The machine is up and runing it will eat soft materials but have now remachined the head to closer tollerances as i was getting some judder on mild steel. As to why 316L it has a slightly better heat resistance than the 316 and i use this material for turbine nozzle guide vane and turbine disc.
They do not last as nemonic steels but at least these i can machine.
The guides of the machine are BO1 tool steel and the head moves on phosphor bronze bushes machined to as close tollerance as possible.There is no need for any high positional speed so these bushes work fine.All moving parts are machined to a slightly tight fit and honed to size. For the stainless steels i use tungsten carbide cutters.Do you know of anyone who is in to
building such metal eaters?
Thanks for your reply |