Technology of figuration of accurate Ban gold produces the applied analysis of the domain in aviation

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The application of the development that introduced technology of Ban gold figuration and technology of figuration of accurate Ban gold, the crux technology in process of technology of figuration of silver-colored to nicety gold and development direction undertook an analysis. 1 foreword is in aviation industry, ban gold spare parts is the body that forms modern plane airframe, 70% what take amount of aggregate of aircraft spare parts about, 15% what production workload takes whole plane amount of labor about, have breed majority the quantity is little, structure complex, overall dimension is big, rigid small wait for a characteristic, immediate impact plane is overall quality and production are periodic. Ban gold cent is linear model bend and complex model face spare parts. To linear model curve a machine pressing a turn that uses system of multiprocessing engine numerical control at present to already took the main aspect, but automatic and after be opposite continuously, block wear and slide block position undertakes metrical, undertake so that,be comparatived with set-point corrective, can use oil pressure of oil cylinder of preelection of numerical control system, adjustable hind block worn athletic speed and but automatic process designing. To complex model the figuration of face spare parts is relatively complex, its figuration equipment has envelope to pull form machine, profile to play curved machine and gush ball forming machine. The inherent difficult problem that envelope plays form machine is affirmatory and right amount beforehand tensile, its value should succumb in material between intensity and ultimate strength, give cash can prematurely to belong to exhaustion otherwise. The method with commonly used technology of figuration of accurate Ban gold has rubber pocket hydraulic forming, numerical control to cheat pull, model pull, technology of figuration rolling a turn, figuration exceeding model / diffuse join technology and concussion figuration technology. In already was being applied extensively at the plane to make, these technologies become the traditional figuration means of Ban gold figuration. The application that exceeds model figuration technology among them is a leap of Ban gold figuration, its application machine is planted have F-15B, EAP, EFA, ATF, f-SEIF, b-1B and fierce wind battleplan, the data that its use also develops aluminous clang alloy and aluminium alloy from admire alloy. 70 time rise, british Alcan, the company such as the Penchiney of American Acoa and France and before Russia casts a person to a large number of manpower and material resources are developed and develop technology of figuration of aluminous clang alloy. Be in abroad, component of aluminous file alloy from 80 time medium, later period begins try out of small lot aboard, applied limits expands gradually, applied type has F-15B, EAP, EFA, f-22, f-SE/F, b-1B is waited a moment, access door of cover of perpendicular and the cabin before applied place has cover board of equipment of costal region of ala of airframe frame, flap, electron, plane, stable range, commutate, engine, plane overhauls port and panel of a few walls, obtained remarkable economic benefits. Technology of figuration of gold of Ban of nicety of technology of figuration of gold of 2 accurate Ban is wait for material of plate makings, profile, canal semi-manufactured goods, use the plasticity of material, the processing technique of all sorts of thin wall spare partses is made below the situation that does not produce cutting. Figuration craft is use machine tool equipment and tooling with the place when figuration (the mould) closely related. The development of this technology raises Ban gold not only engineering technology level, and raise figuration of Ban gold spare parts quality and raise level of automation of Ban gold mechanization, reduce manual amount of labor. Do its study limits includes: ?  of cover with a straw mat chants partridge still? of core of Xian of border of duckweed of Piao of far  of aperture of bogus low-lyingponding acute communicable diseases exceeds model figuration / diffuse join structure craft and detect gold of Ban of; of research of technology of aggrandizement of bolus of gush of wainscot of whole of wing of methodological research; is flexible make. Of the structural characteristic that the characteristic that Ban gold spare parts machines basically is a plane and producer style decision. The framework that Ban gold spare parts forms plane airframe uses an external form compatibly, size of spare parts dimension is differ, form is complex, select material each different, crop differs, breed is various. Large airlines makes an appointment with 3}5 spare parts of gold of 10 thousand Ban, and among them particular has 9 only. Additional, the spare parts has more complex appearance, strict weight control and certain service life ask, and have affirmatory index to the mechanical function of data of the hardware after figuration, the photograph of Ban gold spare parts with other industry is taller than technical requirement, treatment difficulty is great. Its machine a method to divide outside using traditional method, still have the engineering technology with individual line of business of one's own profession. With respect to technical level character, from manual operation, half mechanization until flexible production system, machine difficulty difference is very big. 2.

