The treatment method of aviation unifinication component

Time:2023-06-26 12:22:55
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source:ELAND CNC Machining

Aviation of Spanish forward position makes enterprise Toyo Matic repose at the south of Braganca Paulista, this company offers a product for the important client of America, Europe, Asia. Depend on these clients, toyo Matic let Brazil become the center that contemporary nicety machines. This company had managed 20 years, challenge all sorts of jobs that finish almost impossibly as always. Meet a challenge now, manufacturer of main aviation spare parts people manufacturing the unifinication part with smaller weight eagerly, "The job that finishs almost impossibly " the global demand that makes a client. Recently, the synthesis of component of adjusting control of a few hydraulic pressure that Embraer of Brazilian aircraft manufacturer is trying to board ERJ-170/190 date plane is unifinication component, but he discovers this job is done not have absolutely so simple. The 8 treatment company that comes from 3 countries all cannot find the optimal method that machines this component, face such fact, embraer abandons nearly, preparation finds his way additionally. Fortunately, a home to return to that this design finds in its birthplace Brazil -- Toyo Matic. "Up to now, this is the most complex component that we encounter, " Da Rosa say, "We cost time of a few months to explore treatment measure. " this workpiece material is 7075 aluminium alloy character, include the alternate closed pore with much deeper direction, the smallest aperture has 2mm only. Besides, still other and many hole, groove, curved surface waits, normally tolerancepublic errand needs to achieve 6 μ M. This job asks the independent CMM that amounts to 160 times checks, form the report of individual inspection of sub-assemblies of 61 pages finally. Through optimizing cutting, toyo Matic successful ground is abate the inducement that causes an error: Oscillatory, hot growth and the cutting tool that cut bits to cause are jumpy, solved the problem that puzzles other for a long time from this. "We cut operation measure to 6 paces, " Da Rosa explanation says, "But we should use 112 cutting tool! " solution and the method that decide cutting tool ability finds optimal treatment program normally are different, da Rosa took a kind of directer kind. "Want time to allow only, I can make my cutting tool, " his explanation says, "Such doing have a lot of profit. " make cutting tool through oneself, da Rosa can be in the control of cutting length rate of every cutting tool optimal value -- although use the shortest cutting tool,finish treatment job. Standard cutting tool applies to a variety of treatment, but this kind of longer cutting tool produces axial more easily jumpy, deviation and vibration. When chamfer of common in undertaking aviation is machined heavy laden mill is operated, these phenomena are more apparent. The method that solves these problems normally is to lower feed rate, but so undoubted meeting lengthens treatment cycle and can bring about new issue, when processing the horniness data such as titanium alloy especially, reduce feed rate to will bring about Mao Bian and treatment not free. In the meantime, because cutting is abate, the quantity of heat of brim of point of a knife will urgent accumulate suddenly, shorten greatly cutting tool life. "Change the cutting tool of appropriate length is a kind of better solution, " Da Rosa tells us, "But who is good program thinkable. " is need used longer when cutting tool undertakes deepness is machined how? Carry out a proof, of Da Rosa optimize plan to succeed again. He makes the cutting tool with length accurate essence, cooperate to use the 40 blade holder with 50 taper, install directly next go up in main shaft. Cancelled knife handle thoroughly, also with respect to avoid one causes jumpy main factor, the angular momentum of cutting tool is reduced greatly, balance function nature is better. Such design increases high speed the vibration that man-hour produces to fall to lowest. Beyond question, such design brought the double bumper harvest of precision and crop. "Use oneself cutting tool, our rate can rise 30% , " Da Rosa says, "Business of American other production needs the treatment project that 12h completes at that time, we need 8h only, the course is improved now, we can be finished with 5h only. " in the course that pursueing efficiency and precision, eliminating to cut bits quickly also is an indispensable respect. Da Rosa special statement: "The likelihood that cut bits damages workpiece and cutting tool. " deepness bore is worth to pay close attention to especially -- to achieve high accuracy, he often is used reduplicative retreats knife cooling fluid or can use special feed rate. Machine deepness bore landing gear for Canadian Bombardier company pillar is a very good example. Place grows the Ha