ANSYS Numerical Simulation of Laser Cladding Ni/SiC Process Parameter Optimization

LIU Li-jun; ZHANG Jin-ting; LIU Da-yu; CUI Yuan-biao; JIA Zhi-xin; LI Ji-qiang

doi:10.15938/j.jhust.2022.04.011

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ANSYS Numerical Simulation of Laser Cladding Ni/SiC Process Parameter Optimization

更新时间：2026-08-31

- ANSYS Numerical Simulation of Laser Cladding Ni/SiC Process Parameter Optimization
- Vol. 27, Issue 4, Pages: 81-91(2022)
- 作者机构：
  
  1. 1哈尔滨理工大学材料科学与工程学院,哈尔滨,150080
  2. 3浙大宁波理工学院,浙江,宁波,315100
  3. 2哈尔滨职业技术学院机械工程学院,哈尔滨,150081
- 作者简介：
- 基金信息：
- DOI：10.15938/j.jhust.2022.04.011
  CLC： TG456.7
- Published：2022
- 稿件说明：
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LIU Li-jun, ZHANG Jin-ting, LIU Da-yu, et al. ANSYS Numerical Simulation of Laser Cladding Ni/SiC Process Parameter Optimization[J]. 2022, 27(4): 81-91.
DOI：

LIU Li-jun, ZHANG Jin-ting, LIU Da-yu, et al. ANSYS Numerical Simulation of Laser Cladding Ni/SiC Process Parameter Optimization[J]. 2022, 27(4): 81-91. DOI： 10.15938/j.jhust.2022.04.011.

摘要

针对修复模具表面失效的问题，采用数值模拟技术对激光熔覆Ni/SiC过程进行参数优化。建立了以不同激光电流、扫描速度及离焦量作为优化工艺参数的有限元分析模型，进行激光熔覆仿真分析，通过改变工艺参数的大小对温度场和应力场进行研究。结果表明：温度和残余应力都随激光电流的增大而升高，且它们都随着扫描速度和离焦量的增大而减小。其中，激光电流、离焦量对温度场的影响比扫描速度明显；离焦量对应力场的影响比激光电流和扫描速度明显。经应力场实验验证，最终实验结果与应力场模拟结果的横向残余应力最高处相差76MPa，纵向残余应力最高处相差86MPa。实验结果与应力场模拟结果仅存在细微误差，且误差在合理范围内，证明了模拟结果的正确性。对激光熔覆工艺参数进行优化，优化后的工艺参数为：激光电流120A，扫描速度为60mm/min，离焦量为50mm。

Abstract

To overcome the issue of repairing mold surface failure

the parameters of the laser cladding Ni/SiC process is optimized using numerical simulation.The different laser currents

scanning speeds and defocusing are adjusted to optimize simulation result of laser cladding.Meanwhile

the influence of the temperature field and stress field also is studied by changing the size of the process parameters.The simulation results show that temperature and residual stress both increase with the increase of laser current and decrease with the increase of scanning speed and defocusing amount.Among them

the influence of laser current and defocusing amount is more obvious than that of scanning speed on temperature field.The influence of defocus on the stress field is more obvious than that of laser current and scanning speed.Experimental verification shows that the maximum horizontal welding residual stress difference is 76MPa and the maximum longitudinal welding residual stress difference is 86MPa.The experimental error within a reasonable range proves the correctness of the simulation results. Finally

the optimized laser cladding process parameters is obtained: laser current is 120A

scanning speed is 60mm/min

and defocus is 50mm.

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