Method for assembling hard alloy cold heading die
Are you the assembly of mould and punch, or the setting of hard alloy die core and steel sleeve when making cold heading die?If the mold and punch assembly, the use of gap assembly, the accuracy depends on the accuracy of your equipment,
Technological requirements for hole processing of cemented carbide die:1, carbide mold hole processing, selection, processing methods: according to the requirements of the drawings, select the electrical processing methods.2, select electrode material: according to the processing requirements, determine the processing methods and processing equipment to determine the electrode material.3. Design electrode: Design electrode according to clearance, shape and effective length of blade.4, processing electrode: generally use shaping grinding or square planer processing.5 、 clamping electrode.6, be processed carbide mold preparation.7. Calibration electrode.8 、 carbide mould clamping and positioning.9. Adjust the upper and lower positions of the spindle head.10, processing preparation.11, boot processing.12, regulation switching and intermediate inspection.13, carbide mold inspection: carbide mold after processing, should be carefully checked according to drawings, whether it meets the requirements of the drawings
If it is made of hard alloy cold die core and the steel bushing assembly, depends on the heat treatment hardness you cold die steel sleeve to be, if not steel heat treatment, direct heat bushing, the amount of interference for hard alloy core diameter of about 0.6%, if the steel heat treatment to HRC40 about the amount of interference for hard alloy core diameter about 0.3%.
