Trouble with HSS tool being destroyed by mild steel - Printable Version +- MetalworkingFun Forum (http://www.metalworkingfun.com) +-- Forum: Machinery (http://www.metalworkingfun.com/forum-10.html) +--- Forum: Lathes (http://www.metalworkingfun.com/forum-11.html) +---- Forum: Lathe Tooling (http://www.metalworkingfun.com/forum-19.html) +---- Thread: Trouble with HSS tool being destroyed by mild steel (/thread-3597.html) |
Trouble with HSS tool being destroyed by mild steel - Dan Boy - 06-18-2017 I have a custom made HSS tool from a piece of regular 10mm2. I have been careful to make sure the tool height is correct. It is a radius tool so there is not a sharp point to it yet when it comes into contact with the steel, the steel eats it away like it is made of plastic. I'm sure I am doing something very basic here but I just can't see what is wrong. Does anyone have any suggestions? Thanks, Dan. RE: Trouble with HSS tool being destroyed by mild steel - Dan Boy - 06-18-2017 Here's a pic of the broken tool steel. RE: Trouble with HSS tool being destroyed by mild steel - TomG - 06-18-2017 Three possibilities: Your tool is not HSS, your work is not mild steel, or the cutting speed is way too high. This would only make for a rough finish, but I don't see any side clearance on the tool. Check out the reference section on my website for proper clearance angles. Tom RE: Trouble with HSS tool being destroyed by mild steel - Mayhem - 06-19-2017 (06-18-2017, 04:26 PM)TomG Wrote: ...Check out the reference section on my website for proper clearance angles... I thought those angles only related to oversize cutter made from wood RE: Trouble with HSS tool being destroyed by mild steel - TomG - 06-19-2017 (06-19-2017, 06:13 AM)Mayhem Wrote: I thought those angles only related to oversize cutter made from wood RE: Trouble with HSS tool being destroyed by mild steel - Dr Stan - 06-19-2017 (06-19-2017, 06:13 AM)Mayhem Wrote:(06-18-2017, 04:26 PM)TomG Wrote: ...Check out the reference section on my website for proper clearance angles... That only applies to the upside down part of the world. RE: Trouble with HSS tool being destroyed by mild steel - wawoodman - 06-19-2017 (06-19-2017, 10:31 AM)Dr Stan Wrote:(06-19-2017, 06:13 AM)Mayhem Wrote:(06-18-2017, 04:26 PM)TomG Wrote: ...Check out the reference section on my website for proper clearance angles... But then the relief angle is on the wrong side. |