Parting Off - Selecting the Right Tool
1. Axial Relief vs Component Possibilities
Style P: 0° gives the strongest tool. Suitable with use of sub spindle. Style PS can be used for extra stability.
Style Y: 6° gives a strong tool but can leave a small chamfer if a sub spindle is not used.
Style Z: 15° is an all-round parting off insert. It can be used without a sub spindle.
Style S, U: 20-30° is a less strong tool suitable for small parts where a fine surface finish is needed.
2. Cutting Rake VS Material
0° for short-chipping materials
12° for long-chipping materials
20° for sticky long-chipping materials
3. Machining Against the Sub Spindle
Recommended inserts when part off against the sub spindle are YR, ZR and SR. For maximum stability of the part use the special toolholder WSK15EL 12Q6-2P.
4. Special Corner Alternatives
Parting off/cutoff applications sometimes demand a different kind of corner execution on the parting off/cut-off insert. WhizCut can arrange any type of corner execution. Contact your local distributor who will assist you in finding the type that best suits your needs.