The finishing of mechanical spare parts and every pieces of blueprint that act the role of technical machinery spare parts to throw machining solely, have go the technical requirement of burr, average car, mill, dig, grind, boring can weave groovy craft, be finished through standard machine tool. Go only burr working procedure, technologist often cannot weave craft file, can use the method such as file, cloth annulus, emery cloth, arenaceous belt to come only purify burr. Such malady is: One, burr purify is inhomogenous; 2, form burr easily 2 times; 3, place of easy cut other; 4, productivity is low, pollution is serious; 5, the effect is overall quality and function. As the development of the progress of science and technology and production, go artificially the requirement that burr already cannot get used to modern market to argue pair of product quality and producer type unexpectedly, light rectifies what processing technique replaced a tradition stage by stage to go burr craft, get the attention of more and more people gradually. Current, the finishing of spare parts of some companies machine and light are acted the role of, already was asked by technology of blueprint of technical personnel be classified content, fashioned standard process. All sorts of machining, no matter be cutting treatment, still cast, forging, the treatment such as punch, leave certain blemish inevitably in spare parts surface almost, be like the surface arris of rough, protruding mark of apparent, knife is moire, flash, burr, microcosmic crackle. For example, when sheet undertakes milling cutter of a face cuts working procedure, can go up in feed face form feed burr, feed flank burr, a Daoduan burr, flank burr is formed on face giving a knife, already machining apparently form coping burr to wait. These blemish can affect the exterior quality of the spare parts and performance characteristics directly, cause badly overall quality and function index fall, make product market coast. However, need to increase to rectify treatment working procedure to be able to solve these problems solely together only. For example, a factory manager that produces gas meter says, every spare parts of the gas meter that his home produces is eligible, but short of of dimension of the accumulative total after be being assembled namely asks to be able to not make delivery. This affirmation is punch those who cause is microscopical burr is in do mischief, wait for an all spare partses to make be rectifyinged solely can deliver the goods entirely after treatment. Test and verify of analysis of the academic research that comes through a few years, experiment, production and many craft experiment study result, the finishing that every uses mechanical part and light act the role of processing technique to all can reach target of the following technology: 1, the machining burr of spare parts of reliable ground purify, pour round acute edge and pointed wine cup; 2, effectively cleared cast, forging and heat treatment residual, impurity of the surface and oxidation skin; 3, the spare parts is refined to process form of 1-2 of exterior surface roughness on original basis; 4, improve position of stress of layer of spare parts surface, form those who fight exhaustion to destroy is even control stress cost; 5, improve metallographic of layer of spare parts surface to organize state, improve the appearance microscopical hardness, form the wear-resisting caustic, compact metal layer that fights exhaustion; 6, raise spare parts cleanness to spend, the drive that finish initial stage wears away, improvement is overall partial performance index, shorten overall adjust period 40% above; 7, reduce process cost, reduce worker labor intensity, improve manufacturing efficiency, free from contamination, facilitating mechanization and automation are produced. In last few years the finishing of mechanical spare parts and light act the role of what development comes out to come back shed type of type, centrifugal type, forked axis, horizontal 4 old series, more than 10 kinds of type reach a large number of complementary makings classics to put in the market, the finishing that had hundreds kinds of mechanical part and the craft experiment that act the role of solely study, obtained better result, and better economy and social benefit. Boil burnish full treatment is will be filled to have by park of treatment spare parts grind piece with the platen that grinds the medium such as the agent in, below complex opposite motion, of free condition grind piece undertake colliding to spare parts surface with constant pressure from beginning to end, boil pressure reach minim grinding, refine exterior surface roughness thereby, purify treatment burr and surface are microcosmic blemish, improve performance of exterior physics machinery, achieve raise quality of spare parts surface and the goal that improve performance characteristics. After equipment make choice of, still must grind a sort, light that loads the parameter ability such as quantity, mixture ratio, handling time to obtain ideal suitably to do treatment result certainly. Grind a character to include: Grind piece granuality of size of appearance, dimension, surface, material deserves to compare character, agglomeration hardness and sandiness quantity. The basis wants to be reached to ask by the material of optical whole spare parts when smooth full treatment, serious choice grinds a character relative to what answer; Mixture ratio is to point to grind piece, the mixture ratio exemple that grinds agent, water and workpiece. When use centrifugal undertakes light makes treatment, load a quantity (point to grind piece, the gross that grinds agent, water and