The punty that use casting is repaired grind knife of circular arc example
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source:KAIHER CNC Machining
The punty that use casting (board) knife of long wear form, it is the method of the commonly used effective in production. It is had long grind speed the characteristic that tall, precision does not gnaw a knife when tall, cutting. Repair when grinding knife of circular arc example, the semifinished product that gives example knife is ground on preexistence emery wheel, the horn after taking 12 ° of 7 ° ～ , the part after needing than place is large 3 ° of 2 ° ～ . Go out in the car on lathe again long (the cast-iron club of 60 ～ 120)mm, its diameter should machine the diameter of circular arc for place. Get on water and emery wheel grey daub in the club next, hold example knife, the angle that masters good cutting tool and club () of the horn after needs cutting tool, with (the speed of 200 ～ 380)r/min undertakes kibble. In kibble, if discover cutting tool appearance and requirement not agree with, undertake repairing grinding to emery wheel again. After classics kibble, reoccupy (the speed of 600 ～ 1200) R/min, undertake essence of life is ground, after using example microscope, if conform to can be used. With cast-iron come abrade figuration knife, if master more adroitly, long grind an example knife, need a few minutes only. CNC Milling