超声波振动冲击对锯切过程中锯片自锐性的影响研究

沈剑云, 向 鑫, 徐西鹏

振动与冲击 ›› 2015, Vol. 34 ›› Issue (12) : 46-50.

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (12) : 46-50.
论文

超声波振动冲击对锯切过程中锯片自锐性的影响研究

  • 沈剑云, 向  鑫, 徐西鹏
作者信息 +

Study on the influence of ultrasonic vibration on the self-sharpening of diamond saw-blade during sawing process

  • SHEN Jian-yun, XIANG Xin, XU Xi-peng
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文章历史 +

摘要

超声波振动辅助加工是一种很好的加工硬脆材料的方法,而且超声波振动冲击能够对金刚石磨具进行修锐。本文通过观察氧化铝陶瓷材料超声波振动辅助锯切过程中金刚石锯片表面磨粒和结合剂形貌变化、测试分析锯切力及力比的变化特征,研究超声波振动冲击对锯切过程中金刚石锯片自锐性的影响。在超声振动辅助锯切过程中锯片结合剂可被连续地去除使得其工作表面不断有新的磨粒出露,而且金刚石磨粒保持着合适的出刃高度和容屑空间,磨粒表面还可以被微破碎形成微切削刃,因此,保持金刚石锯片工作面得以保持着稳定的锐利性,这也使得在锯切过程中的锯切力和力比不随锯切行程的累积而明显增大。

Abstract

 Ultrasonic vibration assisted machining is a widely used method for machining of brittle materials. The ultrasonic vibration also could dress the diamond grinding tool during the machining process. In this study, the influence of ultrasonic vibration on the self-sharpening of diamond saw-blade was investigated with observing saw-blade surface topography and analyzing cutting force during the process of ultrasonic vibration assisted saw-ing alumina ceramic. The bond material of diamond saw-blade was continually removed and led to new diamond protrusion on the blade surface under the ultrasonic vibration shock. In the meantime, the diamond abrasives were kept with proper protrusion and chip space. Moreover, the ultrasonic vibration shock also cloud break the diamond grits to produce micro cutting edge. Therefore, the saw-blade work surface was steady kept sharpness during ul-trasonic vibration assisted sawing, and the sawing force and force ratio did not increase with the increasing of cu-mulative sawing passes.

关键词

超声波振动 / 锯切 / 自锐性 / 金刚石锯片

Key words

Ultrasonic vibration / Sawing / Self-sharpening / Diamond saw-blade

引用本文

导出引用
沈剑云, 向 鑫, 徐西鹏. 超声波振动冲击对锯切过程中锯片自锐性的影响研究[J]. 振动与冲击, 2015, 34(12): 46-50
SHEN Jian-yun, XIANG Xin, XU Xi-peng. Study on the influence of ultrasonic vibration on the self-sharpening of diamond saw-blade during sawing process[J]. Journal of Vibration and Shock, 2015, 34(12): 46-50

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