FIELD: metallurgy.
SUBSTANCE: preliminary drawing of a blank from sheet into conical cup with use of a cone clamp is carried out. A weakening annealing of the blank is carried out to finishing drawing of the blank in a single die is performed. Forming of flat sheet blanks at different thicknesses into conical cup is performed in the die with heating and specific taper angle of the die and the clamp.
EFFECT: reduced thinning in the process and improved quality of the parts.
2 dwg
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