jspivey
Aluminum
- Joined
- Nov 18, 2018
- Location
- Southern Illinois
Hello everyone,
A little bit of background. At the shop where I am employed, most of the work we do comes from various steel mills. A portion of this work is redressing the profiles of worn guide rolls from the mills. Most of these rolls are 58-60 Rc D2 or D7 steel. For these rolls we use ceramic inserts and they work very well.
However, occasionally we receive small rolls (1.5”- 2.25” OD by 1.5” long)made of titanium carbide that need to be re-dressed. The prints call out a hardness of 70-72 Rc. We rough out the wear with one corner and get one finish pass out of another before it starts to degrade. Sometimes the insert can be seen breaking down towards the end of the pass on the larger rolls. This is the case regardless of what the speeds and feeds are. This system is far from ideal, but serviceable. Grinding on the lathe is not an option.
My question is this. Is there a more suitable insert material that may better suit this task? Diamond coated inserts perhaps? I don’t know how the rolls are manufactured to begin with and google is not much help in this area. Any advice is appreciated.
A little bit of background. At the shop where I am employed, most of the work we do comes from various steel mills. A portion of this work is redressing the profiles of worn guide rolls from the mills. Most of these rolls are 58-60 Rc D2 or D7 steel. For these rolls we use ceramic inserts and they work very well.
However, occasionally we receive small rolls (1.5”- 2.25” OD by 1.5” long)made of titanium carbide that need to be re-dressed. The prints call out a hardness of 70-72 Rc. We rough out the wear with one corner and get one finish pass out of another before it starts to degrade. Sometimes the insert can be seen breaking down towards the end of the pass on the larger rolls. This is the case regardless of what the speeds and feeds are. This system is far from ideal, but serviceable. Grinding on the lathe is not an option.
My question is this. Is there a more suitable insert material that may better suit this task? Diamond coated inserts perhaps? I don’t know how the rolls are manufactured to begin with and google is not much help in this area. Any advice is appreciated.