RU2008114775A

RU2008114775A - METHOD FOR PRODUCING BENDED THIN-WALL PROFILE OF CHANNEL TYPE

Info

Publication number: RU2008114775A
Application number: RU2008114775/02A
Authority: RU
Inventors: Владимир Анатольевич Марковцев (RU); Владимир Анатольевич Марковцев; Иван Иванович Лазарев (RU); Иван Иванович Лазарев; Максим Валерьевич Илюшкин (RU); Максим Валерьевич Илюшкин; Амир Шакирзянович Мурасов (RU); Амир Шакирзянович Мурасов
Original assignee: Открытое акционерное общество "Ульяновский НИАТ" (RU); Открытое акционерное общество "Ульяновский НИАТ"
Priority date: 2008-04-15
Filing date: 2008-04-15
Publication date: 2009-10-20
Also published as: RU2386508C2

Abstract

1. Способ изготовления тонкостенного профиля швеллерного типа из полосовой заготовки или ленты толщиной S, включающий подгибку полок в зонах изгиба по отношению к стенке и обжатие по толщине стенки и полок в роликах по переходам, отличающийся тем, что обжатие производят одновременно в зонах изгиба, по краям стенки и в частях полок, примыкающих к зонам изгиба на 0,04…0,08S, создавая вдоль профиля положительную продольную деформацию с уменьшением ее величины до нуля по высоте полки профиля. ! 2. Способ по п.1, отличающийся тем, что обжатие по краям стенки профиля выполняют на ширину 10…20S от зон изгиба, а обжатие полок производят от зоны изгиба до линии центра жесткости сечения профиля, при этом максимальное обжатие полок создается в зонах изгиба. ! 3. Способ по п.2, отличающийся тем, что обжатие зон изгиба, стенки и полок осуществляют в нескольких переходах при подгибке полок профиля на 25…65°.1. A method of manufacturing a thin-walled profile of a channel type from a strip blank or tape of thickness S, comprising bending the shelves in the bending zones relative to the wall and compressing the thickness of the wall and shelves in the rollers along the transitions, characterized in that the crimping is performed simultaneously in the bending zones, according to the edges of the wall and in parts of the shelves adjacent to the bending zones by 0.04 ... 0.08S, creating a positive longitudinal deformation along the profile with a decrease in its value to zero along the height of the profile shelf. ! 2. The method according to claim 1, characterized in that the compression along the edges of the profile wall is performed at a width of 10 ... 20S from the bending zones, and the compression of the shelves is carried out from the bending zone to the center of stiffness section of the profile, while the maximum compression of the shelves is created in the bending zones . ! 3. The method according to claim 2, characterized in that the compression of the bending zones, walls and shelves is carried out in several transitions when bending the shelves of the profile by 25 ... 65 °.

Claims

1. A method of manufacturing a thin-walled profile of a channel type from a strip blank or tape of thickness S, comprising bending the shelves in the bending zones relative to the wall and compressing the thickness of the wall and shelves in the rollers along the transitions, characterized in that the crimping is performed simultaneously in the bending zones, according to the edges of the wall and in parts of the shelves adjacent to the bending zones by 0.04 ... 0.08S, creating a positive longitudinal deformation along the profile with a decrease in its value to zero along the height of the profile shelf.

2. The method according to claim 1, characterized in that the compression along the edges of the profile wall is performed at a width of 10 ... 20S from the bending zones, and the compression of the shelves is carried out from the bending zone to the center of stiffness section of the profile, while the maximum compression of the shelves is created in the bending zones .

3. The method according to claim 2, characterized in that the compression of the bending zones, walls and shelves is carried out in several transitions when bending the shelves of the profile by 25 ... 65 °.