摘要:
The invention relates to a method for repairing a damage point (31) in the surface of cast parts (13). The invention further relates to a method by which a repair material suitable for the cited repair method can be produced. According to the invention, spray particles (19) having the same cast structure as the cast part (13) are used as materials. Said particles are applied to the damage point by cold gas spraying, wherein the cold gas spraying is characterized in that the spray particles are not melted and, advantageously, the cast structure is retained after the spray particles (19) contact the repair point (31). According to the invention, the repair point can thus be advantageously furnished with the same properties as the rest of the component to be repaired. According to the invention, the repair material can be produced in that a cast part having the required cast structure is reduced to small pieces.
摘要:
The invention relates to a method for producing a hardened surface of a component made of a metal material and a component hardened according to said method. According to the invention, at least part of the surface of the component is melted by supplying energy after the component has been cast. An auxiliary material is added to the melt thus obtained and the solidification of the melt with the auxiliary material is awaited such that the surface of the component is subsequently hardened in said region.