日本丰田工业大学应用放电加工技术在碳钢表面成功地形成了牢固的碳化钨薄膜，这是利用了降低放电电极的导热率，使电极自身消耗堆积在基板上的现象。其特点是电极采用了由碳化钨粉末和铁粉加压成型的材料。为提高粕合强度，用碳化铭一钴烧结电极进行了再凝固处理。最后，用放 Japan’s Toyota University, the use of electric discharge machining technology in the carbon steel surface successfully formed a solid tungsten carbide film, which is used to reduce the thermal conductivity of the discharge electrode, so that the electrodes themselves stacked on the substrate phenomenon. It is characterized by the electrode by the tungsten carbide powder and iron powder pressure molding materials. In order to improve the strength of the meal, carbonized Ming-cobalt sintered electrode was re-solidified. Finally, use the release