METHOD FOR FORGING SEMI-SOLIDIFIED ALLOY AND FORGING DEVICE THEREOF

PROBLEM TO BE SOLVED: To provide a method for forging a semi-solidified alloy capable of promptly filling a semi-solidified material in the whole area of a metal mold as much as possible, and manufacturing a product with satisfactory quality with sufficient pressure applied to the whole while the semi-solidified material maintains fluidity, and a forging device thereof.SOLUTION: The present invention provides a method for forging a semi-solidified alloy for pressurizing a semi-solidified material 11 consisting of an Al alloy or an Mg alloy to be molded by using metal molds 12, 13 to be paired, and a forging device 10 thereof, in which a recess 15 for arranging the semi-solidified material 11 is formed in one metal mold 13, the other metal mold 12 has: a pressurization part 18 of the semi-solidified material; and a closed space formation part 20 movably provided in its pressurization direction, after arranging the semi-solidified material 11 in the recess 15 of the metal mold 13, a parting surface 19 of the metal mold 13 is abutted against a parting surface 27 of the closed space formation part 20, the semi-solidified material 11 in the recess 15 is pressurized and molded by the pressurization part 18 while suppressing insertion of the semi-solidified material 11 into the parting surfaces 19, 27.SELECTED DRAWING: Figure 1 【課題】半凝固材料が流動性を維持している間に、半凝固材料を金型内全域に可能な限り素早く充填させ、全体に十分な圧力がかけられた良好な品質の製品を製造可能な半凝固合金の鍛造方法及びその鍛造装置を提供する。【解決手段】対となる金型１２、１３を用いてＡｌ合金又はＭｇ合金からなる半凝固材料１１を加圧し成形する半凝固合金の鍛造方法及びその鍛造装置１０であり、一方の金型１３には、半凝固材料１１を配置する凹部１５が形成され、他方の金型１２は、半凝固材料の加圧部１８と、その加圧方向に移動可能に設けられた閉空間形成部２０とを有し、金型１３の凹部１５内に半凝固材料１１を配置した後、この金型１３のパーティング面１９と閉空間形成部２０のパーティング面２７とを突き合わせ、これらパーティング面１９、２７への半凝固材料１１の差し込みを抑制しながら、加圧部１８により凹部１５内の半凝固材料１１を加圧し成形する。【選択図】図１