Каталог Iscar вращающийся инструмент 2017 - страница 380

USER GUIDE Thread Milling CNC Program for Internal Thread Right-hand thread (climb milling) from bottom up. Program is based on tool center. This method of programming needs no tool radius compensation value, other than an offset for wear. Do – D A = Radius of tool path A = Y+ 2 Do = Major thread diameter D = Cutting diameter Major thread Dia. General Program G90 G00 G54 G43 H1X0 Y0 Z10 S... G00 Z-(to thread depth) DO X- X+ THREAD MILLING TOOLS G01 G91 G41 D1 X(A/2) Y-(A/2) Z0 F... G03 X(A/2) Y(A/2) R(A/2) Z(1/8 pitch) D A A/2 G03 X0 Y0 I-(A) J0 Z(pitch) A/2 G03 X-(A/2) Y(A/2) R(A/2) Z(1/8 pitch) G01 G40 X-(A/2) Y-(A/2) Z0 Tool Path G90 X0 Y0 Z0 Y- Internal Thread Example: M 48x2.0 IN-RH (Thread depth 25 mm) Toolholder: MTSR0029 J30 (Cutting dia. 29 mm) Insert: MT30 I2.0ISO A=(Do-D)/2=(48-29)/2=9.5 A/2=4.75 (Tool compensation of radius=0) G90 G0 G54 G43 G17 H1X0 Y0 Z10 S1320 G0 Z-25 G01 G91 G41 D1X 4.75 Y-4.75 Z0 F41 G03 X4.75 Y4.75 R4.75 Z0.25 G03 X0 Y0 I-9.5 J0 Z2.0 G03 X-4.75 Y4.75 R4.75 Z0.25 G01 G40 X-4.75 Y-4.75 Z0 G90 G0 X0 Y0 Z0 M30 % Internal Thread External Thread Right-Hand Left-Hand Right-Hand Left-Hand Thread Thread Thread Thread A thread milling operation is applicable for thread cutting in non-symmetrical parts utilizing the advantage of helical interpolation programs on modern machining centers. 376 376 376 ISCAR ISCAR ISCAR