Semisolid mold forging is a major type of semisolid processing, which isdifferent from neither traditional mold forging nor traditional permanent casting. However,processing defects are often seen in work pieces becau...Semisolid mold forging is a major type of semisolid processing, which isdifferent from neither traditional mold forging nor traditional permanent casting. However,processing defects are often seen in work pieces because of lacking available rules for the processdesign and control. Some basic rules for the process design and control, simply named the shortestflowing length, pressure filling and the minimum uplifting mold pressure, are advanced in the paperbased on amount of researches and experiments. The equations to determine the major processparameters are given out such as the filling pressure, forming pressure and locking mold pressurefor the process design and control. The rules and equations are experimentally proved available andapplicable by several actual work pieces produced by the semisolid forging process.展开更多
On the bases of high temperature creep experiments, the research on engineering application of rheological forming is carried out on two kinds of light metal alloy parts named cylindrical shell of Lc4 aluminum alloy a...On the bases of high temperature creep experiments, the research on engineering application of rheological forming is carried out on two kinds of light metal alloy parts named cylindrical shell of Lc4 aluminum alloy and vane disk with complex curved surface of TC11 titanium alloy. Moreover, the mechanical property tests under room and high temperatures for the workpieces produced by this new technique are also done, the results showed that they are much improved evidently compared with those produced by traditional method.展开更多
文摘Semisolid mold forging is a major type of semisolid processing, which isdifferent from neither traditional mold forging nor traditional permanent casting. However,processing defects are often seen in work pieces because of lacking available rules for the processdesign and control. Some basic rules for the process design and control, simply named the shortestflowing length, pressure filling and the minimum uplifting mold pressure, are advanced in the paperbased on amount of researches and experiments. The equations to determine the major processparameters are given out such as the filling pressure, forming pressure and locking mold pressurefor the process design and control. The rules and equations are experimentally proved available andapplicable by several actual work pieces produced by the semisolid forging process.
基金supported by the National Personnel Department for returned talents(lincaipeizi[2001]30#)the Education Ministry of China for the university with doctoral discipline (No. 200805380004)
文摘On the bases of high temperature creep experiments, the research on engineering application of rheological forming is carried out on two kinds of light metal alloy parts named cylindrical shell of Lc4 aluminum alloy and vane disk with complex curved surface of TC11 titanium alloy. Moreover, the mechanical property tests under room and high temperatures for the workpieces produced by this new technique are also done, the results showed that they are much improved evidently compared with those produced by traditional method.