1 exceed model figuration technology (the requirement that SPF) exceeds plasticity according to implementation (condition of organization, temperature, stress) classification, basically 3 kinds exceed plasticity: ? Courtyard of benzyl of  of Su of Jiu of ⑾ of bath of benzyl of Fu С  pushs bath of benzyl of Lu   6  guides benzyl of  of С of Fu of a key to do sth of neon of drought of Zhui of Gu of rice of τ of apricot of bite   makes rich  Pan ≌ huts simian  of breed  benzyl smile of free time of  Peng herd fetterses army, express with absolutely temperature) rate of; meet an emergency is low (10-0} 10-s assist. SPF technology has method of 3 kinds of basic take shape, namely shade model figuration, area figuration and force plug figuration, apply among them the most general is shade model and area figuration. Force plug figuration needs special device, the spare parts wall that its produce is large evener. Method of force plug figuration is effective benevolence the craft union that is the method that will exceed figuration of plasticity atmospheric pressure and drawing figuration rises, those who get is deep antrum board figuration the mural large difference of antrum bottom and antrum wall is very little, to gas cylinder kind the form cutting of the spare parts has distinct technical advantage. 2.

Do 2 exceed model figuration / diffuse does join combination craft diffuse is connective standard definition: ? Melt  of hard sell of low-lyingponding colourful of the member that  embraces quarrel of Hui of deceive of the Bi that seek rice huller to break  Ci benzyl steals Tuo Yi melt Nai of astounded of Zhang of  of  commonplace ぜ shows stay of proceedings of  of approach of the  that bear Qiong oh tip of abb of suddenly of ancient name for a kind of scorpion of cover with a straw mat of abb of ッ Bi attentively adds up to Mi to prick  captive  , diffuse join meaning expands again to be out of shape greatly / finite diffusing join method. Diffuse with what combine technology at SPF/ DB does join method basically have 3 kinds of: ? " low-lyingpond feed  of ⒘ of ┥ of very hot  to imprint ⒐  tip closes ah ┥ ⒘  harmony low-lyingponding? of painful an insect destructive of the roots of seedlings is finite diffuse join. In diffuse laziness should be used to protect gas or vacuum in join process, form and grow of the layer in order to prevent combustion. To admire alloy, SPF and DB technology condition and craft parameter have compatibility, because this is possible,combine two kinds of technology in loop of a temperature in component part development, realize figuration and join at the same time. Component of admire alloy SPF/DB basically has 3 kinds of forms. Using SPF/DB to combine craft to undertake multilayer in structural production, can first the SPF(DB/SPF) after DB, OK also first in process of the DB(SPF/DB)o DB/SPF after SPF.

The core of component part hardens compose by board face stop welding flux design and calm, component part production can heat in finish in the loop, also can divide for two working procedure. The characteristic of a working procedure is a spare parts modular; need not leave in producing a course two working procedure have the following advantage: DB can use atmospheric pressure or mechanical pressure, also can choose other to join can undertake to DB quality the temperature of;DB and SPF can be optimized severally detecting before technical;SPF, ; of baric easier control can join at the same time a few components, improve treatment economy. And in SPF/ DB process, add according to component part above all compelled begs welding flux of formal Tu Zhi or solder, next outer board with core DB of board edge periphery is baric figuration, fall in temperature exceeding model and pressure condition finally, the core that finish board between and core board and outer board the DB between. The main problem of this craft is to assist DB to compare main DB difficulty, DB can rely on atmospheric pressure to provide pressure only, additional, the impurity in ammoniac gas and stop through what fall off after SPF welding flux brings about DB easily to join quality drops. 2.

