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EWI’s New Method to Create Spot Weld Performance Databases for BIW Stack-ups

April 9, 2024

The integrity of joints (“stack-ups”) in vehicle frames is of utmost importance when it comes to safety, dependability, and public confidence in the automotive industry. But with up to a hundred joint variations in a car’s body-in-white, it is difficult to predict joint strength properties without extensive testing.

Until now. EWI has developed a rapid way to construct performance databases for resistance spot welds that reduces the volume of testing needed by almost 99%. This innovative approach is discussed in A New Design of Experiments Mapping Strategy to Create Spot Weld Performance Databases by EWI associates Olga Eliseeva and Jerry Gould.

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