1 foreword attenuates pull deep Yinjikejia industry measure precision tall, surface is bright and clean in spend good part and be being applied extensively at light industry and electronic industry, increasing also ground uses stainless steel to machine all sorts of cupping deep product, and the effective method of figuration cupping deep product will be pulled namely deep craft and attenuate pull deep craft union to rise [1. The influence attenuates the main factor that plays dark take shape is to attenuate function of cone angle of coefficient, sunken model, material and grind coefficient, through recording deformation force curve, can analyse getting all sorts of factors is how to be affected be out of shape of the process, the analysis can use directive production to carry out as a result. But the heavy and complicated that because prepare experiment of art of mould of test of sample, treatment, charge for the making of sth. to wait,works, the data that manual provides does not suit new material again, still encounter many difficulty when undertaking actual technology design and mould are designed. Finite yuan after the method was solving a large number of stretch problems successfully, be approbated by the expert of plasticity domain and scholastic place again, it is out of shape in imitate the process, position getting power that forecasts mould of the preform flow in the mould, analysis, forecast shape blemish and the action that optimize the respect such as craft parameter to rising to cannot be replaced, home had many scholars to undertake forginging the research of the respect [2, 3] . Plasticity is finite yuan of method is common with firm plasticity finite yuan theory is a foundation, again complementary stronger around handles a function, its imitate result is had intuitionistic and wait for a characteristic reliably, it is the capable assistant that the engineer has design of technology research, technology and mould are designed. But pull to attenuating deep undertake finite the article of yuan of imitate research is very few, pulling deep imitate to consider to attenuating basically is sunken model cone angle the influence to figuration. The article basically studies different deformation is right the influence of deformation force, earnings result and experimental result photograph are compared, deformation force agrees along with the metabolic rule of deformation, the result is more adjacent, have direct effect to actual production. The analysis of 2 imitate and experimental result this literary grace undertakes attenuating pulling with MAFAP system deep finite yuan of imitate. Single standard attenuates the condition getting power that pulls deep mould structure and semifinished product is shown 1 times like the graph, sunken model cone angle is 15 ° , in be out of shape internal diameter of semifinished product of form of the canister in the process is basic and changeless, the wall is large attenuate. The size of deformation is used attenuate coefficient T1/t0 expresses, attenuate coefficient is smaller deformation is bigger, figuration power is greater, the workpiece when the intensity that exceeds place figuration part when figuration force is destroyed. Namely, attenuate of coefficient choose the success that matters to craft directly, and the limit that decides material attenuates coefficient is the premise that makes right choice. Graph the condition getting power of 1 semifinished product this laboratory is SUS304 with material, attenuate pull use canister form semifinished product greatly by common pull deep hind cut edge, anneal to get, dimension is (Mm) : D=9. 2, T0=0.
82, H=25. Finite the change that follows time sees reseau of yuan of imitate semifinished product graph 2, finite the reseau change of around of yuan of reseau of the redraw in imitate process sees a picture 3. Graph reseau of 2 semifinished product pursues along with the change of time 3 draw late strength -- journey curve single standard attenuates draw late strength -- if journey curve pursues show 3 times, the odd model that imitate and experiment get attenuates if the relation of coefficient and force of the biggest figuration pursues 4 show, graph the 5 equivalent meet an emergency that stop hour workpiece to go up to be out of shape distributing. Graph 4 single standards attenuate the relation of coefficient and figuration force pursues the equivalent meet an emergency of 5 workpiece distributings graph by the graph 5 visible, attenuate pull deep when, attenuate coefficient is smaller, deformation is bigger, figuration power is greater, imitate result and experimental result have same tendency, and adumbrative sheet model attenuates pull deep limit to attenuate coefficient is 0.
52. Both is in because computation is medium,the difference on deformation force is adoption workpiece geometry measure and experimental semifinished product differ cause. 3 conclusion what the article pulls deep deformation force and deformation relation to undertake to attenuating is finite yuan of imitate and experimental research reach the result that agrees basically, the specification is finite yuan the method is the powerful tool that has attenuating helping deep research, attenuate about single standard pull deep limit to attenuate coefficient is 0.
52 is having fundamental value to project application, article research is pulled to beginning pair of models to attenuate mix greatly much model attenuates pull deep research to have referenced value. CNC Milling