Каталог Iscar токарный инструмент 2017 - страница 545

USER GUIDE Mini-Tool Features (1) øD M8; 5/16”-UN; 1/16”-NPT THREADING (2) 4H÷8H/1B÷3B (3) A 0.00 A (1) Smallest possible thread (2) All tolerances (3) Minimum runout (4) High surface quality Flank Clearance and Effective Inclination Angle Inclination angle b of the cutting edges corresponds to a specific thread helix angle l and ensures an equal clearance angle on both sides of the insert. Incorrect λ α l =α r λ α l < α r β β =0 α α α R L R α L α - Flank clearance angle l - Helix angle b - Effective inclination angle is achieved by selecting the suitable anvil Infeed Methods for Threading Operations Flank Infeed Radial Infeed Alternating Flanks Infeed 1 2 3 4 5 Flank Equal Flank Diminishing Equal depth of cut for each pass Diminished depth of cut for each pass D1/2 D 2 /2 D 1 /2 H/2 D3/2 D 2 /2 H - Depth of thread profile (on ø) Dn/2 D 3 /2 D - Depth of pass (on ø) Dn /2 D/2 Dn+1/2 U - Depth of finishing pass (on ø) U/2 D/2 U/2 D 1 D 2 D 3 D n D 1 D 2 D 3 D n D n+ 1 = = = > > > > 2 2 2 2 2 2 2 2 2 541 541