If want to machine congener spare parts, should make full use of the part is same the feature will shorten process designing, preparation and handling time. This is close hold one Trutron firm increases the CNC Machining business of the Troy that bring a city one of guiding ideology that manufacture efficiency; Their major makes the special type drift that connect of constant speed of front-wheel drive car uses and die tool. From 20 centuries 70 time are prime, trutron company begins to manufacture the tool of constant speed connect. The main part of this kind of tool is drift and die, make with material of high speed steel bar. Drift grows commonly 10 reach 12 inches, diameter 4 inches. Die grows 8 inches commonly, diameter 6 inches, have a 4 inches cavity. When the earliest production, after semifinished product passes rough machining and heat treatment, come with electric spark machine tool finish machining drift and die, because this company is,with report treatment begins to do poineering work. Grow as the company, process capability rose. The company began diversification production, entered aerospace field, the spare parts of treatment often is formed by a variety of different material. For spare parts of efficient production aviation, the company added machining center machine tool. Subsequently, technology of high speed milling appeared, the company begins a consideration to whether can use technology of high speed mill at machining black lead electrode, and also partake the treatment task of a few electric spark. 1998, in " Chicago international production technology is exhibited " on manager of Trutron high level and the machine tool manufacturer that reveal machining center of high speed milling and cent sold business to undertake be osculatoried extensively. Among them, to Mikelang rotate speed of company main shaft is as high as 42, 000 turn / the machining center of cent left deep impression. Before long, they bought Mi Kelang HSM700 3 axes machining center (hind expand again four-axle) , machine black lead electrode and Rockwell C hardness to amount to hard steel of 65 degrees temper by dipping in water with machine tool of high speed milling. "That is us did not use electric spark machine tool for the first time and used machine tool of high speed mill, odd handling time shortened 4 hours, " say of TimGriswold of Trutron production vice president. "This lets us realise, if can let high speed mill assume more treatment jobs, will OK the benefit with distinct creation. The Esprit software that the technical manager Mark Cohrs of Trutron company develops with DP technology company writes high speed mill machine program. Build a knowledge base the drift of all sorts of constant speed connect that to make full use of Trutron produces and die are similar this characteristic, mr Cohrs begins to build treatment knowledge base, so that can duplicate,have the block in the program, its stickup in the machine program to congener drift and die. "In machining a knowledge base, the 20 parameter that differ to 30 are worth our in store. " his explanation says. "For example, if I need to let knife chamfer process designing newly to on drift one, I need not assign these values afresh for every new drift, " he continues. "I need only from the v in the database ' drift lets knife chamfer ' file, inserted it in present program to go. " masters the drift that uses with connect of constant speed of high-speed steel of treatment of method of high speed mill and die skill adroitly as Trutron company, many treatment task begins to change direction by EDM machine tool with machine tool of high speed mill, company investment purchased machine tool of mill of the 2nd high speed, what purchase this is the machining center of vertical of axis of Mi Kelang HSM 400U 5 that an automatic tray that deserves to have 20 tray exchanges unit. Mr Griswold says, 90 ％ of company arrive the high-speed steel spare parts of 95 ％ now is treatment of machine tool of the Ke Lang that use rice. He emphasizes saying, machine speed not only with method of high speed mill fast, the treatment precision of the spare parts and consistency are better. The artificial monitoring job that the place of machine tool of high speed milling of Mi Kelang of successive on the weekend job wants is very few, an operation personnel can manage two machine tools, the machine tool can defend next moving for long in unmanned value. For example, the clamping apparatus of machining center often can secure HSM 7004 shaft many treatment spare parts, every spare parts needs the handling time of above one hour. Normally, the outfit before Zhou Wu comes off work last classes in the evening places good part, when Zhou Yi goes to work the first class, 15 parts had been machined already completely. Machining center of vertical of 5 axes high speed matchs the 2nd HSM 400U of Trutron company the workpiece tray that has 20 tray exchanges unit, still can undertake unmanned value defends treatment large part, dennis Carlson of Trutron company president states the company has fun at the process capability that continues to increase high speed mill: "We think technology of high speed mill is treatment M2, M4, M50 and other high-speed steel the effective method with simple material, accordingly, we much this kind of workpiece is machined with machine tool of high speed mill. Nevertheless, we still have the treatment job of a large number of hard alloy, still need to use treatment of our EDM machine tool, this is why we are new the forming machine of electric spark of new numerical control that added 25 unit that change a knife the reason of the bed. "The competition of this industry is very intense, we must can catch the technology that for the most significant production they want a part for the client, " he continues say. "Through using EDM and technology of high speed mill, we can offer first-rate to machine a method for the client or first-rate sets a means, satisfy client requirement. In software side, our process designing software and treatment knowledge base ensured our efficient job, also ensured we finish the job one-timely. CNC Milling