公开(公告)号：US09783865B2

公开(公告)日：2017-10-10

申请号：US14256045

申请日：2014-04-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K. Sachdev ,  John E. Carsley ,  Stuart J. Brown ,  Louis J. Conrad

IPC: C21D8/02 ,  C22F1/04 ,  C22F1/00 ,  C21D9/46 ,  C21D1/18 ,  C22C21/00 ,  C22C38/00 ,  B62D29/00 ,  C21D9/52 ,  C22C21/12 ,  C21D7/02 ,  C21D7/13 ,  C21D1/673

CPC classification number: C21D8/0263 ,  B62D29/007 ,  C21D1/18 ,  C21D1/673 ,  C21D7/02 ,  C21D7/13 ,  C21D9/46 ,  C21D9/52 ,  C21D2211/002 ,  C21D2211/008 ,  C22C21/00 ,  C22C21/12 ,  C22C38/00 ,  C22F1/002 ,  C22F1/04

Abstract: A thermal-assisted method deforms plastically a high-strength material using a high-intensive heat source. The high-strength material may be a cold-rolled sheet aluminum of strength greater than 300 megapascal (MPa) or a cold-rolled sheet steel of strength greater than 1000 MPa. The cold-rolled sheet metal is heated just before bending to a temperature near or above the critical temperature for the material and is followed by rapid quenching after bending.

公开(公告)号：US20150314363A1

公开(公告)日：2015-11-05

申请号：US14266109

申请日：2014-04-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark A. Nelson ,  Louis J. Conrad

IPC: B21D53/88 ,  B23K11/00 ,  B23K11/11

CPC classification number: B21D53/88 ,  B21D22/20 ,  B21D35/007 ,  B23K11/002 ,  B23K11/11 ,  B23K11/115 ,  B23K26/22 ,  B23K26/32 ,  B23K2101/006 ,  B23K2101/185 ,  B23K2103/10 ,  B23P15/00

Abstract: A method of forming a vehicle body structure includes pre-welding a patch blank to a base blank with a series of resistance spot welds to form a pre-welded blank assembly. After pre-welding, the pre-welded blank assembly is deformed into the vehicle body structure. The deformation of the pre-welded blank assembly is carried out by a suitable metalworking process, such as stamping, and results in concurrent deformation of the base blank and the patch blank. Following deformation of the pre-welded blank assembly, additional weld joints may optionally be formed between the base blank and the patch blank, wherever desired, to better secure the blanks together.

Abstract translation: 一种形成车体结构的方法包括用一系列电阻点焊将预焊接到坯料上以形成预焊焊接组件。 在预焊之后，预焊毛坯组件变形成车体结构。 预焊毛坯组件的变形通过合适的金属加工方法进行，例如冲压，并导致基坯和补片坯料同时变形。 在预焊接坯料组件变形之后，可以任意地在基板坯和补片坯料之间形成额外的焊接接头，以便更好地将坯料固定在一起。

公开(公告)号：US20150299818A1

公开(公告)日：2015-10-22

申请号：US14256045

申请日：2014-04-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K. Sachdev ,  John E. Carsley ,  Stuart J. Brown ,  Louis J. Conrad

IPC: C21D8/02 ,  C22F1/00 ,  C21D9/46 ,  B60R19/03 ,  C22C21/00 ,  C22C38/00 ,  B62D29/00 ,  C22F1/04 ,  C21D1/18

CPC classification number: C21D8/0263 ,  B62D29/007 ,  C21D1/18 ,  C21D1/673 ,  C21D7/02 ,  C21D7/13 ,  C21D9/46 ,  C21D9/52 ,  C21D2211/002 ,  C21D2211/008 ,  C22C21/00 ,  C22C21/12 ,  C22C38/00 ,  C22F1/002 ,  C22F1/04

Abstract: A thermal-assisted method deforms plastically a high-strength material using a high-intensive heat source. The high-strength material may be a cold-rolled sheet aluminum of strength greater than 300 megapascal (MPa) or a cold-rolled sheet steel of strength greater than 1000 MPa. The cold-rolled sheet metal is heated just before bending to a temperature near or above the critical temperature for the material and is followed by rapid quenching after bending.

Abstract translation: 热辅助方法使用高密度热源塑造高强度材料。 高强度材料可以是强度大于300兆帕（MPa）的冷轧板铝或强度大于1000MPa的冷轧钢板。 将冷轧金属板在弯曲前被加热到接近或高于材料的临界温度的温度，然后在弯曲之后快速淬火。