weld width decreases gradually with the increase of defocusing amount, and when the defocusing amount reaches 4 mm, the weld unpenetrated phenomenon occurs. The weld size varies with the fluctuation of welding speed. When the welding speed is greater than 1.5 m/min, the weld size tends to decrease. The results of orthogonal experiment show that the laser power has a great influence on the tensile strength, and the influence of defocusing and welding speed on the elongation is comparable to that of laser power.

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备注/Memo

备注/Memo:
收稿日期:2019-04-05
作者简介:张颖云(1968—),男,陕西临潼人,高级工程师,现主要从事金属材料焊接工艺研究。
更新日期/Last Update: 2019-10-24