Imperceptible milling and technology of cutting of imperceptible car mill

1 μ M, these all are the technical place such as craft of MEMS technology and photoetching of deepness of ray of synchronous radiate X, LIGA not as good as. Current, imperceptible cutting processing technique can use cutting cutting tool, to including a metal inside all sorts of but cutting material has imperceptible treatment, and still can use CAD/CAM technology to realize process designing of three-dimensional numerical control, almost OK and contented aleatoric and complex curved surface and the treatment that exceed hard data ask. With method of certain non-traditional machining (be like electric spark, supersonic treatment) photograph comparing, imperceptible cutting treatment has quicker treatment speed, lower finished cost, better treatment is flexible with taller treatment precision. W of model of imperceptible milling force.

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Bao and I.

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The model of analyse of uptake of imperceptible milling cutting that Tansel[3] offerred to consider cutting tool to beat the circumstance falls. Because every age when feed and percentage of cutting blade radius are very large, the hypothesis that makes to cutting bits ply place and model of traditional cutting force [the photograph of 4] is very older than change, accordingly they go up in the foundation of this model, the change cuts the computational method of bits ply, reckon according to contrail of point of a knife cutting ply is worth namely, make cutting force model more mathematical thereby. The cutting force expression that its offer used 8 parameter (be like main shaft rotate speed, feed, cut cut a horn to wait) with a material that concerns with workpiece with cutting tool coefficient, this coefficient needs to undertake ability decides experimenting. Because cut bits ply to be opposite in imperceptible Che Xi the impact of cutting force is very big, g.

Newby [5] also is opposite considering cutting blade contrail the influence of the ply that cut bits, they are in W. Y. Bao and I. N. Model of cutting strength experience is built on the foundation of Tansel. M.

T.

Zaman [the size that 6] estimates cutting force according to cutting bits area theoretically. Compare with traditional milling photograph, the length that participates in cutting treatment in blade of the cutting in imperceptible Che Xi should grow relatively, because helix angle of this cutting tool is in the cutting force form that imperceptible car mill processes,have crucial effect, can produce considerable cutting power on axial. I.

S.

Kang [7] is in be based on Tlusty and model of force of MacNeil traditional cutting [on the foundation of 5] , studied the edge radius effect to cutting force, in bringing into its cutting force model. Bong-Cheol Shin [8] put forward to use acceleration sensor and newest suddenly Er sensor to come the method of force of indirect measurement cutting. Go up in the accurate and mechanical workbench that contains high speed main shaft had a series of tests, obtained remarkable positive result. Imperceptible milling cutter and its coating are in imperceptible milling, cutting tool is the important parameter that affects treatment precision, be in early 1997 I.

The person such as Tansel [the point of view that 9] had offerred to use intelligent work clamp to prolong cutting tool life. A.

The person such as Aramcharoen [10-11] had thorough research to cutting tool coating, undertake contrasting analytic to macroscopical dimension milling and imperceptible milling. E.

Uhlmann [12] is used finite yuan emulate, designed new small establish milling cutter, those who analyse milling cutter is dynamic carry on one's shoulder and meet an emergency, undertake optimizing to its, the hardness of cutting tool of tool steel small milling that develops finally achieves 62HRC. Jan Gabler and Sven Pleger[13] used cutting tool of coating of diamond of small accurate CVD, discover diamond coating can increase to leave the property of cutting cutting tool in micron class size greatly. Consider the dimension effect of small mill cutting tool, fuluolida the I of international university.

