BENT ANGULAR SHAPE MANUFACTURING METHOD

摘要

FIELD: rolled stock production, possibly manufacture of cold bent angular shapes. ^ SUBSTANCE: method comprises steps of bending one flange of preliminarily formed angle having thickness S = 0.8 - 1.5 mm along arc of circle of predetermined radius R; simultaneously forming on other flange with width b cross wave-like corrugations of triangular cross section with maximum height H =(5.0 -6.7)S on edge of said flange. Corrugations of corrugated flange are formed at wavelength l determined according to given relation . ^ EFFECT: improved quality of formed shape. ^ 1 dwg, 1 ex