I've recently made some resources free to use to make realistic welds in keyshot. It would be interesting to see if this community could utilize it. You can find the resources here: https://gumroad.com/l/CADweld
IMPORTANT: Write in "weldme" as a discount code to download for free. I was meant to set the price to free, but the webpage wouldn't let me at the moment.
Under follows some examples of the welding and a tutorial. I suspect that many of you guys might not have access to the material graph as shown in the tutorial, but it's still doable without it. Just let me know if you find it interesting and I can cook up a short walkthrough for non-matgraph users too. I'm using NX for the tutorial, but the technique should work for SE users also.