Processing technique of dry type cutting machines medium implementation in car aluminous spare parts

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21 centuries of condition of protective ground ball are the firstest the task of the consideration. In machining domain, the research development of measure of environment of a few protection and its achievement already got applied extensively. Among them, to managing the sources of energy and the main treatment kind that reduce trash, do type, half dry type to increase the research that cuts processing technique namely, undertaking quickly. The aspect such as the angrily treatment in milling treatment, gear is practical already change, obtain the result of your satisfaction. But in aluminium especially aluminous aperture machines a respect, because produce aluminium to bits sticks a knife and bring about cutting tool,break off, treatment precision is exasperate, one problem remains at farther thrash out, at present aluminous the example that aperture treatment uses treatment doing type is not much still. The development tendercy of environmental protection technology is in machining domain, have various environmental protection technologies, substantially can be divided for managing the sources of energy, reduce litter, ensure working environment is safe, easy quality 3 kinds big. Have in managing energy field: The resistance that reduces hydraulic pressure pipeline and make the norms of cutting fluid pump is reduced and change without hydraulic pressure etc. Normally the circumstance falls, in the job although the rated power of pump is very little, but the power that it consumes is general very big, especially the 60% above that the power that cutting fluid place consumes wants to take general power, accordingly, the technology is being narrated before is cogent and effective to managing the sources of energy. If show the waste liquid that reduces cutting fluid is measured,reduce deserted owner. Each company is changed in the effect that devotes oneself to cutting fluid and repeat a loop to use the development that waits for a technology and application. In cutting fluid lasting effect is changed (macrobian life is changed) respect, the synthesis of cutting fluid turns one of projects that are development. Because synthetic cutting fluid is,with chemical complex fat dose is base juice will use, accordingly, answer to notice the endophilicity of it and water adequately, can design molecular quantity artificially to wait. The metallic ion that waits as a result of calcium and other mix oilily and bring about the aggravation of interfacial activator, so grease depart is controllable the adverse effect that; of advantageous one side also should note pair of equipment adequately at the same time (if slide,partial lubricating fluid is washed reach the leak influence to electrical system) can handle a gender with liquid waste. In ensure working environment safety reachs comfortable sex side, this company is devoting oneself to the research that the chloric dissociate of cutting fluid changes recently. Chloric department compound is contained in high load capacity to use cutting liquid as high-pressured lube additive in, when high temperature cutting and useless oily combustion are handled, can produce virulent substance, accordingly, fluid of chloric department cutting already abolished from inside JIS standard. At present each cutting fluid produces the research that manufacturer is having chloric dissociate is changed to develop, with perfecting the new-style cutting fluid with as oily as original cutting same function ceaselessly. The main train of thought that processing technique of dry type cutting develops this company makes work considering aluminium more, the development of production manufacturer of tool of treatment of a few aperture and scientific research orgnaization to processing technique of dry type cutting example is very few, decide to consider to develop by oneself thereby, aluminium auger cut, the target that tap, bore with a reamer is cut and boring treatment method develops as research. In treatment of dry type cutting, chose the treatment of cutting of half dry type with lubricant, refrigeration and platoon bits good performance, means of supply of agent of mist shape cutting regards the main content that studies development as means of supply of exterior mixture interior. Exterior mixture means and the advocated interior such as He Kesi company mix means to compare, the sparge quantity that its can furnish is little. But the freedom that creates a departure to send as the sparge of technical core spends structure of interior of big, main shaft not to need to do alter greatly, accordingly, use on the equipment that can produce in all production manufacturer. Machine efficiency about cutting (feed speed F) and treatment precision, still be in research phase at present, final result is efficiency and precision should excel is wet cutting. This company is the standard outside less than checks a program to be fiducial come set target cost. The technology develops 1 sparge generate the analysis that reachs