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Characteristic assessment and analysis of residual stresses generated by dry belt finishing on hard turned AISI52100
Journal of Manufacturing Processes ( IF 6.2 ) Pub Date : 2020-09-23 , DOI: 10.1016/j.jmapro.2020.09.039
Wenxi Wang , Ferdinando Salvatore , Joël Rech

Considering the wide application of dry belt fining and the importance of residual stress for bearing parts, this paper has characterized the residual stresses distribution along the depth generated by dry belt finishing after hard turning on hard materials AISI52100. The influences of applied force and finishing duration on residual stresses were experimentally investigated. The results were then theoretically discussed and further analyzed through 2D multi-scratching finite element model. Experimental measurements showed dry belt finishing produced considerable compressive residual stresses in the external layer. The insignificant effect of applied force on residual stress was caused by an essential reduction of sharing individual force on every useful local grit. Although increasing scratching numbers could intend the amplitude of residual stresses slightly as well as the influenced field depth range, the material removal process on the superficial layer would partly reset them, resulting in an ignorable effect of finishing duration. Besides, an improved measuring method with sufficient penetration depth resolution of both X-ray and electrochemical removal is expected to characterize residual stresses distribution of belt finishing more appropriately.



中文翻译:

硬车削AISI52100上由干式皮带精加工产生的残余应力的特性评估和分析

考虑到干带精制的广泛应用以及残余应力对于轴承零件的重要性,本文对硬质材料AISI52100进行硬车削后,沿干带精加工产生的深度沿残余应力分布进行了表征。实验研究了施加力和精加工持续时间对残余应力的影响。然后对结果进行理论讨论,并通过二维多划痕有限元模型进行进一步分析。实验测量表明,干燥带精加工在外层产生了很大的压缩残余应力。施加的力对残余应力的微不足道的影响是由于在每个有用的局部粗砂上共享力的减少所导致的。尽管增加刮擦次数可能会略微影响残余应力的幅度以及受影响的场深范围,但表面层上的材料去除过程会部分重置它们,从而导致精加工持续时间的可忽略的影响。此外,期望一种具有足够的X射线穿透深度分辨率和电化学去除的改进的测量方法,以更适当地表征带束整理剂的残余应力分布。

更新日期:2020-09-23
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