METHOD OF SHAPING FRONT SKINS Russian patent published in 1997 - IPC

Abstract SU 1417282 A1

FIELD: manufacture of front skins of aircrafts. SUBSTANCE: method comprises steps of placing blank to stretching press for preliminarily shaping ridge and finally shaping sideframes by lengthwise stretching; then additionally shaping ridge of skin by bending it along punch in die unit. Such process allows to eliminate bending operations for finishing sideframes and ridge after cross stretching and bending-rolling out. EFFECT: lowered allowance values, increased accuracy. 2 cl, 5 dwg

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SU 1 417 282 A1

Authors

Matsnev V.N.

Dates

1997-04-20—Published

1986-03-18—Filed