Back to results
US 12,011,756 B2Granted
Method for manufacturing press-molded article
AssigneeKobe Steel, Ltd.
InventorsKazuki Sakamoto, Kenichi Watanabe, Dongyong Shi
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a press-molded article includes: preparing a patchwork blank in which a thickened portion is formed by welding patchwork to basework; bending only the thickened portion of the patchwork blank; and bending a portion other than the thickened portion in a step different from bending of the thickened portion.
Claims9
A method for manufacturing a press-molded article, the method comprising:
- preparing a patchwork blank in which a multi-layer thickened portion is formed by layering a main surface of a plate-shaped patchwork on a main surface of a plate-shaped basework and welding the patchwork to the basework;
- bending only the thickened portion of the patchwork blank using a press molding apparatus including a first mechanism configured to bend only the thickened portion;
- and
- bending a portion other than the thickened portion in a step different from bending of the thickened portion using a second mechanism different than the first mechanism;
- wherein the first mechanism is driven in a first direction to apply a press load in the first direction to the thickened portion, and
- wherein the second mechanism is driven to apply a press load in a direction inclined from the first direction to the portion other than the thickened portion.
3 more elements
A method for manufacturing a press-molded article, the method comprising:
- preparing a patchwork blank in which a thickened portion is formed by welding patchwork to basework;
- bending only the thickened portion of the patchwork blank;
- and
- bending a portion other than the thickened portion in a step different from bending of the thickened portion,
- wherein
- bending the patchwork blank comprises using a press molding apparatus including a first mechanism configured to bend only the thickened portion and a second mechanism configured to bend the portion other than the thickened portion,
- the first mechanism is driven in a vertical direction to apply a press load in a vertical direction to the thickened portion, and
- the second mechanism includes a cam mechanism that converts a press load in a vertical direction of the first mechanism from a vertical direction to an inclined direction, and causes the cam mechanism to be driven in a direction inclined from a vertical direction to apply a press load in a direction inclined from a vertical direction to a portion other than the thickened portion.
5 more elements
Dependencies are inferred from the claim text.