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42CrMo合金表面单道轨迹激光熔覆工艺研究

Laser Cladding Process of 42CrMo Surface with Single-Pass

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摘要

采用正交试验研究了42CrMo合金表面单道轨迹激光熔覆的Stellite6涂层,分析了激光功率、扫描速度、送粉速率、光斑直径对熔覆层稀释率和显微硬度的影响及主要影响因素之间的交互作用。结果表明,激光功率对熔覆层稀释率的影响最大,而扫描速度对熔覆层显微硬度的影响最大。综合熔覆层稀释率和显微硬度的评价得到的最优工艺参数组合为激光功率1100 W,扫描速度8 mm·s-1,送粉速率1.2~1.4 rad·min-1,光斑直径3.7 mm。

Abstract

The orthogonal test of laser cladding of Stellite6 coating on the 42CrMo alloy surface with single-pass is carried out and the influences of laser power, scanning speed, powder feeding rate and spot diameter on the dilution rate and microhardness of cladding layers as well as the interactive action among the main influencing factors are analyzed. The results show that the laser power has the most significant influence on the dilution rate of cladding layer, while the scanning speed has the most obvious influence on the microhardness of cladding layer. The optimal process parameter combination is laser power of 1100 W, scanning speed of 8 mm·s-1, powder feeding rate of 1.2-1.4 rad·min-1 and spot diameter of 3.7 mm from the comprehensive analysis of the dilution rate and microhardness of cladding layers.

Newport宣传-MKS新实验室计划
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中图分类号:TG174.4

DOI:10.3788/lop56.041402

所属栏目:激光器与激光光学

基金项目:装备预研教育部联合基金(6141A0221)、江苏出入境检验检疫局科技计划项目(2018KJ04)

收稿日期:2018-08-09

修改稿日期:2018-08-20

网络出版日期:2018-09-05

作者单位    点击查看

程伟:江南大学江苏省食品先进制造装备技术重点实验室, 江苏 无锡 214122
武美萍:江南大学江苏省食品先进制造装备技术重点实验室, 江苏 无锡 214122
唐又红:苏州出入境检验检疫局, 江苏 苏州 215021
王航:江南大学江苏省食品先进制造装备技术重点实验室, 江苏 无锡 214122
叶秀:江南大学江苏省食品先进制造装备技术重点实验室, 江苏 无锡 214122

联系人作者:联系作者(wmp@169@jiangnan.edu.cn)

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引用该论文

Cheng Wei,Wu Meiping,Tang Youhong,Wang Hang,Ye Xiu. Laser Cladding Process of 42CrMo Surface with Single-Pass[J]. Laser & Optoelectronics Progress, 2019, 56(4): 041402

程伟,武美萍,唐又红,王航,叶秀. 42CrMo合金表面单道轨迹激光熔覆工艺研究[J]. 激光与光电子学进展, 2019, 56(4): 041402

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