1771 Каталог MITSUBISHI 2020 Режущий инструмент Фрезы Резцы Сверла Пластины Стр.R019

Каталог MITSUBISHI 2020 Режущий инструмент для станков Стр. R019 1771 Lab2u

THREADING DEPTH Features Advantages Disadvantages 9 Easy to use. (Standard programme for threading.) 9 Superior resistance to vibration. (Constant cutting force.) 9 Long chips generated during the final pass. 9 Complex calculation of cutting depth when changing the number of passes. 9 Reduced load on corner radius during the first half of the passes. 9 Easy chip control. (Optional setting of chip thickness) 9 Easy to calculate cutting depth when changing the number of passes. 9 Good chip control. Subject to vibration in the later stages of cutting. (Increased cutting force) In some cases, changing the NC programme is necessary. It is recommended to set the depth of cut of the final pass to 0.05mm 0.025mm. Large cutting depths can cause vibration, leading to a poor surface finish. I FORMULAE Formulae to calculate infeed for each pass in a reduced series. Aapn: Depth of cut n : Actual pass ap : Total depth of cut nap : Number of passes b :1st pass 0.3 2nd pass 2 1 = 1 3rd pass 3 1 = 2 nth pass n 1 (Example) External threading (ISO Metric) Pitch : 1,0mm ap : 0.6mm nap :5 passes 1st Pass Aapi 2st Pass Aap2 3st Pass Aap3 4st Pass Aap< 5st Pass Aaps 0.60 a/5-1 0.60 V 5 1 0.60 a/5-1 0.60 V 5 1 0.60 V 5 1 V 0.3 =0.16 >0.16 (Aapi) x 2 1 = 0.3 > 0.14 (Aaps Aapi) x a/3 1 = 0.42 > 0.12 (Aap3 Aap2) x 4-1 = 0.52 -> 0.1 (Aapi-Aaps) x - 5 1 = 0.6 > 0.08 (Aaps Aap4 NC PROGRAMME FOR MODIFIED FLANK INFEED % Example) M12x1.0 5 passes modified 5° External Threading Internal Threading GOO Z = 5.0 GOO Z = 5.0 X = 14.0 X = 10.0 G92U-4.34 Z 13.0 F1.0 G92 U4.34 Z 13.0 F1.0 GOO W 0.07 GOO W 0.07 G92U-4.64 Z 13.0 F1.0 G92 U4.64 Z 13.0 F1.0 GOO W 0.06 GOO W 0.05 G92 U 4.88 Z 13.0 F1.0 G92 U4.84 Z 13.0 F1.0 GOO W 0.05 GOO W 0.04 G92U-5.08 Z 13.0 F1.0 G92 U5.02 Z 13.0 F1.0 GOO W 0.03 GOO W 0.03 G92 U 5.20 Z 13.0 F1.0 G92U5.14 Z 13.0 F1.0 GOO GOO R019 TECHNICAL DATA