It depends on the joint. Micro laser welding delivers a tightly focused beam, so welds can be very small and narrow with minimal heat spreading into the part. It works well when pieces fit together tightly and you need precise placement. Micro TIG usually works better when you need to add filler material or when the joint isn't a perfect fit. Many shops, including Micro Weld Inc., offer both, so the choice can be made on your part rather than on the equipment available.