FIELD: machine building.
SUBSTANCE: invention can be used in machine building and in aerospace equipment during manufacture of blanks profiled along thickness for deep drawing. For sheet blank with constant thickness is given a conical shape by way of cave-in of its central part in the mandrel. In the mandrel beforehand carry out a groove in the form of truncated cone, the height of which corresponds to height of profiled part of the blank, and the acting part - at inner conic surface of the blank. Further carry out profiling by removal of metal from flange part of blank by cutter in plane perpendicular to axis of the mandrel.
EFFECT: quality of profiled along thickness blanks increases.
1 cl, 7 dwg
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