Landing gear expert Meixiai (the method that branch of Messier-Dowty) aviation England had spent past lustrum to develop a kind of efficient, economy, machine these high quality, complex titanium alloy part, including the help that comes from hill tall cutting tool and proposal among them. The Meixiai that becomes British Gloucester when the large construction part that is used at plane landing gear when the pillar of the factory, the challenge that by Boeing place of beam of the pillar on 787 dreams plane poses had experimented to this company is determined entirely and devise mastery of a skill or technique. This basically represented the titanium alloy of next generation because of the 5-5-5-3 material that develops technically, when this project was returned in the begining 2003 nonexistent applicable cutting cutting tool. "The intensity weight that this kind of material has been developed to be used at offerring to make a person impressive is compared, " Philip Spiers of production development director explains. "The empty machine weight of the plane is managing 1% can make fuel is used up decrease 3% , redound is remarkable, especially the 30% above that current fuel held airliner totle drilling cost. " machine a solution to conduce to development, supplier of many when Meixiai invited elaborate choice outstanding tool comes consultative " quicken craft to develop " target. Have treatment formerly " standard " the first time cutting that the hill tall cutting tool of titanium alloy experience spread out it 2004 experiments. Although efficiency and cost are main drive element, but these things that yearn for pursuit can be cost with sacrificial quality anything but. As more than 130 tons fall master piece is used on every pillar beam, do not allow to machine the spare parts with poor quality absolutely. Moreover, every semifinished product should cost a lot of with the 1000 pound that are an unit: Production gives reject to cannot make an item that be chosen completely, represented the contract of the first business of the landing gear that Meixiai gains from Boeing when this project especially. Be used to executive titanium alloy forgings the milling machine of DST Droop &Rein CNC that the machine tool of wool blank rough machining is a 6 main shaft. Although factory of Gloucester of its far from is newest model, mr Spiers says: "Can equal without the company on the world it the unit cost of every main shaft. " the headstock of the gear drive with this peculiar machine tool provides high power when inferior main shaft rotate speed. Life compares the cutting tool that acquires from to come with the second only the case with a bit good computation (the heat with extremely high ascribe and cutting force) begin, the mountain that the expert that the David Pearson that includes England and Dave Todd and more come from headquarters of Shan Gaorui allusion forms is tall cutting tool group begins to adopt point of view of microcosmic to cutting blade geometry revise those who will acquire property to rise considerably. With the capable person that having qualitative grade experiments and adjust series connection of cutting strategy, parameter to be together continuously, this brings about Spiers to name now for " a stability, but reduplicative craft " progress comes into being. The solution is to be based on the corn milling cutter that uses 80mm of a diameter (R220. 69Power Turbo) and change the 20mm round bit that make of 5 (RPHT.
The profile modeling milling cutter of 2006) (R220.
29) , it is a when be based on T350M of qualitative grade of hard alloy material special mutation. This cutting tool is used at inserting the profile of mill forging, this rough machining wants from purify of spare parts surface about 30mm surplus. "To this treatment, we have to must want to come true ' target ' cost. " Spiers says. "If we assume the ratio of target cost is ' 1 ' (that is us present condition) , in first our located after cutting experiments ratio is 1.
6, that shows our distance finishs this project to still have many far. Basically, pass the collaboration of we and tool supplier, rough machining time had cut down 60-70 % . " unfeignedly of Spiers praises hill high group is in the effort that the project predicament that is full of a challenge for this offers solution place to make. "We must return basic fact, " he says. "Of material stylish, without off-the-peg parameter, that means us to must guess initiative ' optimal dot ' the train of thought that differs through the attempt will improve a solution. The production engineer that this is a Meixiai and tool supplier develop new thinking in tandem and use its at the case of the experiment. " " the simple application that adopts existing technique, ultimate solution has not been come out by examine, but the capacity that the engineers of experience had shown a production issue with be solved thorny. Coming from hill tall knife to provide the collaboration that is in brotherly company of France with us here is first-rate all the time, direct expression offers optimum solution to the work is begun on specific level. " but, meixiai and hill tall cutting tool still do not have complete end this project. "We realize our cost is rising, so we must want the profit margin with do so that more just can ensure better, " Mr Spiers says. " because such, we are cooperating cheek by jowl in film respect with hill tall cutting tool, the hope can obtain bigger gains. " Meixiai revealed the resolution that give to mirror British aviation the innovation spirit in a century, samuel Franklin Cody is in what two years an aviation exhibits British Farnborough(to hold the ground) undertake succeeding first, continuously, the flight that motivation prompts is apart from today already 100 years. Since 1908, the technology is already a few bannerer perhaps, but its spirit is remained same. CNC Milling