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Tansel [14] wore away to define newly to the cutting tool in small milling: The loss of cutting tool material, the deposit of material of workpiece of little grain of cutting tool surface or the change that are appearance of cutting tool deflection. Combine American aeromechanics to study the expert of the lab, supervisory system of genetic cutting tool was developed again on the foundation that the expert of international university is in Fuluolida to consider formerly to discover [15] . In addition, 2008, the scholar of Singapore was developed use invisible the system of condition of cutting tool of small milling of Markov model monitoring [16] . As a result of Markov model identify sexual characteristic quickly, make its model better to the rash club sex of noise, pass experiment discovery, this system reached higher level to the identifying of cutting tool condition. Be aimed at the distinction of small milling and traditional milling, learned men are the radius of the dimension effect in small milling, small edge, youngest the respect content such as effect of cutting ply, attrition and exterior surface roughness did thorough research [16] , analyse its behavior and mechanism, build mathematical model, undertook test and verify through extensive trial. Cutting of mill of Nextpage imperceptible car is imperceptible car mill cutting is a kind of when be based on car mill principle advanced production technology. Car mill treatment is not the simple combination of the turning on common sense and milling function. It is the cutting treatment task that the synthetic campaign that uses milling cutter to rotate with workpiece will come realize swing tower workpiece, achieve convention " turning " purpose, make workpiece is in appearance precision, position precision, already machined the many sided such as exterior integrality to achieve use requirement [17] . Car mill treatment includes milling cutter to rotate, workpiece rotates, feed of milling cutter axial and radial feed 4 radical movement. The whirligig of milling cutter is advocate cutting moves, cutting speed and workpiece diameter did not concern, mix with milling cutter diameter only closely related milling cutter rotate speed. Workpiece rotates is to cooperate the Fancheng that swing tower surface is machined and does to move, do not grant to consider commonly to the influence of cutting speed, it basically is opposite the feed speed in machining a process produces an effect. Accordingly, can discover from cutting principle, in process of car mill treatment, no matter be added workpiece diameter is much smaller, the rotate speed that wants milling head only has enough wide span, with respect to the normal cutting treatment that can implement small part. No matter still be in productivity on quality of treatment workpiece surface, technology of cutting of imperceptible car mill has very large dominant position otherer technology. Among them a very significant advantage depends on it can installing the treatment that intricate to appearance work completes in clip in, and finish and a taller treatment precision can be offerred inside shorter time. This applies to the high speed cutting of milling cutter especially, not only can improve productivity, and also rose to machine precision. The university began university of industry of German A go smoothly and Kaersilue to quench the cutting of imperceptible car mill of steel and duralumin material studies in recent years, the accurate small small-sized milling machine that university of be stranded of Si Lu blocking Er and Benz factory collaboration developed on the world first rotate speed to be 16000r/min, in order to machines small small-sized mould, came true to machine small part with small device high speed. Fulangenhuofu the problem that the academy reveals in the light of place of big machining spare parts, developed system of small small-sized treatment in recent years the research of relevant technology, successful already development goes prototype of principle of system of small small-sized treatment [18] . Some closer year come, college of Shenyang grain industry is machined in imperceptible milling and respect of technology of cutting of imperceptible car mill began a few research. The cutting that finished steel of mould of imperceptible milling AISI D2 on tiny milling machine tool experiments, studied each cutting parameter is right the influence degree that already machined exterior form appearance and cutting force and metabolic trend. The result makes clear, every tine feed is bigger to exterior form appearance and cutting power influence, and axial cutting deepness and take second place of cutting speed influence. In imperceptible milling workpiece apparently because plasticity is out of shape,the tiny prominence of a generation is imperceptible burr [19-20] . College of Shenyang grain industry finished the research that machine tool of cutting of imperceptible car mill designs linkage of four-axle of WCH-I numerical control and develops on the foundation of Che Xi processing technique. Rotate speed of main shaft of its pneumatic milling is 150000r/min, aim to realize high speed small small-sized and long and thin axis mixes cutting of imperceptible car mill have complex model the small small-sized part of the face. With large and medium-sized exceed photograph of accurate machine tool to compare, this machine tool has bulk to control treatment environment, cost smally, easily low characteristic. The turning method that Beijing manage is versed in the university uses a convention and advanced car mill method undertook the cutting of imperceptible axis machines an experiment, check considers to be in what design independently to have structural advantage and treatment distinguishing feature " small small-sized Che Xi is compound machining center " aspirant travel. The treatment that uses this one technology at small small-sized part above all [21] . This center can finish car, mill, boring independently, grind, get cut job, the Che Xi that still can come true to have distinguishing feature alone at the same time machines a function, from go up at all the issue with the too small linear velocity when solving turning, can realize imperceptible axis kind the cutting treatment with normal part is machined to high speed cutting very [22] . Additional, harbin Institute of Technology [university of aerospace of 23-24] , Nanjing [institute of machinery of nicety of aviation of 25-26] , Beijing [university of 27] , Tsinghua [28] also was aimed at machine tool of small small-sized cutting to begin active research. The processing technique of small small-sized part already caused the last word of each country take seriously, the developed country already began relevant technology research, many achievement come out. The photograph of other and imperceptible processing technique such as imperceptible milling and technology of cutting of imperceptible car mill and LIGA and photoetching is compared, have volume small, specific power consumption low, production agile, efficiency is advanced advantage. And no matter analyse effective still treatment from theory, technology of cutting of imperceptible car mill more agree with to grow an axis imperceptibly kind the treatment of the spare parts, cutting of high speed of the cutting position that it is improving small small-sized part, implementation, reduce cutting force, prolong cutting tool life, make sure the spare parts machines quality, improve treatment the respect such as efficiency has clear advantage, it is a kind of method that suits treatment of small small-sized part very much. As long as reasonable the rotate speed that matchs main shaft of turning main shaft and milling is compared, reasonable complementary with other cutting dosage, can machine the small small-sized part that gives ideal. CNC Milling