About this Abstract |
Meeting |
2020 AWS Professional Program
|
Symposium
|
2020 AWS Professional Program
|
Presentation Title |
Integrated Modeling of Multi-process Automotive Lap Joining – Part 3: Microstructure and Mechanical Properties
|
Author(s) |
Eric Brizes, Tim Abke, Hassan Ghassemi-Armaki, Antonio Ramirez |
On-Site Speaker (Planned) |
Eric Brizes |
Abstract Scope |
In the automotive industry, conventional resistance spot welding (RSW) is being combined with newer joining techniques like friction element welding (FEW) to mitigate the metallurgical challenges associated with welding aluminum to high strength steel. When designing these multi-process lap joints, it is important to consider how the offset in the position of the two welds will affect the final mechanical performance. The large number of experiments required to optimize multi-process joints is costly and could be significantly reduced using an integrated modeling framework that could predict the joint performance of many different processes and materials. The goal of this research is to develop a modeling framework for predictive simulation of the RSW/FEW three-sheet multi-stack static mechanical performance that is scalable for the future integration of new processes, materials, joint designs, and software. Tasks to be discussed include: modeling phase transformation and martensite tempering in ultra-high strength steel, and building the relationship between microstructure and mechanical properties using Gleeble tempering experiments and instrumented nanoindentation. It is anticipated that the fully developed integrated modeling framework will be used as a joint optimization and decision-making tool for design engineers in the automotive industry that have limited knowledge of weldability. |
Proceedings Inclusion? |
Definite: Other |