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[1]田英超,等.1Cr18Ni9Ti脉冲激光焊接工艺研究[J].火箭推进,2014,40(03):73-76.
　TIAN Ying-chao,ZHANG Yi-ling,et al.Research on pulsed laser welding technology of 1Cr18Ni9Ti[J].Journal of Rocket Propulsion,2014,40(03):73-76.
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1Cr18Ni9Ti脉冲激光焊接工艺研究

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 40 期数: 2014年03期 页码: 73-76 栏目: 工艺与材料 出版日期: 2014-06-27
Title:
Research on pulsed laser welding technology of 1Cr18Ni9Ti
作者:
田英超1;  2; 张祎玲2; 曹 明2
1. 上海交通大学，上海 200240；2. 上海空间推进研究所，上海 201112
Author(s):
TIAN Ying-chao1;  2;  ZHANG Yi-ling2;  CAO Ming2
1. Shanghai Jiaotong University, Shanghai 200240, China; 2. Shanghai Institute of Space Propulsion, Shanghai 201112, China
关键词:
峰值功率; 焊点重叠率; 脉冲宽度; 熔深
分类号:
V434-34
文献标志码:
A
摘要:
介绍了采用YAG脉冲激光器焊接不锈钢1Cr18Ni9Ti的工艺过程，通过调整离焦量、焊点重叠率、峰值功率和脉冲宽度进行试件焊接，并对焊缝熔深进行检测。试验结果表明：离焦量对焊缝熔深影响较大，负离焦量时可以获得较大的焊缝熔深；峰值功率对焊缝熔深影响最大，但峰值功率过大易出现焊接飞溅；焊点重叠率与焊缝熔深有效性密切相关，对产品密封性能影响大；脉冲宽度对焊缝熔深影响较小，对焊缝表面成形状态影响较大。针对推进系统中阀门壳体激光焊缝熔深要求，优化了工艺参数。采用上述工艺规范焊接的阀门产品已经过飞行考核。
Abstract:
The technological process of Austenitic stainless steel (1Cr18Ni9Ti) welded with pulsed YAG laser is introduced. Lots of welding tests were carried out by repeatedly adjusting the parameters like defocusing amount, overlap rate of welding points, peak power and pulse width, and the weld penetration was measured. The result shows that the defocusing amount affects the weld penetration to a certain extent, a larger weld penetration can be obtained in the case of the negative defocusing amount; the peak power has the biggest impact on the weld penetration, but overlarge peak power is easy to cause the weld spatter; the overlap rate of welding points is closely related to the valid weld penetration, which exerts a enormous influence on the sealing property; however, the pulse width has less influence on the weld penetration, but affects the forming state of weld surface. According to the weld

相似文献/References:

[1]刘泽敏,饶庆庆,林嘉伟.激光脉冲圈焊工艺研究与应用[J].火箭推进,2016,42(06):74.
　LIU Zemin,RAO Qingqing,LIN Jiawei.Research and application of impulse laser welding technology[J].Journal of Rocket Propulsion,2016,42(03):74.

备注/Memo

收稿日期：2014-01-22；修回日期：2014-04-09 作者简介：田英超（1977—），男，高级工程师，研究领域为焊接技术

更新日期/Last Update: 1900-01-01