Nopers, I run a shop that repairs high end centrifugal pumps. we do just over $7 mil a year in repairs with 18 men on the shop floor. Keeps us running.
We are constantly welding on exotic metal parts to repair erosion and corrosion and general wear. When an impeller costs more than a nice 911 SC and takes 16 weeks to replace, it makes sense to weld it up and machine it