All these results show that severe plastic deformation occurred on the grinding surface, the strain strengthening is the basic reason for the increase of the yield strength in grinding affected layer.
这些结果说明，磨削表面发生了严重的塑性形变。冷作塑性形变强化是磨削影响层的屈服强度得以提高的根本原因。
The new rolling cutter for the recoiling vest-like plastic bag manufacturing device is developed, the structure, material, heat treatment process and edge grinding techniques are improved.
研制了卷装背心袋式塑料制袋机用新型滚刀，在刀具结构、材料、热处理工艺和刃磨技术等方面进行了全面的改进和更新。
How to avoid respiratory dust in sanding, grinding and cutting operations in composite and plastic workshops.
如何避免在复合材料打磨、切割等加工过程中吸入粉尘。
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