[1]張穎云,陳素明,李 波.激光焊接參數對1.2 mmTC4鈦合金薄板焊縫的影響[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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激光焊接參數對1.2 mm
TC4鈦合金薄板焊縫的影響
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
42
期數:
2019年第9期
頁碼:
26-31
欄目:
試驗與研究
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
文章編號:
10.19291/j.cnki.1001-3938.2019.9.005
作者:
張穎云陳素明李 波
航空工業西安飛機工業(集團)有限責任公司, 西安 710089
Author(s):
ZHANG Yingyun CHEN Suming LI Bo
Avic Xi’an Aircraft Industry (group) Co., Ltd., Xi’an 710089, China
關鍵詞:
激光焊接TC4鈦合金焊縫宏觀形貌力學性能
Keywords:
laser welding TC4 titanium weld macroscopic morphology mechanical property
分類號:
TG456.7
DOI:
10.19291/j.cnki.1001-3938.2019.9.005
文獻標志碼:
A
摘要:
為了研究激光焊接參數對鈦合金焊縫的影響,對厚度1.2 mm的TC4鈦合金板材進行光纖激光焊接。分別采用單因素試驗和正交試驗研究了不同的激光工藝參數對焊縫形貌及力學性能的影響。單因素試驗結果表明:焊縫熔寬隨著激光功率的升高大體呈上升趨勢,焊縫背寬比隨著激光功率的升高先增大然后趨于穩定;焊縫熔寬隨著離焦量的增大逐漸減小,當離焦量達到4 mm時,出現未焊透現象;焊縫尺寸隨著焊接速度波動變化,當焊速大于1.5 m/min時,焊縫尺寸呈現減小趨勢。正交試驗結果表明:激光功率對抗拉強度的影響較大;而對于延伸率,相較于激光功率,離焦量和焊接速度對延伸率的影響水平相當。
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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備注/Memo

備注/Memo:
收稿日期:2019-04-05
作者簡介:張穎云(1968—),男,陜西臨潼人,高級工程師,現主要從事金屬材料焊接工藝研究。
更新日期/Last Update: 2019-10-24
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