New Paper — Vehicle Electrification: Analysis of Current Challenges

Laser-welded blanks offer many advantages in automotive closures and structures, but base-material necking and cracking can be an issue. To provide better data for FE simulation modeling, EWI has developed a “mini-dogbone” tensile test for LWB formability evaluation. Hyunok Kim, EWI Forming Center Director, describes this work in Evaluating Laser-welded Blank Formability and Predicting Potential...

The increasing use of AHSS and aluminum alloys for lightweighting automotive structure necessitates a highly accurate prediction model for springback. Recently, EWI devised a cyclic tension-compression test method to qualify a new prediction model. This work is described in Cyclic Tension-compression Testing for Kinematic Hardening Material Models written by EWI Applications Engineer Laura Zoller. You...

Low force friction welding, the robust joining process that combines friction welding and an external heat source, has been validated for metals including steels, aluminum alloys, copper, and more. Recent studies have demonstrated its great potential for titanium alloys as well. Application of Low Force Friction Welding to a Ti-6AL-4V Alloy, written by EWI Senior...