To arrange the resistance erosion characteristic machine part in surface layer formation method of the resistance erosion characteristic machine part and

摘要

A step of an object to form an erosion film excellent, arranging member (2) working solution (3), the member for (2), and arranged at a predetermined gap apart from Si electrode (1) A surface layer forming process comprising the steps of supplying to the member side the Si component from (1) the Si electrode to form a Si-containing surface layer by the, to generate the discharge by applying a predetermined voltage, discharge that the value of the time integral of the current value of the pulse is repeatedly generates the discharge pulse is in the range of 30A · μs~80A · μs, the iron-based metal structure of the Si content is 3~11wt% in the treated part I is formed to a thickness of 5~10μm.