supply technology to pass all pair of cutting to machine a method to make clear, of sparge generate and supply technique is very main. The sparge that classifies project sparge to generate the stability that does not suffer effect of cutting tool norms generates; to raise sparge to generate quantity; to control; of supply of sparge quantity and sparge pressure sparge to control the sparge inside conduit condense; reduces maintenance of sparge pressure loss and administrative sparge to generate condition monitoring, unusual, sparge is to be in Wen Qiu (pressure of air of have the aid of of part of Venturi) spray pipe blows oil what come loose and generate. Of sparge build capacity main the air pressure with around of the spray pipe in Wen Qiu is poor (say difference is pressed below) about. But the oily aperture as a result of small diameter cutting tool (it is O/H) diameter below small and cannot ensure enough difference is pressed, sparge volume drops very big. To overcome this one weakness, sometimes partial sparge (be restricted only air part) discharge, in order to ensure enough difference is pressed, but should waste air. In addition, because be disperse control, cannot have the accurate control of every kinds of cutting tool, as a result of O/H section accumulating differs and bring about difference pressing to produce change, sparge quantity is very flabby calm. To solve this one problem, development goes lean from transverse blow medicinal powder the structure of fat dose, fall in order to ensure even if presses a condition in lesser difference, the special civil Qiu Li that also can obtain big sparge capability and even if accumulate a condition to fall in different O/H section, also can maintain difference to press constant (stable) new technology, the characteristic of this technology is the restriction that does not accept cutting tool norms, ensure steadily the supply of sparge lubricant. In addition, this technology is after tubing of connect of abolish bent housing, use air to increase implement with intermediate amortize measure, realized utmost ground to reduce the coagulation of the pressure loss of sparge lubricant and lubricant, improved platoon bits performance. Nextpage2 is gotten because get,cut treatment cut the excision that bits cuts inside treatment unit time volume is large, come loose so hot sex is very poor. It is with the bottom outlet of M6 now exemple, its target is worth feed speed set to be 6000mm/min. In beginning a foundation to experiment, because cut bits,stick a knife to cause cut bits to jam and bring about broach to break off in getting channel. Raising the discovery when revolution spends an experiment, auger cut whether closely related on the rails and the temperature that get a tip. The process that breaks off to getting a tip for this has speculation, one of projects that regard an evaluation as broach temperature undertook study. Normally, sparge refrigerant is divide from broach ministry ejective, but get actually cut time very short, be in only this paragraph of time, sparge refrigerant just acts well. In addition, refrigerant eject arrives inside broach groove can restrain stick a knife, but the adverse effect that cuts bits still exists. Accordingly, the structural make it that furnishs refrigerant also can be formed from the structure of refrigerant of eject of the week outside broach, we call this kind of pattern " discharge bits channel mode through broach " , ministry of aperture of its bedspring collet forms raceway groove, the configuration that broach petiole forms raceway groove, aperture to wait, machine a method according to different cutting, its configuration also differs somewhat. Use such configuration, use the blame cutting time such as shift of adjacent, axis to be able to make conglutinate of mist shape refrigerant is getting channel, can achieve the cooling result of mist shape refrigerant. But what should notice is, if the design is undeserved, cannot achieve sufficient cooling and lubricant result, return meeting occurrence block up to cut the eduction of bits instead. To determine reasonable cutting tool shape, counted appearance to undertake investigating to the influence of temperature of point of a knife to different cutting tool geometry, findings makes clear, horizontal blade is repaired grind, core is thick with oily aperture (O/H diameter) impact of pointed to getting temperature is big, among them horizontal blade repairs the influence that grind the biggest. Although the cutting performance of horizontal blade part is bad, but long wear 3 pitch face can make cut bits eduction unobstructed. From this knowable, notice the fluidity that cuts bits is crucial adequately. Undertake to broach coating is handled ameliorable cut bits to stick a knife. Coating material has a lot of, but the coating with good effect is DLC(DiamondLikeCarbon) coating is mixed exceed coating of imperceptible crystallization diamond (1 μ M controls grain diameter, smoother than surface of common diamond coating) . The result that exceeds coating of imperceptible crystallization diamond especially is much better, although F=10000mm/min, also won't arise stick a knife. However these two kinds of coating still exist in the respect such as combinative strength, cost a few a hard nut to crack that need to solve, remain to try to solve later. Because added above skill newly (coating except) , can achieve the feed rate of F=6000mm/min. By mass-produced in broach tatty evaluates a result (because workpiece is rigid small, broach is long, feed speed is reduced somewhat) knowable, do type getting to cut partly wear away small, can come true to be gotten goodly cut the result. 