Inconel 625镍基高温合金激光增材制造内应力控制方式研究*

doi:10.13385/j.cnki.vacuum.2020.03.15

Abstract

Abstract: Based on the finite element analysis method, and combined with the Inconel 625 nickel-based alloy's material properties and process characteristics, everal stress control methods of laser melting additive manufacturing are analyzed. The simulation results show that the internal stress can be removed by the four control methods, which are the single point of preheating stress control method, surface sweeping by laser stress control method, based on the internal stress of environment temperature stress control method, and the partition formed first, then the whole connection stress control method. The control methods are simple and have strong significance in the field of engineering.

Key words: laser melting additive manufacturing, Inconel 625 nickel-based Alloys, stress control, numerical simulation

CLC Number:

TG146.2

ZHAO Yu-hui, ZHAO Ji-bin, WANG Zhi-guo, WANG Fu-yu. Research on the Stress Control Methods of Inconel625Nickel-Based Alloys Fabricated by Laser Melting Additive Manufacturing[J].VACUUM, 2020, 57(3): 73-79.

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Research on the Stress Control Methods of Inconel625Nickel-Based Alloys Fabricated by Laser Melting Additive Manufacturing

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