The methodological cardinal principle of the turning echelon whorl of numerical control lathe and turning triangle whorl is similar, just because the tooth is tall deeper, the radial cutting power of lathe tool of whorl of factory of numerical control lathe is greater, so, in turning pitch thick lathe tool and lathe tool of essence of life are used to have rough machining and precision work respectively more when bigger echelon whorl. And echelon whorl has low speed cutting and high speed cutting two kinds of methods. (: of whorl of echelon of cutting of 1) low speed? Qu of of the sew that jump is fine? of lukewarm Yan of Dang knocking at a grandma and in make repairs and supply replacements or sheet when production, often use the method of low speed cutting. When cutting pitch is less than the echelon whorl of 4mm, can use a lathe tool only commonly, use take a way continuously and use a few or so feed, build whole lathe tool again after thick car, have finish machining take shape. When turning pitch when bigger echelon whorl, to avoid 3 cutting blade to participate in cutting at the same time generation is oscillatory, answer to use thick lathe tool first, use the feed fashion that controls the standard that drive a knife to undertake renting a car. Factory of numerical control lathe is in after assuring tooth height, use lathe tool of essence of life again undertake into the law; of finish machining figuration is become continuously when pitch is very big, the horn before using radial is 0, two side grind the lathe tool of essence of life that has a bits chamfer, the machine tool of numerical control of whorl of echelon of methodological fine vehicle that uses the left and right sides to drive a knife is dustproof cover. (: of whorl of echelon of cutting of 2) high speed? Lei enlighten Gou behead takes of ⒕ sew Peng post knocks at lathe tool of whorl of usable hard alloy of? of analyse of grandma Dang lukewarm Yan to undertake high speed cutting. When using cutting of this kind of lathe tool, because 3 cutting blade participates in cutting at the same time, meeting generation is banding cut bits to pour out of, the operation is very insecure. For this, can use lathe tool of whorl of factory of numerical control lathe. Lathe tool of this kind of whorl grinds two circular arc that give semmetry in front, make diameter forward horny Y. Increase. Face of the knife before two circular arc still make shows plant of numerical control lathe 3. ~5. fastigium shape structure. This kind of lathe tool can reduce cutting force, increased the strength of lathe tool, reduced cutting vibration thereby. Factory of numerical control lathe is formed at the same time bulbiform cut bits, make a bits smooth. Today’s introduction arrives here, my company weighs responsibility, negotiate credit, the choice welcomes new old client to patronize, the client’s satisfaction is our lasting and changeless pursuit!