Heat treatment of die parts

Die each parts heat treatment requirements: processing requires cutting is one of the basic process of cold stamping. It is the use of blanking die in the stress on the material of a stamping process. Die is a kind of mold with a blade. Cutting edge when cutting into are washed to the material, and under the intense impact and the intense friction material, make the edge place after a period of use can serious wear and tear, by the start of the sharp, to finally become a round blunt, affect the quality of the subsequent products. In order to ensure product quality long-term stability of the parts, which requires the die punch to have higher wear resistance, but also to have certain compressive strength, flexural strength and certain impact blade. And to die, in addition to the bending strength seems to demand is not high, its compressive strength and toughness of demand higher than punch. For blanking die convex and concave die the above requirements, in addition to correctly choose convex and concave die steel, must have the reasonable heat treatment process to ensure that after heat treatment of hardness and toughness, both be short of one cannot. Die forming parts after heat treatment in order to arrange the final heat treatment hardening, should be ordered by the heat treatment process with the machining process sequence is: forging, annealing heat treatment to mechanical rough machining and heat treatment quenching and tempering, electric processing ( Edm hole or thread cutting) Processing molding - QianXiu assembly. 。 Thus it can be seen that heat treatment process in the manufacture of stamping die, it is very important and indispensable process. For progressive die, compound die position tolerance and size tolerance requirement precision punching die, not only to comply with the above process arrangement, in order to reduce heat treatment distortion, often in processing are also remove stress treatment, conditioning heat treatment process, etc.