I am currently welding straight butt joints without porosity, but finding excessive porosity when welding angled joints. I have tried some different combinations of parameters, but haven't solved it. I am using fibre delivered cw Nd:YAG. Any suggestions gratefully received!
I agree that you should have laser safety training as soon as possible. You will need to draw up procedures for alignment and for maintenance and servicing, so there is not just normal operation to consider.
Also - think about ventilation! The marking process will vaporise materials which can be...