Of the combustible magnesium alloy of the generation in cutting cut bits, drossy can pass with dust include hollow cutting tool, collet and main shaft inside vacuum aspiration system, pump arrives inside collect bits box. Spare parts of cutting magnesium alloy is the treatment operation with a dangerous very big sex. Because the melting point of magnesium alloy is very low (651 ℃ ) , in cutting, of generation also be as high as 500-600 ℃ cut bits to splatter, make handlers is in the treatment below unsafe condition. Of together with high temperature drossy with dust and cooling fluid medium fat dose mixes, cause inflammation very easily, have a bit inadvertent (handle undeserved) , will cause fire accident to happen. It is normally in cutting process, the processing cutting bits that the requirement will produce certainly is good, will drossy with dust, rapid processing gives treatment spot. Use commonly shade of a segregation is added before cutting tool, prevent to cut bits chaos to fly, will drossy sweep in time clean with dust. The company with good condition, use vacuum cut bits, drossy arrive from cutting area pump with powder inside collect bits box, undertake clearing next. Carry out a proof through long treatment, use dry type cutting or use minimum to lubricate (MQL) fluid refrigeration and the method that photograph of method of use vacuum aspiration combines, can better collection cuts bits, cancel to sweep drossy the working program with dust. But, add the vacuum on the machine tool will give the high speed campaign that changes knife and machine tool to cause inconvenience. Although fat dose cooling fluid decreases, but still cannot cancel completely, the hazard that causes fire accident so still exists. Mix additionally in fat dose cooling fluid drossy also cannot reclaim again with dust use, still need to pay the fee that sends processing of person specially assigned for a task additionally so. Recently, spain amounts to Nuobate (the IDEKO institute that Danobat) group place belongs to, to satisfy the market need of spare parts of magnesium alloy of high speed cutting, with cooperation of much home company new development goes the new treatment method of a kind of on the safe side. And among them core technology is to design to be able to include hollow cutting tool, collet and main shaft inside system of new-style vacuum aspiration, seasonable, efficient, will cut thoroughly bits and drossy arrive with dust pump inside the collect bits box of a larger space. Be this is added with cooling fluid fix the aspiration system with opposite way, make the high speed cutting of magnesium alloy becomes safety, reliable. In new vacuum aspiration system, the most crucial part has collet of the new structure cutting tool of special design, cutting tool. New-style cutting tool is designed hollow model cutter hub and the head of hard alloy knife that have special geometry figure. Provide function of the interpolation inside some circular arc through using CNC system place, the cutting that controls cutting tool moves, the has bits, directional control to cut bits to eliminate directional function cutting blade that goes out with the design is collective action, produce what the volume that give breaks off small and easily to cut bits, the collection that makes magnesium alloy cuts bits consequently and eliminate to become fast, easy. In this system design, cutting tool collet chose HSK knife to place configuration, with know effect of cooling fluid of large flow high pressure identical, those who be helpful for cutting bits is successful eliminate. Disclose according to IDEKO company, use this system to be able to eliminate cutting magnesium alloy in time to cut the 95 % of bits. In the meantime, return pair of this systems whether use at other material, for example aluminium alloy treatment, undertook experimenting study, the result makes clear, should handle the crucial issue of overall situation of good influence system only, for example, use can produce a bulk to break off smally, easily the cutting tool that cuts bits, system of new-style vacuum aspiration can be used in treatment. CNC MillingCNC Machining