Rolling bending method and rolling bending apparatus
AssigneeDenso Corporation
InventorsChiaki Sasaki, Kenta Tateyama, Hidemasa Otsubo, Kengo Takeshita
Life of this patent
Estimating the term…
Abstract
A steel strip is fed and compressed between a driving roller and a compression roller to generate a stress greater than a yield stress in the steel strip and to elongate one periphery portion of the steel strip, which is on one side, more than the other periphery portion of the steel strip, which is on the other side, in a sending direction. The compression roller includes a first contact portion and a second contact portion. The second contact portion extends from an end of the first contact portion in the axial direction of the compression roller. The end of the first contact portion has an outer diameter less than an outer diameter of the second contact portion.
Claims9
A rolling bending method for rolling a steel strip between a driving roller and a compression roller while bending the steel strip in a width direction of the steel strip, the method comprising:
- feeding, in a feeding process, the steel strip between the driving roller and the compression roller;
- compressing, in a rolling process, the steel strip by using the driving roller and the compression roller to generate a stress greater than a yield stress in the steel strip to elongate a first periphery portion of the steel strip more than a second periphery portion of the steel strip in a sending direction, the first periphery portion and the second periphery portion facing each other along the width direction;
- and sending out, in a sending-out process, the steel strip from a work space between the driving roller and the compression roller, wherein the compression roller includes:
- a first contact portion to compress the steel strip;
- and a second contact portion extending from an end of the first contact portion in an axial direction of the compression roller, and the first contact portion is conically tapered toward the second contact portion, and the end of the first contact portion has an outer diameter less than an outer diameter of the second contact portion.
Dependencies are inferred from the claim text.