FIELD: plastic metal working.
SUBSTANCE: proposed method of manufacture of shells from sheet blanks includes application of force to blank through rubber pad located in container which forces it into forming tool whose working surface corresponds to form of outer surface of part. When manufacturing shells with corrugations pointed outwards the shell and decreasing in height and width from periphery to center, rubber pad is acted upon by spherical punch, diameter of spherical surface of punch being equal to diameter of stamped blank. Thickness of pad is 4-6 times as great as thickness of stamped material.
EFFECT: improved quality of manufacture of parts, reduced thinning.
4 dwg
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| 0 |
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SU259035A1 |
