RU2007123095A - METHOD FOR PROFILING AN EQUAL CHANNEL - Google Patents

Abstract

A method for profiling an equal-channel channel, which consists in bending the strip billet sequentially along the aisles by creating shelves and a channel wall, characterized in that when forming the channel with a curved wall and flanges on the shelves, folding of flanges into the profile is carried out for the first three passes in the mode: 0 ° → 45 ° → 75 ° → 91 ° and the deflection of the wall up is carried out in the second pass, upon reaching an angle of 78 ° between the wall and the shelves, the latter are bent to an angle of 80 ° while bending down the edge sections of the wall at an angle l 10 ° and form an angle of 90 ° between these sections and shelves, the shelves in the penultimate pass bends to 87 ° while maintaining the right angle between them and the said edge regions, and in the latter passage flange is folded inwardly to 3 °.

Claims (1)

A method of profiling an equal-channel channel, which consists in bending the strip billet sequentially along the aisles with the formation of shelves and the channel wall , characterized in that when shaping the channel with a concave wall and flanges on the shelves, the flanging inside the profile is bent in the first three passes according to the mode: 0 ° → 45 ° → 75 ° → 91 °, and the deflection of the wall upward is carried out in the second pass, when reaching an angle of 78 ° between the wall and the shelves, the latter are bent to an angle of 80 ° while bending down the edge sections of the wall n and the angle is 10 ° and with the formation of an angle of 90 ° between these sections and the shelves, in the penultimate passage, the shelves are bent to 87 ° while maintaining a right angle between them and the mentioned edge sections, and in the last passage the shelves are bent inward by 3 °.