3 thread machining are in thread machining, cutting machines law, rub to make law and mill make a way. What introduce below is the research development example about thread machining, its target is to make thread machining precision achieves excel of form of JIS2 class, tooth wet F=3000mm/min of speed of the tooth form of treatment, feed. The technical task of thread machining is control because cutting function is low and generation is crowded crack cutting, the observation after squeezing the tooth form before cracking cutting to will happen to magnify, the cutting of type of specific humidity of quantity of small collapse caustic of face of right tooth shape is big. High speed thread machining uses helix tap, the horn before the job of its cutting blade is the horn before losing, cutting performance is poor, in wet there is a problem when tap, but there is very big effect when doing type cutting partly. Accordingly, the metabolic condition that causes amount of small collapse caustic with the horn before experiment method is mixed to different helix angle undertook evaluating, its are helix angle as a result small, before part is large, can reduce collapse caustic amount substantially. Additional, the reasonable cutting tool inside and outside that place of the section before using narrates furnishs at the same time the method of sparge refrigerant, can get good whorl tooth look when blind aperture and via tap. By mass-produced treatment cutting tool tatty evaluates a result knowable, tap of type of specific humidity of its wear extent is small still, and whorl tooth form is very good also. 4 bore with a reamer cut what introduce below treatment is the research development example that cuts treatment about finishing aperture of big mental allowance bore with a reamer (diametical 2mm controls) , its target is to make the exterior surface roughness of aperture is achieved 3.

2Rz, circularity is 0.

05, feed speed is F=2000mm/min. The technical task that bore with a reamer cuts treatment is to restrain point of a knife and deep aperture reamer to direct piece stick bits. Bore with a reamer cuts treatment to ask to acquire the treatment quality of high accuracy, accordingly, even if stick a knife dinkily, also can affect the quality of aperture of bore with a reamer. To restrain cutting blade generation sticks a knife, qualitative to the material of the helix angle of reamer, coating and cutting blade etc had a test, the result makes clear, the effect that cutting blade material uses synthetic diamond is optimal. In the past, what deep aperture gets is oriented piece and already machined surface contact to be able to ensure good circularity and exterior surface roughness, accordingly, hard alloy part and already machined exterior contact to be able to be restrained stick bits, form surface of step type much blade the structure that cutting blade make it has first flank, let only contact of first flank part already machined a face, can reduce so form the cutting blade negative charge that already processed a face, ensure good oriented sex is mixed raise treatment precision. 5 equipment are in treatment of dry type cutting, the equipment, processing that cut bits is very important. In treatment of dry type cutting, because do not have cutting fluid to rinse a bits, cut bits to go up easily to generation accumulation and conglutinate are on cutting tool datum plane and produce bearing in clamping apparatus, lathe bed unusual. To solve these problems, make standard standards level should consider dry type cutting is machined from equipment, should design corresponding lathe bed, slideway, clamping apparatus and shield to wait. The expert points out, specific for should undertake is in arising cutting bits namely lower part setting cuts bits to reclaim the air jet that bits cuts on datum plane is blown when workpiece of central chamfer, setting assembles and unassemble device and undertake lubricity coating processing wait to the clamping apparatus, shield that cut bits. But conveying automatically line respect, still have the task that develops the filter cloth cleaning device inside machine. Development of processing technique of dry type cutting is to include sparge refrigerant to make the omnibus technology of supply technology, cutting tool technology and equipment. Will advancing alleged one-time cutting henceforth while treatment and the more efficient processing technique that process with a cutting tool only are developed, return the research that should devote oneself to to cut bits to handle a technology. CNC Milling