1280 Каталог KORLOY 2020 Инструмент и оснастка для станков по металлу Стр.L20

Каталог KORLOY 2020 Инструмент для станков по металлу Стр. L20 1280 Lab2u

Milling O Milling cutter shape and designation Hiamptpr nf n ittpr hnrh/ Back ring Approach angle Height of cutter Chip / Screw for pocket angle wedge Diameter of cutter Face relief Cutting edge inclination angle Radial relief angle Locater Setting ring Face angle Minor Major cutting edge Chamfer AR: Axial rake angle (-90° AR 90°) RR: Radial rake angle (-90° RR 90°) AA: Approach angle (0° AA 90°) TA: True rake angle (-90° TA 90°) I A: Cutting edge inclination angle (-90° IA 90°) FA: Face angle (-90° FA 90°) The terminology and functions of cutting edge angle No. Tool failure Symbol Function Effects 1 Axial rake angle A.R Chip flow direction, Adhesion Positive: Excellent cutting, built-up edge prevented 2 Radial rake angle R.R Affecting on thrust Negative: Excellent chip control 3 Approach angle A.A Chip thickness, Determines flow direction (+): Chip thickness become thinner, cutting force could be reduced 4 True rake angle T.A Effective rake angle (+): Better cutting. Preventing adhesion, Weakening cutting edge strength ( ): Cutting edge strength increases, easy to adhere 5 Cutting edge inclination angle I.A Determines chip flow direction (+): Good chip flow, cutting force could decreases, Comer edge strength weakens 6 Relief angle F.A Controlling cutting edge strenght, tool life and chattering Surface roughness increases as F.A gets close to 0 degree Technical Information 20