Abstract:
Machining of work piece will result in residual stress on the surface of the material, and leads to deformation to the work piece with complicated shape after heat cycles of brazing processing. This paper studies the 1Cr13Ni martensitic stainless steel in different machining process under the surface hardness and residual stress distribution state, to solve the brazing enterprises in the actual production process of stator assembly deformation. Research shows that, the machine acceleration and feed have influence on the hardness and stress. Analysis of the experimental data show that, with the increase of the acceleration of the machine, the material stress value increases, with the increase of the amount of feed, the stress value increases gradually. The stress test results of X Stress 3000 are in agreement with the microhardness analysis result, which verifies the correctness of material stress state and processing parameters. It is indicated that the mechanical parameters can lead to different stress states and hardness values before brazing. It also shows that the research direction is correct.