The main characteristic of compound treatment is harmony of integrated application machinery, optics, chemistry, electric power, magnetic force, fluid a variety of energy such as wave undertake be machininged integratedly, rose to machine efficiency, productivity often greatly the productivity the sum that prep above uses all sorts of treatment methods alone. While compound treatment is improving treatment efficiency, give attention to two or morethings quality of surface of treatment precision, treatment and tool loss, have the advantage that groovy and onefold processing technique cannot compare. The compound processing technique that says normally has 2 kinds of meanings, one kind is the different treatment method that is a foundation with energy or athletic way is compound; Another kind is the machining craft that is a foundation with process market Central Plains those who give priority to is compound, this is CNC Machining domain what develop quickly in recent years is efficient machine means. Compound processing technique basically solves the problem of 2 respects: Machine the treatment of material and fragile hard data the treatment of special structure and complex structure, hard. Current, compound processing technique has been in the industrial domain such as aviation, spaceflight, enginery and nuclear energy is difficult wide application phase is entered stage by stage in the efficient treatment that processes data. Hard fragile data is used in great quantities in the accurate machinery of latter-day and swift and violent development and electronic industry (wait like hard alloy, pottery and porcelain, optical glass and gem) with crystal material (like) of semiconductor chip, monocrystal and sapphirine crystal, compound processing technique had the land of new use force more, can wait for hard brittleness material to realize tall figuration precision and extremely low surface surface roughness with economy, reliable method to pottery and porcelain, glass and semiconductor chip, can make the surface is reached inferior the damage that structure of exterior layer crystal organizes decreases to lowermost rate. The basic form of compound treatment is complex processing technique can differentiate for mechanical and compound treatment, electrochemistry compound treatment, electric spark is compound treatment, exceed polish of treatment of efflux of water of unripe compound treatment, abrasive, chemical machinery [1] , according to afore-mentioned classification, the basic meaning of compound treatment method is wraparound if the watch is shown 1 times,rise. The field is created in common precision machinery, the compound treatment method that with groovy machining, electrochemistry treatment, electric spark treatment gives priority to is most commonly used. The development that controls a technology as number in recent years and product part integration design wide application of the method, the Che Xi of machining domain mill vehicle is compound, complex treatment, cutting, report machines compound treatment method to be able to develop quickly, make the important instrument that supports treatment of contemporary aviation product, of facilities of new-style and compound treatment roll out ceaselessly, effectively supported the development of compound processing technique and application. The compound treatment that is compound treatment method of the foundation to be a foundation centrally with working procedure centrally with working procedure is the model that machining domain introduces compound treatment method, it is to be in in clip of fixed position outfit normally, car, mill is finished on an equipment, auger, a variety of cutting such as aperture of boring, tap, bore with a reamer, reaming machine a requirement. The most outstanding characteristic of method of this kind of compound treatment is clip of concentration of workpiece treatment working procedure, outfit the treatment that can realize a variety of structure element, reduced workpiece to locate the frequency that hold clip, eliminate latency time of workpiece have enough to meet need, can eliminate workpiece for many times to install clip to locate the error that cause is accumulated, be helpful for making sure the positional precision of crucial essential factor on workpiece asks, shortened at the same time the production of workpiece is periodic. The compound processing technique that is a foundation centrally with working procedure develops with machine tool structure all the time closely related. From 19 centuries 40 time turn the wide application of modular machine tool of initial stage of tower lathe, 20 centuries, of the 3 axes CNC Milling that to 20 centuries 50 time appear, machining center that contains cutting tool to exchange unit automatically appear, effectively drove the compound treatment that working procedure centers to machine methodological development. 