329 Каталог KORLOY 2016 Металлорежущий инструмент и станочная оснастка ENG Стр.D4

Каталог KORLOY 2016 Инструмент и оснастка Стр. D4 0329 ENG Lab2u

D Technical Information for Threading Thread Turning Method Thread Inserts & Tool holder Rotation Feed Direction Helix Method Drawing No. Right Hand Externa EX RH Counter clockwise Towards chuck Regular m EX LH Clockwise From chuck Reversed Right Hand Internal IN LH Counter clockwise Towards chuck Regular H3I IN LH Clockwise From chuck Reversed M'l Left Hand External EX LH Clockwise Towards chuck Regular HI EX RH Counter clockwise From chuck Reversed Left Hand Internal IN LH Clockwise Towards chuck Regular IN RH Counter clockwise From chuck Reversed External RH Thread Internal RH Thread External LH Thread Internal LH Thread D Calculating the Helix Angle(p) The helix angle is calculated by the following formula P = tan P xN n xD P - Helix angle(°) P - Pitch(mm) N - No. of starts D - Pitch diameter(mm) Lead = P x N The helix angle can also be found from the diagram below Threading Feed towards the chuck Standard iff helix angle 1.5' Standard toolholder pocket angle Shim Feed towards the tailstock Reversed -0 helix angle 1.5" Standard toolholder pocket angle Shim The dimension H1 (cutting edge height) remains constant with every insert / shim combination Pitch P mm 12 11 10 Helix Angle Diagram 8=2- r 7" T_ 7 Z iSc iecic il J j z 7 f Toolholders 71 r / P w 7/ Z_ 7 / W _j J 7 / / - 7) / / / / ft z / / 7 / / jt / / 7" / y Jiam eter mr i 2C 0 5 0_ 10 I0 I 150 7 \ \ x \ \ \ \ V \ v N \ \ \ \ - Si aeci al Ti DOlhi olde rs \ \ 7 Pilch P tpi 9 = 1. >2.25 2.5 = -2‘ 3 3.5 4 4.5 5 11 IS 24 0 = 0° 24 It 11 5 4.5 4 3.5 2.5 2.25 8= 1' For Multi-start threads, use the lead value instead of the pitch 4