workpiece) compare with workpiece especially important. Usually, in assuring to do treatment process in light, grind piece including from beginning to end the spare parts of every treatment that be rectified by light; Wearing a lotion is the material that the basis is made machine a spare parts by light (steel, copper, aluminous, stainless steel) will divide sort with the requirement. The wears a lotion sort that different place picks the material of the spare parts is not same also. After the finishing when mechanical spare parts and light act the role of treatment to ask to decide, the type that chooses equipment machines the effect to be being rectified solely the impact is the biggest. Undertake choosing probably first usually, undertake craft experiments again next, machine optimal technology program in order to decide light is whole (grind piece, grind agent and light to rectify handling time to wait) . Example of smooth full treatment and detect the result has the following example to be able to prove: One, some engine factory one-cylinder crankshaft, material is ball iron, use BJG-X400 come back light drifting type makes treatment, 6, light works time 15 minutes, did not change via checking each journal to be in dimension accuracy class, and exterior quality rises apparently. This spare parts burnishs via boiling after full treatment, the following apparent effect takes in assemble and using: (1) because the surface refined surface roughness, rose microscopical hardness, arose to press stress, enhanced fatigue strength, in reducing a spare parts to use rupture rate, improved service life. (2) because kept clear of all burr of the spare parts, also undertook boiling grinding to be not treatment surface, facilitate assemble, raised overall cleanness to spend. (3) grind treatment via boiling as a result of the spare parts, the initial stage when already finishing a spare parts to use is adjusted, raised overall performance characteristics. (4) after the spare parts is machined, in observe times higher below magnifier, visible journal surface has tiny impress, this impress is helpful for keeping oil, of the surface when decreasing to start thereby wear away. (5) application rolled grinding work foreword to replace place of circular arc of original oily orifice polish, journal to boil pressure, journal polish and go 4 working procedure such as burr, reduced finished cost, rose to machine efficiency. 2, circumstance of 480 camshaft treatment is the same as plant of some motivation engine exemple 1. Hairiness of place of purify of this spare parts is pricked, the cut of spiracle ejector pin and cam face reduced when using. 3, the gear of pump of some plant gear, material 40Cr, in BJG-L80 centrifugal type boils grind the treatment on machine 20 minutes, the precision after treatment did not change, if result of exterior quality test expresses 4 to show. After this spare parts is assembled, noise reduces 2dB, reduced the cut of end panel and pump housing, raised the performance characteristics of gear pump. Many bits of pressure shapes technology as productivity level raise the flying development that reachs manufacturing industry ceaselessly, to plate kind the demand of a goods also is in rapid growth. Machinery is made, a lot of domains such as sculpture of all sorts of naval ships of aerospace, ship, car, pressure vessel and even building decorate, city, to three-dimensional music face plate kind have a large number of demand. Board kind figuration of three-dimensional curved surface, normally need mould figuration or handcrafted means come true. But the production cost of the mould is high, treatment is periodic and longer, go against a product change, restricting the rapid development of manufacturing industry. And manual figuration is put in quality difference, efficiency again strength of low, labor is great wait for defect. Compete in the market more and more intense today, board kind produce the advanced production equipment with urgent fast and flexible need. Forming machine of many bits of pressure is the advanced production equipment that a plasticity figuration technology and computer technology union are an organic whole, but development of leave out product and design because of the mould in production process, make, debug and revise the time that waits for complex process place to expend and capital, shortened significantly development and production are periodic, to the product change can make fast response. 1. Forming machine of pressure of fundamental much dot is with CAD, auxiliary make and assist a test (the hi-tech that CAD/CAM/CAT) technology is main measure is compositive system. The integral mould disperse that its fundamental is a tradition is arranged into a series of regulation, the drift with adjustable height group, the height of each drift can be controlled at will by the computer, adjust drift apace construction to give needs figuration curved surface according to the target appearance of the spare parts, come true thereby board kind fast, flexible with digitlization figuration. The graph is shown 1 times for principle of many bits of figuration. Facility of primary figuration of many bits of pressure is comprised by 3 much, namely CAD/CAM software system, computer control system and many bits of figuration lead plane (if pursue,show 2 times) . Among them, lead plane of many bits of figuration is the core of system of many bits of figuration. And CAD/CAM software system is a basis figuration target appearance undertakes geometrical modelling and figuration craft computation wait, control a system to adjust the high position of drift through the computer, construction becomes form area, control figuration of to load