But the point form with dislocation mill commonly used razor blade

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Blade of cutting of negative edge pouring arris grinds action of name sketch map a horn before losing, or 0 or very small before of horn pour arris, basically use in before on horny milling cutter, action is to enhance cutting blade, reduce blade of cutting tool collapse, improve cutting tool life. Commonly used Yu Gang the treatment with large surplus, the width that pours arris is commonly (0.

5 ～ 1) feed of times every tine, before horny G01=-5 ° ～ - 10 ° . If milling takes crustaceous work impact is bigger, and when the tigidity of the machine tool and power are permitted, can use Br1=(1 ～ 2) feed of times every tine, g01=-10 ° ～ - 15 ° , or with double pour arris (graph B) . When using hard steel of temper by dipping in water of milling of razor blade of pottery and porcelain, g01=-15 ° ～ - it is better that 30 ° fight damaged sex. Blunt circle of blade of point passivation cutting, action is to enhance cutting blade, improve point quality. Blade of round cutting pounds ability than pouring arris cutting blade to fight stronger, life is taller. Rn of blunt round radius is less than feed of 1/3 every tine commonly, the Rn when light-duty cutting is about 0.

03mm, the Rn when medium-sized cutting is approximated 0.

05 ～ 0.

1mm, the Rn when heavy-duty cutting is about 0.

15mm. The chamfer that break bits machines the horn before increasing when weak data, when processing the data with tall tenacity, in the horn before increasing while also to break bits. The chamfer that divide bits improves cutting condition, reduce milling force, improve milling efficiency. It is a group with 4 razor blade commonly, finish the cutting figure of whole cutting blade. Often cooperate to use bit of chamfer of bits of the cent that blow light, apply to treatment of large surplus semifinished product. CNC Milling CNC Machining