Many years ago I worked in a shop that used metalizing for building up worn shafts for remachining. I recall that it seemed successful but really it was not. You could build up quite a good thickness and then turn it back to size sometimes finishing off with grinding. The problem was that it was not durable; these were big shafts from mine and mill equipment and very heavily loaded. The metalizing did not seem to get a good enough bond and would flake off under the bearings. I think it might be possible you will get a similar effect in molds. Maybe not in your case because you are dealing with blow molds not injection molds so your clamping forces are not as high. |