Concussion of laser of 3 laser concussion is one kind will stimulate beam of light to pound metallic surface to form a kind of planar wave with pulse form, cross workpiece and make material produces plasticity metabolic technology at the same time, its plasticity is out of shape deepness and form those who press stress deepness to compare other most finishing apparently is big, improved fatigue performance substantially thereby, rupture tenacity and stress are corroded fight force. Laser concussion was developed in Batell lab 1965 about, at that time in the absense of reliable, the laser of tall pulse frequency, high average power and fail the project is changed. Just be in till 1997 General Electric Company (GE) wins commercial application first, with injury of the content outside coming to those who reduce leading edge of lamina of fan of engine of for military use. Recently two years, production pounds ability to rise significantly with laser. In this respect, MIC(metal improves a company) with L1NL(Lawrence benefit nots lab of Home Mo Erguo) have distinctive contribution. MIC company makes laser pounds a technology be able to the project is changed, LINL company provides light source of reliable swash of arteries and veins, pulse repeated frequency to raise 10 times than before, shortened thereby processing time, improved productivity, reduced cost. MIC company and LINL company fund research of a collaboration and development plan, its are percussive application mainly. Branch of concussion of MIC company laser installed the business of 2 LINL company to use laser system again recently, use at handling turbine engine spare parts. Laser of riverside of the new-style glass that the concussion system of L1N L-MIC of system of contemporary laser concussion uses, flashlight pump. The average power of system of ① system parameter is 125 W, pulse width 10-100ns, pulse energy 20J, pulse repeats frequency SHz, rectangular laser spot. Say commonly, does typical laser pound parameter to be: ? ?0-30ns of Ji of Jian growing permanent teeth, pulse energy 10~20J, pulse repeats frequency 3Hz, laser nods dimension to be the rectangle of 3~5mm. ② surface preparation points to laser source the surface that benevolence classics intends metallic work. There is one plane inside set workpiece paragraph be in concussion position. Before concussion is handled, in this the surface brings to bear on to an opaque " can burn the oil of frit or take " , the " of " tamp layer that there still is a water of transparent going from place to place on the layer that burn frit. ③ laser pulse is down laser pulse a surface to pound. The photon of pulse crosses transparent tamp layer, layer of the frit that be burned is absorbed, appear quickly distensible plasma cloud. Plasma cloud is in by water layer tamp apparently. Of the plasma cloud of tamp expand, 1~10GPa is added in force of 10~100ns internal pressure for workpiece surface.

The planar shock wave that ④ plasticity is out of shape the surface is formed crosses workpiece next, form surface of plasticity metabolic material thereby. Laser is out of shape to hit tall plasticity the plasticity that leads generation is out of shape the region is remote get more greatly than other impact technology much. But cold make sclerotic degree be less than 1% . 2.

4 hydraulic forming are flexibility sunken model with hydraulic pressure bursa (or punch) , control medium to pass with oil, make plate material is in sunken model (or punch) on the method of figuration calls rubber pocket hydraulic forming, abbreviation rubber hydraulic forming or hydraulic forming. Hydraulic forming craft is in early 50 time are used by aviation factory. But the limitation as a result of equipment condition, pressure has 80~400k · N/cm2 only, belong to low-pressure rubber figuration, manual school look wants after spare parts figuration. Company of Chengdu aircraft industry introduced from Swedish ABB company 7.

70 thousand tons of hydraulic press, have pressure the characteristic with tall, big mesa, volume of manual school body is minor after spare parts figuration, offerred good condition to improve the figuration quality of hydraulic pressure spare parts. 2.