orgnaization to give wants part next. As a result of figuration face reframe the process reachs the choice of craft parameter to wait to all be controlled by the computer, because this is bit more,figuration process implements automation easily. If combine those who be aimed at figuration result to measure a technology, still can realize closed circuit figuration, raise product precision further. Nextpage2. The application in project of bird's nest construction is in Beijing the Olympic Games used national gymnasium 2008 -- in project of bird's nest construction, used the box body component part that solder by crankle form armor plate in great quantities and becomes, its the crankle appearance of each component and measurement are different, the ply 10mm that uses high strenth board differs to 60mm, the change that spring back measures is very big also. If use mould take shape, make the pattern that spends a huge sum charge; If use fire and water the manual method figuration such as turn board, realize successive pliable figuration very hard, assure figuration precision not easily. After using technology of many bits of figuration, achieved as similar as mould figuration figuration result not only, managing the mould charge of a huge sum, figuration efficiency still increased number decuple. This technology came true in thick board kind digitlize from what design figuration process, solved bird's nest satisfactorily to build the world difficult problem that component of the steel in the project machines. Graph 3 for bird's nest construction project uses box form unit and take shape photograph. Graph project of construction of 3 bird's nest uses box form unit and take shape the fluctuation drift that project of construction of photograph bird's nest uses many bits of forming machine group use 9 × of 9 decorate means, figuration dimension is 1350mm × 1350mm. Can adjust all drift at the same time, from face of a figuration change arrives another figuration face, need the left and right sides 2 minutes only. Because used section figuration means, much is so actual figuration length amounts to 6 ～ 10m. Gymnasium of country of Beijing Olympic Games (bird's nest project) medium crankle panel, "Alive bound is built the sense that initiates a gender is had on design history " . 3. The train of production high speed of clipper-built car head is enclothed outside clipper-built car head should divide into 50 ～ normally 80 different curved surface, each curved surface should part undertake spelling solder after figuration. Press former technology, the pattern that produces new model needs 6 ～ 8 months. And use without forming machine of modular much dot, time of a few days can finish head of a new-style car to enclothe figuration, shortened greatly the development cycle of new product, improved figuration efficiency and figuration quality; In the meantime, reduced labor intensity of the worker significantly, improved working environment. Use at high speed to list head of wagon flow line car to enclothe a made 2000kN many a little bit forming machine, fluctuation drift group use 28 × of 20 decorate means, figuration dimension is 840mm × 600mm. This equipment frame uses C structure, be in when section figuration width direction is OK 2 what figuration bizygomatic breadth spends figuration. 5 times, the workpiece after length direction wants figuration only is not interfered with frame, OK the workpiece that figuration grows indefinitely. 4. Figuration of individuation of skull rehabilitate body this technology above all the processing of three-dimensional curved surface that according to CT tomogram finishs skull to repair place, have the curved surface model of repair body next, craft parameter is optimized, good the design finally repair body data is transmitted directly make a repair system to many bits of forming machine. Current, the skull rehabilitate system that uses form of model of technology of many bits of figuration already applied at and other places of Beijing, Tianjin, Changchun, Harbin in hundreds of much home hospital clinical operation. 5. Titanium alloy board the shell plating of submarine of new generation of figuration our country uses titanium alloy data, the spring back after figuration is great, the method that uses a convention is very difficult figuration; It is better to use device of many bits of figuration the ground solved problem of titanium alloy figuration. Luoyang already used this equipment 725 times to machine shell plating of alloy of several submarine titanium, shortened production is periodic. 6. The form of titanium halftone model in medical project is in medical project, after person head is damaged, skull is short of cutting position to need embedded titanium halftone to undertake repairing. Use technology of many bits of figuration, solved problem of body of titanium board model well. This technology above all what according to CT tomogram finishs skull to repair place is three-dimensional rebuild, the digital design that has repair system next, imitate is assembled, optimize craft parameter, data transmits good the design finally repair system not to have a model many a little bit directly a repair body is made see a picture on figuration equipment 4. Current, use successfully already at many 200 clinical operation. Graph 4 titanium board model form data processing process 7. Thin panel, big curvature reach special appearance kind technology of figuration of many bits of pressure still solved figuration to use flexible thin plate of implementation of the device that approach a limit is bit more the technical difficult problem of figuration, figuration gave a variety of curvature big, form is complex, ply is only 0.
