1277 Каталог KORLOY 2020 Инструмент и оснастка для станков по металлу Стр.L17

Каталог KORLOY 2020 Инструмент для станков по металлу Стр. L17 1277 Lab2u

Turning Rake angle and the direction of chip flow Rake angle: y Side rake angle: A y: nega (-) A: nega (-) Y: Posi (+) A: nega (-) Y: nega (-) A: posi (+) Y: posi (+ A: posi (+ In order to prevent machined surface from damages Avoid nega, posicombination. y:nega (-) A:posi(+) O Selecting proper tools Nowadays, It’s very difficult to select the best tools in complicating tooling system and various cutting conditions However, It can be simplified by classifying basic factors below Selection of inserts and tool holder Listed below is the basic factors and choose B according to A A : Basic factors Workpiece material Workpiece shape Workpiece size Hardness of workpiece Surface roughness of workpiece (before machining) Surface finish required Type of lathe machine Condition of lathe machine (rigidity, power etc) Horse power of machine Clamping method of workpiece B : Selection system Select as big approach angle as possible Select as big shank as possible Select as strong cutting edge of insert as possible Select as big nose radius as possible In finishing, Select the insert using many corners Select as small insert as possible Cutting speed should be determined carefully according to cutting conditions Select as deep depth of cut as possible Select as fast feed as possible Cutting condition should be determined within chip breaker application ranges Technical Information 17