邹旸, 许小虎, 尚延涛, 李凯驰, 刘奋成, 周宝升. 加工参数对1Cr13Ni马氏体不锈钢表面硬度和残余应力的影响[J]. 南昌航空大学学报(自然科学版), 2016, 30(4): 12-17. DOI: 10.3969/j.issn.1001-4926.2016.04.003
引用本文: 邹旸, 许小虎, 尚延涛, 李凯驰, 刘奋成, 周宝升. 加工参数对1Cr13Ni马氏体不锈钢表面硬度和残余应力的影响[J]. 南昌航空大学学报(自然科学版), 2016, 30(4): 12-17. DOI: 10.3969/j.issn.1001-4926.2016.04.003
ZOU Yang, XV Xiao-hu, SHANG Yan-tao, LI Kai-chi, LIU Fen-cheng, ZHOU Bao-sheng. Effect of Machining Parameters on Surface Hardness and Residual Stress of 1Cr13Ni Martensitic Stainless Steel[J]. Journal of nanchang hangkong university(Natural science edition), 2016, 30(4): 12-17. DOI: 10.3969/j.issn.1001-4926.2016.04.003
Citation: ZOU Yang, XV Xiao-hu, SHANG Yan-tao, LI Kai-chi, LIU Fen-cheng, ZHOU Bao-sheng. Effect of Machining Parameters on Surface Hardness and Residual Stress of 1Cr13Ni Martensitic Stainless Steel[J]. Journal of nanchang hangkong university(Natural science edition), 2016, 30(4): 12-17. DOI: 10.3969/j.issn.1001-4926.2016.04.003

加工参数对1Cr13Ni马氏体不锈钢表面硬度和残余应力的影响

Effect of Machining Parameters on Surface Hardness and Residual Stress of 1Cr13Ni Martensitic Stainless Steel

  • 摘要: 机械加工会在工件表面造成不同程度的残余应力,残余应力过大则会造成零件在后续钎焊热循环中因为残余应力释放而发生尺寸变化。本文针对1Cr13Ni马氏体不锈钢材料,研究了其在不同机械加工参数下表面残余应力状态及硬度,以解决复杂结构零件在实际生产的钎焊变形问题。研究表明,机械加工切削速率和进刀量均会对材料的表面硬度及应力状态产生影响。随着切削速率的增加,材料应力值变大;随着进刀量的增大,应力值也逐步增大。应力测试结果与显微硬度分析结果变化趋势吻合,这说明材料在机械加工参数不同时会导致不同的表面硬度值和应力状态。

     

    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.

     

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