|Table of Contents|

Research on laser spot-welding technology of Nb-Hf alloy nozzle extension section(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2017年06期
Page:
88-96
Research Field:
工艺与材料
Publishing date:

Info

Title:
Research on laser spot-welding technology of Nb-Hf alloy nozzle extension section
Author(s):
WANG Yingjie; YANG Weipeng
Xi'an Space Engine Factory, Xi'an 710100, ChinaAbstract:The laser spot-welding technologies in a circular path motion mode of NbHf10-1 alloy lapped structures with δ1=1+1 mm and δ2= 1+0.7 mm thickness combinations are s
Keywords:
laser spot-welding;  Nb-Hf alloy;  lapped structure;  nozzle extension section
PACS:
V261-34
DOI:
-
Abstract:
The laser spot-welding technologies in a circular path motion mode of NbHf10-1 alloy lapped structures with δ1=1+1 mm and δ2= 1+0.7 mm thickness combinations are studied in this paper. The laser spot-welding process specifications were obtained based on the study of the relations between weld penetration and welding speed, between weld penetration and welding power, as well as between weld shear resistance/heat input and test serial number. The engines with welded NbHf10-1 alloy nozzle extension sections adopting the above process specifications have passed the high-altitude simulation tests.

References:

[1] 赵耀邦, 徐爱杰, 姜勇, 等. 激光焊接技术研究进展及其在航天领域的应用[J]. 航天制造技术, 2013(3): 55-58.
[2] 温志先, 刘洋, 汪永阳, 等. 高温钛合金TA12激光-MIG复合焊应力场有限元分析[J]. 电焊机, 2014, 44(12): 94-98.
[3] 魏敬丹, 张天宇, 张景超, 等. 铝合金激光拼焊应力场数值模拟[J]. 热加工工艺, 2013, 42(15): 173-175.
[4] 张亮. 中厚板激光多层焊温度场与应力应变场的数值模拟[D]. 哈尔滨: 哈尔滨工业大学工学硕士学位论文, 2011.
[5] 王俊杰, 常明, 何恩光. 钛合金薄板激光修饰焊残余应力研究[J]. 焊接技术, 2015(3): 75-77.
[6] 李亚江, 李嘉宁. 激光焊接/切割/熔覆技术[M]. 北京: 化学工业出版社, 2012.
[7] 王吉平. 小直径超薄壁管纵缝的激光焊接[J]. 火箭推进, 2005, 31(1): 44-46.
WANG Jiping. The laser welding of longitudinal seam in small diameter ultralight wall tubes[J].Journal of rocket propulsion, 2005, 31(1): 44-46.
[8] 叶力华.激光焊接夹层喷管的技术现状[J].火箭推进, 2003, 29(5): 38-41.
YE Lihua. The technology status of laser welding interlayer nozzle[J]. Journal of rocket propulsion, 2003, 29(5): 38-41.
[9] 刘泽敏,王磊,谢屹.自锁阀激光焊接工艺研究[J]. 火箭推进, 2016, 42(4): 90-96.
LIU Zhemin, WANG Lei, XIE Yi. Thetechnical study on laser welding of self locking valve[J].Journal of rocket propulsion, 2016, 42(4): 90-96.
[10] 吕涛.钛合金舱体结构件激光点焊变形预测与焊接顺序优化[D].哈尔滨:哈尔滨工业大学, 2013.

Memo

Memo:
-
Last Update: 1900-01-01