20 centuries the later period in 80 time, as machining center function and structure perfect, showed the advantage of the numerical control machine tool that is a foundation with process market Central Plains, begin center of occurrence turning center, milling machining center, grinding to wait, but these treatment means still demarcate is in same kind on treatment means, still cannot call the compound treatment method on real significance. 90 time later period begins 20 centuries appeared Che Xi is compound compound center, Che Xi grinds car of center, mill compound center and the much head treatment that deserves to clip holds workpiece manipulator is unit (like Swedish Transflex machine tool, in machining a process, send into means to arrive at the head office that deserves to have different cutting tool to undertake machining with workpiece, implementation multitask foreword " compound " ) , the compound ability of method of treatment of this kind of different cutting became a when compound processing technique develops new heat truly. Car mill center is given priority to with turning function, compositive the function such as milling and boring, have axis of 3~4 linear feed (the 1~2 that 2 turning is original linear axes, milling head increases linear axis) with 2~3 rotor (turning circumgyrate, milling circumgyrate and milling head swing) , and deserve to have change knife system automatically. This kind of Che Xi is compound machining center is on base of center of 3 axes turning development rises, those who be equivalent to center of a turning and machining center of a milling is compound (turning gives priority to a function, milling belongs to auxiliary function) , can go up in center of mill of a car, hold clip through, the car of the workpiece that finish, mill, get, the treatment such as boring, tap, enlarged turning to machine craft limits. Machine tool of this kind of compound treatment can satisfy the high accuracy of spare parts of abnormity swing tower that gives priority to with treatment of circumgyrate structure element to machine a requirement, it is one of the most advanced machining equipment inside limits of eye preexistence bound. Mill vehicle center is one kind is given priority to with milling function, increased the need that the circumgyrate function of workbench machines with satisfying turning, in reservation original 3~5 axis moves on means foundation, regard turning as rotor circumgyrate workbench, and deserve to have change knife system automatically. Vehicle of this kind of mill is complex treatment facilities rises in the development on foundation of milling machining center, those who be equivalent to center of a milling and center of a turning is compound (milling gives priority to a function, turning belongs to auxiliary function) , can go up in center of vehicle of a mill, hold clip through, the chamfer on the workpiece that finish, model face, mouth, aperture, outside the mill of the structure such as the circle, car, get, the treatment such as tap, enlarged milling to machine craft limits. Machine tool of this kind of compound treatment is OK full enough is complex model face and the treatment requirement that the structure machines the part of swing tower construction that give priority to, it is to be engine of contented gas turbine, aviation, power station to generate electricity in recent years the advanced machining equipment that the dynamical machinery component such as equipment creates demand and work up rises. With energy compound the compound treatment method that is a foundation with energy compound the compound treatment that is a foundation is to satisfy accurate superprecision, difficult treatment the treatment method that material treatment, special material is machined and uses, it is normally 2 plant or the combination of technique of 2 kinds of above, the treatment of same structure is completed on an equipment. The outstanding characteristic of method of this kind of compound treatment is 2 plant or energy of 2 kinds of above is compound, its are main the feature is striking cutting force is done not have between the tool in machining a process and workpiece, the tool material hardness that treatment uses is OK under by the hardness of treatment material, can go out with simple athletic treatment complex model face. Nextpage with energy compound the compound processing technique that is a foundation has longer development history, the key is to electroanalysis, supersonic, electric spark, heat energy as compound as machining, the treatment demand that material of treatment of contented and accurate treatment, special type material, difficult treatment machines. Typical compound treatment method has: Electroanalysis online nap grinding, supersonic oscillatory cutting, electroanalysis grinding, electric spark is chemical and supersonic treatment, mechanical polishing. Electroanalysis online nap grinding (Electrolyticin-process Dressing, ELID) is Japanese physico-chemical institute is big dark the superprecision technology that whole doctor invents, use electroanalysis the method undertakes online nap to emery wheel in grinding process. Fundamental is a fine