The treatment of large work

305m) , the journey of Y axis is 12ft. Some add workpiece to ask to use the Y axis route of the sort of span greatly. Graph mill of profile modeling of outline of 1 5 axes is the machine tool of the biggest treatment in this workshop this workshop is founded by company of Dowding Industries industry, 2008 practice, it is a contract contracts manufacturer, main treatment produces the large part that exceeds groovy measure. This company opened this independent treatment business, built a new factory building for this, so that satisfy day of wind report that postpones inereasingly,the industry machines the need of the service. Regretful is, after this workshop practice before long, got the blow of economic depression tide. The increases workpiece order of wind- driven dynamo also decreases in succession. For fill its productivity, this workshop must seek the treatment business of other, include to produce part of production machine tool for MAG company among them. But see wind-force generates electricity eventually now the treatment business of the industry had improvement gradually. Recently, gear-box of wind- driven turbine (graph 2, 3) queueing up to expect treatment in the workshop, and the workshop also begins the steel structure of word of 30ft long-term hired hand of mast of wind- driven to be being used at building turbine (graph 4) undertake machining. Graph 2 gear-box part often is on milling machine of a boring undertake thick cutting machines a graph above all 3 gear-box divide a cast part to machine a graph into the factory normally 4 the course is built in establishment of wind- driven turbine in, also use get the Nextpage of I-steel structural member that cuts treatment manager Mr Gary Meyers of this factory, be recruited to assist construction in its before this factory, once worked for workshop of a mould. The personnel staff here is not much, mr Meyers is one of 5 staff members of this factory, but there are 4 machine tools only in the workshop (it is bed of large scale computer entirely) , the staff member that perhaps recruits such amounts is appropriate. Such covering an area of the area makes the staff member's amount appears a few less it seems that. When crossing this cool and capacious production workshop, you can discover this job shops is different from those production to have the job shops of typical size part more in other side. Mr Meyers says: "Next problem and measure and thoughtway is concerned, it makes the treatment of large part created different situation. " bath is in cool environment on large part, all sorts of factors that affect its to machine precision can be gone to by enlarge such on the dot, so that they must be adopted,want the measure with more severe part of more average than treatment size. Among them temperature perhaps is the mainest factor in these elements. The temperature inside the workshop of Dowding company holds the constant temperature position in 20 ℃ . Inside an a few feet span limits, the metal that every degrees of temperature changes expands effect, even can enough influence is taken relative to the tolerancepublic errand dimension of moderate. Be based on this reason, component often needs to place in the workshop, if let a large part maintain the constant temperature condition in 20 ℃ to fall, this is meant, before the spare parts prepares to machine, these spare partses still need the time that waits to lay aside a few days. The stress that eliminates work is in the workpiece of average size, the stress of material often is another factor that is ignored by people, but to large part character, this become a very main factor. To large cast, mr Meyers emphasizes saying, want to implement effective treatment technology, the stress that removes material is one of a when its are faced with bigger challenges actually. In the workshop, use MAG Giddings&The rough machining workload of milling machine of Lewis company boring, what must withhold with its, enough finish machining abundant maintains a balance between the quantity, the need when treatment is enough spend gently, but should achieve enough depth, in order to eliminate the relevant deformation problem that its stress creates, may affect the precision of finish machining otherwise. 5 axes are gotten cut treatment to be in large on the main shaft of machine tool of 5 axes linkage, its rotate journey limits of the axis, it is very important to be machined to milling not only, and offer to the machine tool fast and efficient auger it is very important also to cut process capability. For example, i-steel structural member, requirement along its whole length, go up to be machined into travel bore in its surface. The U5 of Dowding company machine tool can compare machine tool of other long distance, machine these spare partses with rapidder rate, because of its main shaft can be in - the limits inward turning of 90o~+100 ° turns. This means this main shaft to be able to reach all bore diameter range in, can achieve that is to say among them those aperture in a flange, those aperture of inter part and those aperture in opposite flange, and workpiece needs one-time shift trial assembly to get stuck only. Bed of large scale computer also may turn Bench Machine Tool into the machining center that there is company of an Amera Seiki in this factory (graph 5) , its journey is 6ft × 5ft. former to Dowding company old plant, this can calculate going up is a bed of large scale computer, but put inside this workshop, become a quite small machine tool. However nevertheless, mr Meyers says, this machine tool belongs to this workshop after all. One of accounts that retain this machine tool are, it is applied to treatment has only into plant measure or two small lot spare parts, and other machine tool equipment often need to run the part that machines bigger batch. Another reason is, the device of swing of large overhead traveling crane here, make machine tool equipment more use easily. Mr Meyers says, having this machine tool is very valuable, because this machine tool can let his machine small lot spare parts with better cost effectiveness, the part with too little batch is undeserved use bigger with higher treatment facilities. The machining center of company of graph 5 Amera Seiki although its journey cannot be compared with photograph of mill of large outline profile modeling, but regard a large scale computer as the bed, have greater than a Bench Machine Tool sense to pursue the large overhead traveling crane inside 6 this workshops, before with its the use environment photograph of minor part compares hoisting, the requirement of dimension of certain public errand that can let a machine tool develop taller use efficiency precision to be equal to cast of speed wind-force turbine is stricter, include the parallelism between its front and the reverse side among them for 0.

002in (1in=2.

54cm) , and its are the biggest the belt of public errand of milling treatment diameter of bore diameter is 0.

001in. On so immense work, to reach so exact tolerancepublic errand size, its are truly exclusive and practical the means taking a knife that the method uses semifinishing machining namely, measure next, final repass more accurate treatment. In other words, want to achieve nicety to machine the purpose of tolerancepublic errand dimension on large work, had better use scrupulous treatment means. Accordingly, dowding company depends on the treatment precision of its U5 machine tool, not only the tolerancepublic errand size that decided what kind of this workshop can maintain, and also decided it can maintain the productivity with high what kind. In view of enterprise of a few war industry and technology company, include MAG company among them, be designed recently and developed a kind of new bulk error to compensate craft, accordingly this workshop plans to raise the precision of its machine tool further even. If adopt this one technology, can make the precision of the machine tool reachs higher level even, so this workshop aux will be able to expresses taller hope to treatment cycle quite, perhaps fall in certain circumstance, compare with former horizontal photograph, the likelihood needs time of fewer treatment taking a knife only. Such, the large work with OK and direct faster translate into machines the treatment precision of the machine tool speed. CNC Milling CNC Machining