Si SL-40 of 375mm for boring lever with type, deployed the cooling fluid hose with older diameter, good stuff diameter is 80mm, cutting arises all cut bits for big helix shape. The mechanical engineer of Toyo Matic uses heavy cut to ensure a bits is complete in order to reduce the vibration of long cutting tool designedly, although small cut bits to be able to be promoted,come loose hot, but cutting chunk cuts bits to be able to make precision taller. Use the auxiliary and cooling pump of high capacity, the tube that carries join boring pole to cooling fluid of eject of SL-40 whole workpiece, toyo Matic was solved successfully medicinal powder hot issue. If optimize the half that cutting tool is Da Rosa successful recipe,Nextpage optimizes cutting tool, so optimizing clamping apparatus is additional half. From simple perforative bolt board to complex 4 axes and clamping apparatus of 5 axes brim, have everything that one expects to find. Outfit card can undertake multiple treatment is the pursuit of our constant. Use a few simple methods, da Rosa maintained the fine that processes for chamfer of bolt type mill in great quantities to allow to spend. Among them a method is will perforative bolt " extruding " 5 ° . All bolt Kong Jun to workpiece lower part " focus " the point of view with tilt proper. Bolt aperture tilts can let workpiece get flank pressure, with common semifinished product and clamping apparatus plane attrition force photograph is compared, such design can prevent workpiece to slide better. "Extruding " the concept can be applied extensively at metals of all sorts of horniness of stainless steel etc. Although workload is much,went out a few, but such operation can be on guard however when deepness mill chamfer precision of a lot of influence and the potential problem that is discovered not easily. Toyo Matic often also uses another kind of method to prevent workpiece to slide, machine the dovetail with a few deep 4mm in bottom of preform of 6061 small aluminium alloy already, the cut that just goes up with clamping apparatus matchs. To make treatment fluent, the major move that this factory takes still includes to define tailstock clamping apparatus oneself, use this method, install card to be able to accumulate preform to cardinal principle each undertake deepness mill chamfer is operated. Da Rosa proper motion assembled system of tailstock clamping apparatus, include line course and alone pneumatic brake, use at a series of VM-3 vertical machining center that provide HRT-210 revolving stage. This system is adjustable length, open mode trunnion can firm clip holds large work. When processing large work, the system of tailstock clamping apparatus of adjustable length installs Toyo Matic meeting general to go up in machining center of vertical of VR-11 5 axis, this machine tool can offer bigger whirl interstitial. "I bought the first VR-11 in Brazil, " Da Rosa tells us, "This machine tool does not have the ground of special use force at that time, but we know, want a client to see this machine tool only, they can let us help them process the large work with precision very high demand certainly. " trust and groom Da Rosa 1997 year bought VF-1 of machine tool of the first Ha Si, the expression of this machine tool makes him very satisfactory, because this is in next 10 years he purchased machine tool of 13 Ha Si again. "Because its operation is simple and easy,I choose Ha Si machine tool, maintain convenient. Our place agency very bear the blame, maintenance reachs the designated position in time, because this buys these American machine tools,we do not have trouble back at home, " then Da Rosa complement says, "These machine tools are tectonic and excellent, wear well. " besides proper motion the design is fought brace up outside cutting tool, da Rosa still organizes in-house personnel to undertake grooming. "Groom without very good machining here the school, then talent of invite applications for a job of our proper motion undertakes grooming to them, " Da Rosa explains, "Brachylogy of education of Ha Si machine tool understands easily -- compare with the machine tool photograph of other trademark, setting of Ha Si machine tool is more reasonable, intuitionistic. " perhaps was to get the influence of Toyo Matic, the enterprise that is located in Braganca Paulista other to develop ceaselessly bought Ha Si machine tool in succession, come so easier recruit goes to Toyo Matic right stuff. The United States does not make long-term treatment contract normally, because this Toyo Matic needs the actual strength of hour proof factory in order to win more order -- result Toyo Matic develops flourishingly ceaselessly. Outside removing aviation product, the company still makes a piston for general motors, make water pump, oil pump for Woerwo, make special cutting tool for OSG company. Now, that Japan company of Da Rosa original effectiveness also became his important client. CNC Milling