利用等离子放电处理硬质合金刀具

Tomáš Vopát, Štefan Podhorský, Jozef Peterka, Martin Sahul, Martina Kusá, Marián Haršáni
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引用次数: 0

摘要

本文介绍了一种采用先进方法制备切削工具边缘的新方法。实验以硬质合金切削刀片为样本,使用电解液中的等离子体放电进行制备。与电抛光处理相比,这种技术是一种更环保的方法。实验旨在确定等离子处理的工艺参数对材料去除率和切削刃半径大小的影响。实验中,电解液的浓度、电极间的电压、电解液的温度和操作时间都发生了变化。随着电解液浓度、电压和电解液温度的降低,材料去除率和切削刃半径尺寸增加得更快。在指定的工艺参数范围内,在 10 秒的操作时间内,材料去除率提高了 155%,切削刃半径尺寸提高了 57%。这种变化可以通过设置不同的工艺参数来实现。实验结果证明,等离子处理可以控制切削刃半径的成形。根据切削刃半径的大小,在电解液中使用等离子放电进行切削刃制备只需几秒钟。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Treatment of a cemented carbide cutting tool using plasma discharges

The paper deals with a novel method for the edge preparation of cutting tools using an advanced approach. Cemented carbide cutting inserts were used as a sample in the experiment, and were prepared using plasma discharges in electrolyte. This technique is an environmentally-friendlier method in contrast to electropolishing treatment. The experiment aimed to determine the influence of process parameters of plasma treatment on the material removal rate and cutting edge radius size. In the experiment, concentration of electrolyte, voltage between electrodes, temperature of electrolyte, and operating time were varied. The material removal rate and cutting edge radius size increased faster with the decreasing concentration of electrolyte, decreasing voltage, and decreasing temperature of electrolyte. The material removal percentage increase was 155 percent, and 57 percent for cutting edge radius size during the 10 seconds of operation time in the specified range of process parameters. This change can be achieved by setting various process parameters. The results of the experiment proved that plasma treatment can control the forming of cutting edge radii. Cutting edge preparation using plasma discharges in electrolyte takes only a few seconds, depending on the cutting edge radius sizes.

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CiteScore
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