现代模具制造英文文献和翻译(4)
The technology selecting and using the domestic cutter，seldom having the bright metal recommending high speed to chop parametric，is necessary making an experiment, get the comparatively satisfied parameter，produce a manufacturer had better to select and use the fixed cutter，cut down the number of times testing that，the standard forming a processing technology, such can improve effective utilization ratio of equipment，lowers production costs，can get the fairly good economic effect.
Five，quick-cutting route processing a cutter and programming
1) flat surface feeds the route choice
2) outlines process the route choice
3) Keep cutting loading stable
4) keeps relatively stable moving forward giving amounts and feed speed
5) keeps the garden comer in flat surface cutting
6) chooses the finish machining margin rationally
Programming demand of HSC finish machining to CAM:
1) the bright metal avoiding a corner to the full cuts motion;
2) tries one's best to avoid external feed of workpiece and enter next depth return knife motion，direct from the outline. Or adopt a helical line or being sure enter slanting to moving forward;
3) constant each edge feed，improve the quality, prolongs cutter life-span;
4) outline treating are kept waiting in level surface.
Quick-cutting CAM software:
Several years ago will have started quick-cutting processing programming technology research, the Delcam company , has developed the quick-cutting automation programming software module; Lately, the MasterCAM company has also developed the quick-cutting automation programming software module; You also are in in the homeland north navigation developing the quick-cutting automation programming software module;
Six, high-speed machine tool numerical control system characteristic
1) high speed data is processed
2) corner forecasts are handled
3) NURBS are not justified appearance strip runin curve treating
Seven, safe quick-cutting mould problem
1) Monitoring wearing a cutter away and destroying;
2) Intensity that the bit links;
3) Strict with the machine tool and the cutter examination is very important and before the average machine tool processing persity，safety protects and starts up.
Eight, there exists problem in our country at present in adopt high speed to process the mould technology
1 machine tool:
1) domestic high-speed machine tool overall function still has the gap，the function component function to be able to not satisfy a request. Power and rotation rate including the electricity chief axis, entrance machine tool price is high;
3) Under the machine tool high speed，the dynamic behaviour studies the function being not enough to affect a complete machine as a result,;
The five scroll of machine tool is not enough mature，entrance machine tool price is very high;
4) supporting technology and equipment are fairly incomplete
2 cutters:
1) domestic cutter is not able to adapt to the quick-cutting application , high speed cuts only entire treating especially stiffly. Entrance cutter price is high. The cutter technology is to affect quick-cutting processing a key factor of mould.
2) supporting technologies are not enough to include hilt，online dynamic balance in complete set etc..
3 high speed moulds process the technology and the experiment
1) Be short of the accumulation applying experience since high speed processes the mould history comparatively shortly;
2) The comparison studying comparison stops throwing into lack, sets up a project to quick-cutting handicraft is difficult;
3) Be short of the quick-cutting data base or the handbook，is still blank space at present;
4) moulds produce the manufacturer cognition lack to quick-cutting，the analysis contrast being short of long range beneficial result;
4 Be short of the quick-cutting automation programming software;
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