Общий каталог TooTool - страница 9

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Technical information for Threading Technical information for Threading Infeed Angle Selection And Chip Formation Typical Chip Formation Standard and slanted Anvils Infeed Angle 0 ° Benefit :Cutting edge is Y protected from chipping Negative by both sides in cut . Helix Problem : Both sides of insert are heated by the wokpiece . Produces " Vee " chips which Insert can be very difficult to handle . TTOOLTEC toolholder and boring bar pockets have a built - in 1.5 helix compensation angle. This angle may be adjusted to match the helix angle of the thread being produced by replacing the anvil. Toolholder Toolholder Infeed Angle 30 ° Benefit : Chip is curled away from thread form . Positive Helix Angles Negative Helix Angles Applicable when turning RH thread Applicable when turning RH thread with Problem : Trailing edge may with RH holder or LH thread with LH holder or LH thread with RH holder. drag rather than cut , which LH holder. may cause chipping . Infeed Angle 29 ° Anvils Benefit : Cutting edge is Resultant 0 0 0 0 0 0 protected from chipping 4.5 ° 3.5 2.5 1.5 ° 0.5 0 - 0.5 - 1.5 013 Helix Angle Holder 014 by both sides in cut . Chip is curled away from thread Insert Size Ordering Code from . Part of the heat gene - d Lmm ratedis dissipated to the ER / NL STM 16 R - 3 P STM 16 R - 2 P STM 16 R - 1P STM 16 R STM 16 R - 1 N STM 16 R - 1.5 N STM 16 R - 2 N STM 16 R - 3 N trailing edge . Final pass 9.525 16 EL / NR STM 16L - 3 P STM 16 L - 2 P STM 16 L - 1 P STM 16 L STM 16L - 1N STM 16 L - 1.5 N STM 16 L - 2 N STM 16 L - 3 N infeed angle should be 0 ° ER / NL STM 22 R - 3 P STM 22 R - 2 P STM 22 R - 1P STM 22R STM 22 R - 1 N STM 22 R - 1.5 N STM 22 R - 2 N STM 22 R - 3 N 12.7 22 EL / NR STM 22L - 3 P STM 22 L - 2 P STM 22 L - 1 P STM 22L STM 22 L - 1N STM 22 L - 1.5 N STM 22 L - 2 N STM 22 L - 3 N ER / NL STM 22 UR - 3 P STM 22 UR - 2 P STM 22 UR - 1P STM 22UR STM 22 UR - 1 N STM 22 UR - 1.5 N STM 22 UR - 2 N STM 22 UR - 3 N 12.7 22 EL / NR STM 22 UL - 3 P STM 22 UL - 2 P STM 22 UL - 1 P STM 22UL STM 22 UL - 1N STM 22 UL - 1.5 N STM 22 UL - 2 N STM 22 UL - 3 N Alternating Flank Infeed ER / NL STM 27 R - 3 P STM 27 R - 2 P STM 27 R - 1P STM 27R STM 27 R - 1 N STM 27 R - 1.5 N STM 27 R - 2 N STM 27 R - 3 N For very large thread forms 15.875 27 EL / NR STM 27L - 3 P STM 27 L - 2 P STM 27 L - 1 P STM 27L STM 27L - 1N STM 27 L - 1.5 N STM 27 L - 2 N STM 27 L - 3 N ER / NL STM 27 UR - 3 P STM 27 UR - 2 P STM 27 UR - 1P STM 27UR STM 27 UR - 1 N STM 27 UR - 1.5 N STM 27 UR - 2 N STM 27 UR - 3 N Benefit : Increased tool life 15.875 27 because both edges are used EL / NR STM 27 UL - 3 P STM 27 UL - 2 P STM 27 UL - 1 P STM 27UL STM 27 UL - 1N STM 27 UL - 1.5 N STM 27 UL - 2 N STM 27 UL - 3 N effectively. Final pass should be 0 ° d 9.525 12.7 15.875 The coolant should provided _cE LO Insert Size v cn CD £ L/ ~o 03 T3 C CD 03 L 16 22 27 = ? c X Holder ER / NL EL / NR ER / NL EL / NR ER / NL EL / NR 03 iiiiii!!!!!: :::::::: Cl) =.: i 1 CO X Ordering Code STM 16 R STM 16 L STM 22 L STM 22 R STM 27 L STM 27 R A f\ Homogeneity l\ ^ Standard anvil has lead angle 1.5 ° Fast heat removal Good surface coverage Non - corrosiveness and stability Good lubricant qualities