I have a situation where I need to apply a torque value to a fillet weld. The material is 5mm mild steel and it's a 5mm fillet welded on one side using the GMAW process with 0.035 wire size. My company wants to attempt to apply a torque value as a response to a weld failure that occurred at the customer's facility. My opinion has been that the welder didn't get proper penetration due to the angle of his gun. To me, it's visually evident and it was only one piece of many produced that failed. I understand the customer's response - they're paying us to provide a quality product every time, not just some of the time. So, as a response, we want to apply a torque value to this specific part (& similar parts), but I don't know where to begin looking for such numbers. Any ideas?
This is something that sounds like it should be handed off to an engineer to analyze. An engineer should have no difficulty determining the nature of the loads, the unit stress for the weld, and the required weld size.
Best regards - Al