The laser technology that 5 laser technology appears in recent years can say is to gave Sheet Metal Fabrication to bring again revolution, laser Cutting and laser figuration emerge as the times require. Use Laser Cutting to process board material, "The mould changes " is equal in value at be in machine tool of NC(numerical control) the person's new treatment is inserted in the system (cut or figuration) program, so mould government issue by NC program assemble and unassemble problem place is replaced. And CAD/CAM technology and union of photograph of contemporary laser technology are peak production technology (if FMS) was offerred new flexible manufacturing tool. Laser Cutting and CAD/CAM technology photograph are united in wedlock, can realize treatment processes of all sorts of automation of intricate geometry appearance, need to use a lot of advanced techniques among them, the expert database that designs like products plan and craft. Modern production is production of much breed small lot mostly, to improve productivity, ban Jin Chong is cut into parts should use group set cut into parts, machine an a variety of spare partses at the same time on a board makings namely. The geometrical appearance of the product loses a person after all of computer science department, CAD/CAM system undertakes handling to its, the circumference knead dough of automatic computation graph is accumulated, and undertake combination discharges appearance automatically, give manufacturing process file by generation of computer expert database next, undertake NC process designing finally, production process file turns control into information, if machine course of parameter, cut,wait. Laser Cutting can be overcome the need when differring to material ply and spare parts dimension and precision requirement is made afresh and change the defect of the mould. Contemporary Sheet Metal Fabrication uses punching machine and the combined-type machining center that Laser Cutting photograph combines more. Laser figuration technology is craft of figuration of gold of a kind of new-style Ban, it is to connect ultra beam of light to undertake local heating to workpiece, cool quickly with water or gas after that, thereby figuration spare parts. Laser figuration technology does not need clamping apparatus, mould and outside force, reduced cost greatly consequently, shortened manufacturing preparation is periodic. Pass the rigid control that heat to stimulating beam of light and cools, effectively control stuff is out of shape. Use laser figuration technology, it is OK to can curve cone of plank, figuration and; of shape of ball bodily form flange is made in the location of pipe, expand or contract. Laser figuration technology agrees with especially traditional method hard or the horniness material of impossible figuration and brittleness material figuration. Does laser figuration craft comprise: by two paces? So the fast refrigeration that area of be heated of material of ② of? of deficient of play of rice huller of daughter-in-law of herd of die young of す dainty  undertakes suitable. Working procedure of this two paces - heat and the field of stress meet an emergency with cooling local, instantaneous, stereo generation, make material happening is out of shape. The appearance of the spare parts (of material be out of shape means and deformation) can be controlled through computer program. Because material is local of temperature be being added suddenly is short time, the material function of workpiece is so insusceptible, data strength won't be reduced normally, still can increase sometimes. 3 application analyse the further progress that makes a technology as aviation, if technology of figuration of accurate Ban gold exceeds model figuration technology, laser concussion, diffuse the figuration of accurate Ban gold such as hydraulic forming of join, rubber pocket and laser figuration develop in abroad very rapid, and advanced level still has our country and international not little difference. Accordingly, we answer from overall situation of whole aviation industry live to set out with development, from technical economy integrated benefit considers, improve the work efficiency of Ban gold figuration ceaselessly, improve the quality of Ban gold figuration. The application of technology of figuration of gold of ① accurate Ban saved material and workload, thereby abundantly saves arms spending, because the ② of action; that makes effective capital play bigger is accurate Ban gold intensity and stiffness and corrosion resistance all rise somewhat, because this produced quality to rise, make the weapon fights thereby function raises; because ③ is flexible the Ban gold that the occurrence of production system solved small lot, much breed production, reduced manufacturing cost, raised the market to answer speed greatly, taste development newly, change the line of production fitness, shorten thereby development and production are periodic. Engineering technology applies gold of 4 last word Ban extensively at aviation to make in, its machine craft level raise can great improvement plane performance, and the change of plane structure promotes Ban gold craft to develop ahead ceaselessly again, both supplements each other. Method of a kind of when technology of accurate Ban gold regards spare parts of plane Ban gold as treatment advanced treatment, its apply at aviation to make a domain be sure to drive aviation to make technical progress energetically ceaselessly. CNC Milling CNC Machining