L
Luke.kerbey
Guest
Can anyone that has experience with with High efficiency milling explain the relationship with ADOC and RDOC?
I’ve recently been doing a lot of pocketing/profiling on a 3axis using a 20mm indexable tip cutter and have been playing around with the axial and radial cut depths to use more of a cutting edge to get better mileage from each tip. I’ve gone one step further and found a chip thinning adjustment formula which has really ramped up the total MRR.
So far my logic is that if a cutter takes 5mm radially and 1mm axially that makes a cut area of 5mm^2. If I swap them and take a 5mm depth of cut and 1mm radially that’s the same cut area.
So my question is can I think of this strategy as a cut area? Or because I’m using different areas of cutter geometry does this have a big affect on cutting forces? Can I increase my feed and speeds by a bigger factor or should I wind it back slightly by a certain percentage, depending on the ratio of ADOC and RDOC?
If anyone has any other factors that I’ve not considered then please enlighten me, the goal is to as always balance a decent cutter life with a reasonable time. It’s mostly one off parts for extrusion tooling so time can be slightly sacrificed in favour for tool life.
If it helps explain, I’m machining primarily 1.2316 which is a 13% chrome magnetic hot work stainless toolsteel used in it is delivered condition. (No heat treat stages)
I’ve recently been doing a lot of pocketing/profiling on a 3axis using a 20mm indexable tip cutter and have been playing around with the axial and radial cut depths to use more of a cutting edge to get better mileage from each tip. I’ve gone one step further and found a chip thinning adjustment formula which has really ramped up the total MRR.
So far my logic is that if a cutter takes 5mm radially and 1mm axially that makes a cut area of 5mm^2. If I swap them and take a 5mm depth of cut and 1mm radially that’s the same cut area.
So my question is can I think of this strategy as a cut area? Or because I’m using different areas of cutter geometry does this have a big affect on cutting forces? Can I increase my feed and speeds by a bigger factor or should I wind it back slightly by a certain percentage, depending on the ratio of ADOC and RDOC?
If anyone has any other factors that I’ve not considered then please enlighten me, the goal is to as always balance a decent cutter life with a reasonable time. It’s mostly one off parts for extrusion tooling so time can be slightly sacrificed in favour for tool life.
If it helps explain, I’m machining primarily 1.2316 which is a 13% chrome magnetic hot work stainless toolsteel used in it is delivered condition. (No heat treat stages)