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首页> 外文会议>International Conference on Stress Evaluation Using Neutrons and Synchrotron Radiation >Experimental Investigation of Residual Stresses after Heat Treatment and Grinding Processes in the Production of Ball Bearing Rings
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Experimental Investigation of Residual Stresses after Heat Treatment and Grinding Processes in the Production of Ball Bearing Rings

机译：滚珠轴承环生产中热处理和研磨过程后残余应力的实验研究

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摘要

Experimental investigation of residual stresses after heat treatment and grinding processes in the production of ball bearing rings has been carried out. The residual stresses were measured by X-ray diffraction method utilizing chromium radiation, which has an average penetration depth of 5 μm incident on 100Cr6 (AIS1-E52100) ball bearing steel. The process parameters of heat treatment and grinding processes were varied so as to represent the extreme values that can be applied in the respective processes. Hardness and percent retained austenite limit the heat treatment process parameters; while roundness, surface roughness and form the grinding process. Tensile surface residual stresses on the raceway of ball bearing rings changes to compression after grinding in both circumferential and axial directions. In grinding relatively higher compressive stresses were measured in axial direction compared to the circumferential direction. This experimental investigation also showed that the influence of heat treatment process parameters on the magnitude and distribution of residual stresses survived even after grinding process; i.e. heat treatment and grinding processes cannot be evaluated independently in process design for favourable residual stresses.
机译：进行了热处理后残余应力的实验研究，并进行了在滚珠环生产中的研磨过程。通过利用铬辐射的X射线衍射方法测量残余应力，其在100cr6（AIS1-E52100）滚珠轴承钢上的平均渗透深度为5μm。改变热处理和研磨过程的过程参数，以表示可以在相应过程中应用的极端值。硬度和保留百分比奥氏体限制热处理过程参数;虽然圆度，表面粗糙度并形成研磨过程。滚珠轴承环滚道的拉伸表面残余应力在沿周向和轴向磨削后改变为压缩。与圆周方向相比，在磨削相对较高的压缩应力时，在轴向上测量相对较高的压缩应力。这种实验研究还表明，即使在研磨过程中，热处理过程参数对残留应力的幅度和分布的影响均匀;即不能在工艺设计中独立地评估热处理和研磨过程，以获得有利的残余应力。

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