granuality exceed hard abrasive (diamond and grinding of CBN) emery wheel and electroanalysis photograph of online nap emery wheel combines the method, make emery wheel holds the sharp grinding property that grinds bead and stability, can achieve mirror grinding, obtain the compound processing technique of taller productivity. In ELID grinding system, cooling fluid is electrolyte, grind round of outside that metallic bond emery wheel leaves in electrode action when rotating to be electroanalysised ceaselessly, new abrasive is shown ceaselessly and assured emery wheel the keen sex in grinding process, avoided what surface layer abrasive wears away to fall off and be caused to jam phenomenon; Leave electroanalysis the surface of emery wheel bond of area can happen to oxidation forms passivation film and be prevented electroanalysis action continuity undertakes, the mechanical attrition action of grinding area makes passivation layer is destroyed, reentrance electroanalysises nap process. ELID grinding can apply at all workpiece stuff that can undertake grinding is machined almost, special agree with treatment is planar. Supersonic and oscillatory cutting is supersonic vibration introduces in common machining, the compound treatment method that supersonic vibration brings to bear on to go up and be formed in cutting tool or workpiece. Supersonic and oscillatory cutting from microcosmic on can regard as pulse cutting, in oscillatory cycle, cutting tool and workpiece, cut bits intermittent contact, improved the refrigeration of cutting fluid, lubricant function, make the attrition decrescent that cutting tool place gets, reduce force of heat in metal cutting, cutting thereby, and conduce to remove the tumor that accumulate bits. A few experiments consider to make clear, supersonic and oscillatory cutting can make cutting force reduces 1/20~1/3; Torque of supersonic and oscillatory tap can reduce the L/8~1/3 of common tap; Below the premise that assures to machine precision and treatment quality, the efficiency of supersonic and oscillatory cutting raises 2~3 than general cutting method times, sometimes taller even; In bore hole oscillatory cutting is used in treatment, small, surface roughness reduces error of treatment dimension stability, appearance; Supersonic and oscillatory cutting also makes the cutting treatment of a few high strenth, tall hardness and difficult figuration material becomes a possibility. Current, supersonic and oscillatory cutting already applied at the treatment of the metal such as alloy of heat-resisting alloy, stainless steel, titanium and pottery and porcelain, glass and material of metalloid difficult treatment, also apply Yu Yi to curve metabolic slightness lever kind spare parts of spare parts, trail stoma, thin wall, thin kind of spare parts and dish of trail nicety whorl and appearance precision of complex, treatment and exterior quality requirement taller spare parts. Electroanalysis grinding is to rely on zincous metal electrochemistry to corrode action and union of photograph of mechanical grinding action, produce zincous film except the metal through electrochemistry action corrode, the dimension of workpiece or appearance are to rely on emery wheel to grind a raze zincous film is obtained. This kind of compound treatment has better treatment precision and exterior quality than electrochemical machining, have taller productivity than mechanical grinding. Electroanalysis in grinding system, the electric emery wheel of metallic bond receives the cathode of direct current source, be received by treatment workpiece zincous. Emery wheel grinds bead to highlight form the treatment clearance between workpiece and emery wheel at the matrix of electric emery wheel, electrolyte was full of in processing clearance, the metal of workpiece surface is electroanalysised to corrode below the action of electric current and electrolyte, form paper-thin oxide or a hydroxide film (the positive pole with inferior hardness is filmy) ; The zincous film that just formed is rapid be blown to divide by the abrasive in electric emery wheel, show new metallic face to continue to arise again on zincous workpiece electroanalysis corrode. Such, electroanalysis action and the grinding action that grind bead scrape film undertake alternately, going from place to place electrolyte takes away the quantity of heat of zincous and deliquescent child and generation, undertake realizing the treatment to workpiece continuously through this one process, till achieve certain dimension precision and exterior surface roughness. Electroanalysis grinding is main the advantage is: Size range of pipe bent is wide, want to choose appropriate electrolyte to be able to machine the conductor of any tall hardness, tall tenacity only; Grinding force is small, grinding heat is very few, consume power small also, won't produce grinding burn, crackle and burr, can acquire taller than electrochemical machining treatment precision and better exterior quality. Current, electroanalysis the part that grinding