The thin panel of 5 millimeter, what realized big deflection to fall at the same time is flawless figuration, the yeast for making hard liquor that obtains use mould to come true very hard leads workpiece of the shape of a saddle-a falling-off between two peak periods, and the screwy form type that processes a total screwy angle to exceed 360 to spend. Energy-saving decrease the chemical plating nickel of the platoon - technology of nickel of plating of chemistry of phosphorous alloy technology is one kind does not need adscititious direct current source, in metallic surface fall from catalysis, the metallic deposit process that has via controlling chemical and reductive standard. Pass ceaseless research and development and experience accumulate, chemical plating nickel already entered a technology diversity of stability of mature, function, function, use is extensive, can popularize application in a lot of industries. According to content of the phosphor in film different, chemical plating nickel is divided again for low phosphor (1-4%wt) , in phosphor (5-9% Wt) with Gao Lin (9-12% Wt) . At present in phosphorous film application is more: Film of chemical plating nickel is alloy of Ni-P of the condition that be not brilliant, have outstanding uniformity, hardness, wear-resisting and be able to bear or endure the integrated physico-chemical function such as corrode sex. Can in appearance the spare parts surface of nicety of requirement of complex, dimension gets even film, include spare parts of blind aperture, deep aperture and long way to compare very big pipe fitting. The operation is handy, investment dimensions but can small, do not need direct current source. Ni-P alloy film has admirable physics and chemical property, index of main function technology is as follows: 1, exterior hardness is tall, wear-resisting performance is good: Its surface hardness is in Hv (0.
1) 550 the left and right sides, can amount to Hv900-1000 via proper heat treatment (be equivalent to HRc =55-72) , handle the mechanical component after, wear-resisting performance is good, service life is long, can raise 3-4 commonly times, some can amount to 8 times above. 2, the ply of film is extremely even, the component of processing does not accept appearance restriction, changeless form. Special apply to appearance complex, deep aperture, blind aperture and precision demand are high petty the exterior aggrandizement processing that reachs large part. 3, have admirable corrosion resistance can: Be able to bear or endure corrode sex is strong, ability of a variety of chemical medium corrode, if normal temperature is not oxidisability acid, be not oxidisability salt, high temperature thick caustic soda, chloridize hydrogen, vulcanization hydrogen, chlorine reachs the organic acid such as lactic acid, formic acid and organic dissolvent. In alloy of titanium of excel of film of the Ni-P in certain medium, stainless steel and alloy of haing family name. 4, the component after processing, the surface is bright and clean degree tall, exterior brightness, do not need new machining and polish, can direct outfit machine is used. 5, film and matrix have good adhesion, 350~450Mpa is on steel.
. Film flakes not easily, harder than eletroplating chromium and ionic plating want its adhesion tall. 6, the Ni-P film friction to steel coefficient is 0.
38, have inferior friction coefficient. Density 7.
8g/cm3 left and right sides, 85 ℃ influence melting point. Internal stress is less than 7Mpa, resistor leads M of about 90 μ .
Cm. 7, the base material that can handle is extensive: Can be in plating of before last of steely, alloy steel, aluminous, copper, plastic, pottery and porcelain, glass. 8, the waste water in producing a course is little, and eletroplate nickel is different, chroma of ion of the nickel in fluid of chemical plating nickel has 4~6 to overcome only commonly / litre, what use in plating fluid is the mixture of subsidiary channels in the human body through which vital energy that gives priority to with additive agent for food, and do not add the harmful substance such as chromium of lead, cadmium, mercuric, 6 price. And eletroplate content of ion of the nickel in nickel plating fluid is as high as 50~60 to overcome / litre, content of the nickel in cleaning water accordingly is extremely high, some eletroplating fluid still contains virulent prussiate, fluoride to wait. CNC Milling
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