High-Speed Friction-Stir Welding to Enable Aluminum Tailor-Welded Blanks

被引：34

作者：

Hovanski, Yuri ^{[1
]}

Upadhyay, Piyush ^{[1
]}

Carsley, John ^{[2
]}

Luzanski, Tom ^{[3
]}

Carlson, Blair ^{[2
]}

Eisenmenger, Mark ^{[3
]}

Soulami, Ayoub ^{[1
]}

Marshall, Dustin ^{[3
]}

Landino, Brandon ^{[4
]}

Hartfield-Wunsch, Susan ^{[2
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

[2] Gen Motors Co, Warren, MI USA

[3] TWB Co LLC, Monroe, MI USA

[4] Alcoa Inc, Farmington Hills, MI USA

来源：

JOM | 2015年 / 67卷 / 05期

关键词：

FORMABILITY; SHEETS;

D O I：

10.1007/s11837-015-1384-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Current welding technologies for production of aluminum tailor-welded blanks (TWBs) are utilized in low-volume and niche applications, and they have yet to be scaled for the high-volume vehicle market. This study targeted further weight reduction, part reduction, and cost savings by enabling tailor-welded blank technology for aluminum alloys at high volumes. While friction-stir welding (FSW) has been traditionally applied at linear velocities less than 1 m/min, high-volume production applications demand the process be extended to higher velocities more amenable to cost-sensitive production environments. Unfortunately, weld parameters and performance developed and characterized at low-to-moderate welding velocities do not directly translate to high-speed linear FSW. Therefore, to facilitate production of high-volume aluminum FSW components, parameters were developed with a minimum welding velocity of 3 m/min. With an emphasis on weld quality, welded blanks were evaluated for postweld formability using a combination of numerical and experimental methods. An evaluation across scales was ultimately validated by stamping full-size production door inner panels made from dissimilar thickness aluminum TWBs, which provided validation of the numerical and experimental analysis of laboratory-scale tests.

引用

页码：1045 / 1053

页数：9

共 43 条

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