Electrical Discharge Machining of Tungsten Carbide‐Cobalt Composites
Electrical Discharge Machining of Tungsten Carbide‐Cobalt Composites
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碳化钨-钴复合材料的放电加工
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
W. Tsai
中科院分区：
文献类型：
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作者：
A. Gadalla;W. Tsai
将电流、频率或脉冲持续时间增加到一定值可以提高切割速度和去除率。通过移动WC颗粒和微裂纹而产生的涂抹空腔的液体量随着钴含量和/或WC颗粒尺寸的增加而增加。在表面检测到碳的消耗以及 W2C 和 WC1−x 的形成。对碎片的分析表明，除了熔化钴基体之外，还会形成金属蒸气并凝结成空心非晶球体，该球体变形并凝结成空心非晶球体，如果压碎，该球体变形并结晶。
Increasing the current, the frequency, or the pulse duration up to certain values increased the speed of cutting and rate of removal. The amount of liquid smearing the cavities prcduced by dislodging the WC grain and microcracks increased with increasing cobalt content and/or WC grain size. Depletion of carbon and formation of W2C and WC1−x were detected on the surface. An analysis of debris showed that, in addition to melting the cobalt matrix, metallic vapors are formed and condense to hollow noncrystalline spheres which deformed and condense to hollow noncrystalline spheres which deform and crystallize if crushed.