basically uses treatment to produce sclerotic burn phenomenon and hot sensitive material tall hardness, easily, wait like lamina of alloy of hard alloy cutting tool, titanium. The part of construction of Bao Bi of integration of representative application example of compound processing technique is the design form that middling of structure of engine of modern plane, aviation sees, structural member of integral thin wall can satisfy the design pursuit that the plane quantifies as gently as engine structure not only, and Yi Wei of product of can contented aviation is protected, the main demand of high reliability, macrobian life, the part is main the feature is: (1) structural member of integral thin wall mural large size is normally small, have 1~3mm only commonly; (2) spare parts structure is complex, in the structural texture that visible form distributings to differ on many direction the element needs to machine; (3) demand of spare parts precision is high, in machining process of difficulty of fashionable dress clip, treatment, easy generation treatment is out of shape; (4) part of a little complex structure uses stainless steel of titanium alloy, high temperature alloy, high strenth to wait for difficult treatment material, efficiency of groovy purify of treatment method material low, difficulty is great, and produce exterior limitation easily and affect spare parts life. Aviation product part needs to pass more complex technological process mostly, tens of coming ability of hundreds working procedure completes treatment, make sure workpiece machines the precision and quality, lasting theme that improving manufacturing efficiency is production process. With working procedure concentration is compound processing technique of the foundation, will " center working procedure, outfit to place implementation multitask order compound treatment " the concept is perforative the process is machined in spare parts cutting in, for aviation the production of complex structure part offerred new approach; With energy compound the compound processing technique that is a foundation, criterion will " energy is compositive, various at the same time action implements the law the treatment of crucial structure element " the concept is perforative at difficult treatment the structure is mixed in the production process of spare parts of difficult treatment material. 1 mill vehicle is complex the casing of whole of representative application engine of processing technique kind the spare parts is to suit mill car the structure of typical spare parts of compound treatment, if pursue,1 is shown. The treatment method of Nextpage convention is to use center of lathe, milling to cooperate to complete treatment, main craft course is: Semifinished product preparation, lathe: End panel of turning one aspect of the matter, lathe: End panel of car other one aspect of the matter, examine: Ultrasonic checks, lathe: Face of car lower end is fiducial, lathe: On thick car, the lower end, milling center: Stage of thick mill protruding and its end panel, benchwork: Go burr, stable processing, lathe: Face of long lower end is fiducial, lathe: On half fine vehicle, the lower end, lathe: On fine vehicle, the lower end, milling center: Stage of protruding of mill of essence of life and its end panel, milling center: Appearance of mill end panel, milling center: Casing week machines to aperture, benchwork: Go burr and exterior nap. Use mill vehicle is complex machining center is OK semifinishing machining the following working procedure is centered in mill car on compound machining center, reduce center of lathe, milling to the working procedure between is changed and install clip process, although craft line is as similar as groovy treatment method still, but turning, milling is to those who finish is in below the condition that hold clip, simplified fiducial transfer harmonious process, decreased to install working procedure of clip sum of errors to change cycle. Introduce mill car after compound machining center, the process before stable processing is as same as groovy treatment method still, complete side of long lower end after standard treatment, workpiece is in directly all treatment that mill car completes sequel on compound machining center, simplified the outfit clip of workpiece searchs process (this kind of spare parts installs clip to look for correct errors difference to be about normally every time 0. 02mm) , more important is, eliminated profile of protruding stage, aperture, end panel 3 person between the position error that because hold clip,change causes. 2 cars mill suits Che Xi in the product of representative application plane of compound processing technique the spare parts of compound treatment basically includes: The torsional arm of transmission system, pay perch; Engine fuel atomizer, installation, body of a powerful person. Signal of structure of typical spare parts is shown 2 times like the graph. 