| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to repair of metal plate worn-out end face of reparable part. Step of making recess is carried out whereat forged part is used as an electrode made from one of the following materials, i.e. metal powder, metal allot powder and ceramic powder.Then, pulse discharge between electrode end surface and metal plate end face is initiated in fluid or gas to cause electrode abrasion that brings about a recess in its end surface shaped to metal plate end face outline. Step of making auxiliary coating is performed whereat electrode is displaced in direction perpendicular to metal plate lateral side, at given preset discharge gap, to initiate pulse discharge between electrode recess inner side surface and metal plate end face side in gas of fluid to make auxiliary coating. Now, step of making final coating is performed whereat pulse discharge is initiated between electrode recess lower surface and metal plate end face upper surface in gas or fluid to make clad layer.EFFECT: adequate width of coating, decreased amount of electrode material spreading.4 cl, 6 dwg |
