Processing technique of special type attrition reachs his to apply

Green) of the invention, of the same age files British patent. Ba Baikao overcame England 1975 (Babcock) wire equipment company made the first ConFORM successive extruder, throw the industrial production of aluminous lead. Law of ConFORM successive extruding is to use those who be out of shape the metal realizes extruding with the attrition force between the tool. If the graph is shown 5 times, crowded drum is driven by electric machinery rotate, modular antrum is located in flank, because rotate,the attrition master piece of wall of crowded drum chamfer is used, preform is brought to the arc that forms by crowded drum and housing by drag inside extruding antrum. Preform temperature lifts pressure is increased, after reaching fair value, go out from modular Kong Zhongji, fashion tubal material or profile product, the attrition of the preform when ConFORM squashs continuously and tool surface is calorific relatively remarkable. Accordingly, to the aluminium of low melting point and aluminium alloy, do not need to undertake exterior heat the temperature of metabolize area rises to 400~500 ℃ and can realize hot extruding. And the material that waits for higher melting point to copper and copper alloy, sheet relies on attrition to give out heat very inaccessible be out of shape metallic heat squashs temperature, need pair of round of chamfer, standards commonly undertake ability realizes stable extruding assisting heating. Process of ConFORM successive extruding need not lubricate, the maximum pressure that generates by attrition force so and high temperature, the preform squeezing ramming that can make grain shape sends likewise is squeezed piece, the useless bits that this is the generation in using machining directly or open up of other waste material new approach, can undertake to grain makings or powder alloy changes modulation at the same time, make squeeze the performance that gives product to be able to improve accordingly. Successive extruding technology can squash aluminous, copper and its alloy, basically use at production to provide material, sectional profile and transformer, electric machinery uses abnormity the product such as cupreous electromagnetism line. Graph 6 for commonly used successive extruding mould and extruding product. Attrition extruding wraps Fu technology attrition to squash to also can be used at wire to wrap Fu, call attrition to extruding wraps Fu or chafe compound extruding. The tubal material that bag Fu uses gives core club to wrap Fu equably below the action of radial load a material. Successive extruding also can be used at wrapping Fu, call CONCLAD. In ConFORM the development on successive extruding foundation rises ConCLAD, two preform are used when wrapping Fu continuously, modular antrum is located in crowded drum upside, cable core line or edge of metal core line are tangential furnish, the bag after the extruding after aluminous club enters housing is in charge of into aluminium winds core string, can form a bag to cover or include Fu product. Its job principle is shown 7 times like the graph. Gyral crowded drum is circumferential on contain groove, pass squeezing ramming annulus. Good stuff semifinished product is below the action of round of groovy attrition force be introduced by drag round of chamfer inside, follow crowded drum together whirligig, until by annulus inside groove block makings piece to hold off, below the attrition strength effect that produces in gyral crowded drum, the temperature of preform is ceaseless and elevatory, the pressure that gets also increases ceaselessly, when the plasticity flow limit that reachs material, form in the mould around in the bushing all round the core line that crosses from inside modular antrum, go out from modular Kong Zhongji again, form a bag to cover a product. ConCLAD successive extruding includes Fu technology with its the product is successional, sex of energy low cost and technical stability become wire cable to produce one of industrial methods that development latent capacity has most in industry. Afore-mentioned technology that use attrition to undertake material is machined are in the last word is interlinked substantially. It is to use attrition to make mechanical energy is changed into heat energy, make material local enter treatment state, through machining condition to entering the effective control of material can realize form cutting. Special type attrition machines a process need not additional heat source, generation caloric place is namely use caloric position, reduced the loss of energy. Attrition produces hot place to have the effect of outside force at the same time, closely related the attrition power that the outside force that brings to bear on here often needs with place again, those who achieved power make full use of. In recent years, processing technique of special type attrition is paid close attention to greatly very much, as the ceaseless application of new material and new structure, systematic development research and processing technique of attrition of development special type are imperative. CNC Milling