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首页> 外文期刊>International Journal of Microstructure and Materials Properties >An approach to reduce the influence of tool wear on workpiece properties during hard turning
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An approach to reduce the influence of tool wear on workpiece properties during hard turning

机译：减少硬车削过程中刀具磨损对工件性能影响的方法

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摘要

Tool wear during hard turning of steel materials leads to unfavourable changes of the workpiece subsurface layers. Due to progressive flank wear at the cutting edge, thermal and mechanical loads affect adversely the residual stresses at the workpiece subsurface and white layers occur within the microstructure. These effects lead to a reduction of the functional behaviour of such machined components at operational conditions, especially under dynamic mechanical loads. This paper presents a method to avoid negative influences at machined subsurface layers in terms of residual stress. A modified cutting edge micro geometry is applied to assure a reliable process even with worn cutting tools by limiting the contact conditions between the tool and the workpiece interface at the tool flank face.
机译：钢材硬车削期间的工具磨损会导致工件表面下层的不利变化。由于切削刃的渐进侧面磨损，热负荷和机械负荷会对工件表面下的残余应力产生不利影响，并且在微结构内会出现白层。这些影响导致在运行条件下，特别是在动态机械负载下，这种机加工部件的功能性能下降。本文提出了一种方法，可避免残余应力对加工的地下层产生负面影响。通过限制刀具与刀具侧面端面之间的接触面接触条件，采用了改进的切削刃微观几何形状，即使使用磨损的切削刀具也能确保可靠的加工。

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