2 spare partses are to in an attempt to exemple, groovy treatment method is to use lathe, milling machine and tool of form a complete set to cooperate to complete treatment, main craft course is: Semifinished product preparation, underline, allocate surplus, lathe: Appearance of thick car swing tower, milling machine: It is with the swing tower appearance of thick car fiducial, thick mill forked ear carries outline and end panel, lathe: Appearance of swing tower of half fine vehicle, lathe: Swing tower appearance locates, make the hole inside swing tower, lathe: Aperture locates inside, appearance of fine vehicle swing tower, lathe: Swing tower appearance locates, aperture of the aperture inside finish machining swing tower, boring end panel, milling machine: With fixed position of swing tower appearance, antrum of appearance of mill forked ear, chamfer, notch, milling machine: Mill grows round chamfer, milling machine: Mill forked earhole, benchwork: Go burr and nap. Use Che Xi is compound machining center is OK from swing tower of half fine vehicle the appearance begins, will from the back all working procedure arrive centrally Che Xi is finished on compound center, the new fixed position that reduces milling to machine a process holds clip, complete the treatment of odd place, disappear causes an error to accumulate besides clip of fiducial and harmonious, new outfit, the smooth stability that the treatment precision of this kind of spare parts assures effectively to transmission system works and dependability. In addition, spare parts of spare parts of engine fuel atomizer, body of a powerful person uses Che Xi compound treatment facilities can be in the structural essential factor that has mutual position concern is finished to machine after holding clip, assure its position precision, satisfy requirement of its character of service better. 3 electroanalysis the biggest question that the grinding of spare parts of alloy of representative application titanium of compound processing technique machines grinding is, the workpiece surface after grinding can appear burn, crackle, be out of shape and stress is pulled easily in surface layer generation, the technique that reduces grinding stress must be adopted in grinding process. To achieve the result of low stress grinding, groovy grinding craft wants fractionize grinding process normally, kibble of strict control, half essence is ground, the feed that essence of life grinds 3 phase. Use electroanalysis grinding is compound treatment is one of effective technique that solve difficult problem of grinding of titanium alloy spare parts. According to electroanalysising grinding machines a principle, the composition of diamond emery wheel of use metal bond electroanalysises grinding is compound treatment system, this kind of technique has won application in abroad, call its diamond grinding. Diamond grinding is dc electric current is increased on the spare parts (positive pole is the) of diamond emery wheel that uses metallic bond, emery wheel apparently the cutting property that the zincous and deliquescent action of emery wheel and titanium felt managed emery wheel. Undertaking diamond grinding can be electric current of positive electrode sex (spare parts -- zincous, tool -- cathode) , also can be electric current of negative pole sex (spare parts -- cathode, tool -- zincous) . The basis experiments [2] , grinding of diamond of titanium alloy spare parts recommends following grinding condition and parameter: Electric current of positive electrode sex, =30 of к of emery wheel V... 32m/s, =0 of р of п of work shift S.
17... 0.
20m/s, =1 of φ of workpiece roll S.
05 · 10-2rad/s, grinding ply H =0.
1... 0.
2mm, voltage U =4V, electrolyte is 5%K3PO4 + 0.
5%(NaPO3)6 +0.
3%Na2CO3. Acquisition basic verdict is: To titanium alloy lamina, the foliaceous back generation of the lamina after diamond grinding compares arenaceous belt the remains with bigger grinding presses stress, distributing to fall to deeper surface layer. Foliaceous basin paragraph the distinction that did not discover means of 2 kinds of treatment issues leftover stress. Grinding speed, deepness and quantity of supply of treatment area cooling fluid are leftover to spare parts surface layer stress numerical value and characteristic are influential, remains is formed to pull stress when increasing speed, deepness and in short supply of treatment area cooling fluid. The last word is compound processing technique is made in spare parts of difficult treatment material, treatment of high accuracy workpiece, improvement is machined the application of the respect such as quality of spare parts surface, had reflected the advantage that gave its oneself. Aviation product production domain is advanced all the time the main arena of action of production technology play, produce those who taste function to rise as aviation, requirement of the high accuracy of crucial part, high reliability is more strict, of compound processing technique be perfected ceaselessly and develop the technology with be sure to be the production of aviation key spare parts to offer better to prop up. CNC Milling