Study On Intergral Forming Process With Multi-direction Loading Of T-shaped Tube

According to the domestic and foreign T-shaped tube, the warm extrusion and The Magnesium Alloy distortion rule and the formed craft research results, in view on the present automobile, motorcycle's engine T-shaped tube and the bicycle frame's three fork attachment existence questions, have proven the magnesium alloy AZ31 T-shaped tube, may reduce chassis's weight greatly, use the uniform temperature press forming, reduce the metal resistance of deformation, reduce the mold loss, reduce the formed working procedure, enhance the metal formability, this may provide for the magnesium alloy hot forming technology development research profits from, the universal significance which has.This article takes finite element simulation manufacture software MSC-SuperForm2005 as a platform carried on the three dimensional finite element numerical simulation. Analyze the T-shaped tube uniform temperature extrusion multi-direction load whole forming way multi-direction synchronization to load, the multi-direction distribution to load, the multi-direction order to load, separately to its load time--speed chart, the metal flow velocity vector chart, the equivalent strain chart and the load--traveling schedule curve has carried on the numerical simulation, passed compared with, obtains multi-direction step by step loads for the craft plan which is most reasonable, most reduces effort.In view of the craft plan, discussed the different distortion temperature, the strain rate and the friction condition emphatically to the distortion process equivalent strain, the equivalent stress as well as the extrusion pressure traveling schedule curve influence, obtains in the temperature 350℃, under the friction factor 0.01, extrusion speed 100mm/s condition the forming is best, serves the manufacture high accuracy T-shaped tube purpose.According to the above analogue result, unifies this components the unique feature, in has analyzed above T-shaped tube craft difficulty foundation, has worked out the best craft plan. Has chosen the reasonable semifinished materials shape, the heating temperature, the lubricant and the extrusion pressure according to this plan, regarding this has carried on the mold design, and has designated the complete installation.