Manufacture method for magnesium alloy product

Abstract

A manufacture method for a magnesium alloy product includes steps of: providing a mold comprising a upper mold and a lower mold, the upper mold having a punch, the lower mold having a cavity, the punch being adapted to be accommodated in the cavity; heating the mold so as to increase the temperature of the cavity to a determined degree; placing a magnesium alloy billet in the heated cavity; and compressing the upper and lower molds so as to drive the punch to deform the magnesium alloy billet to a magnesium alloy product having a shape corresponding to the cavity. The punch in the cavity and an inner wall of the cavity are configured to have a gap of 0.05 mm˜0.1 mm.

What is claimed is: 
     
         1 . A manufacture method for a magnesium alloy product, comprising steps of:
 providing a mold, the mold comprising a upper mold and a lower mold, the upper mold having a punch, the lower mold having a cavity, the punch being adapted to be accommodated in the cavity;   heating the mold so as to increase the temperature of the cavity to a determined degree;   placing a magnesium alloy billet in the heated cavity; and   compressing the upper and lower molds so as to drive the punch to deform the magnesium alloy billet to a magnesium alloy product having a shape corresponding to the cavity;   wherein the punch in the cavity and an inner wall of the cavity are configured to have a gap of 0.05 mm˜0.1 mm.   
     
     
         2 . The manufacture method according to  claim 1 , further, before the step of heating the mold, comprising a step of:
 measuring the temperature of the cavity, and heating the mold according to the measured temperature.   
     
     
         3 . The manufacture method according to  claim 1 , wherein the mold comprises a heating pipe arranged inside thereof, and the heating pipe is configured to heat the mold. 
     
     
         4 . The manufacture method according to  claim 1 , wherein the magnesium alloy billet is an extrusion magnesium alloy. 
     
     
         5 . The manufacture method according to  claim 1 , further, before the step of placing a magnesium alloy billet in the heated cavity, comprising a step of:
 heating the magnesium alloy billet to 300° C.˜500° C.   
     
     
         6 . The manufacture method according to  claim 5 , further, before the step of placing a magnesium alloy billet in the heated cavity, comprising a step of:
 heating the magnesium alloy billet to 350° C.˜450° C.   
     
     
         7 . The manufacture method according to  claim 1 , wherein the predetermined degree is configured in a range of 150° C.˜300° C. 
     
     
         8 . The manufacture method according to  claim 7 , wherein the predetermined degree is configured in a range of 180° C.˜250° C. 
     
     
         9 . The manufacture method according to  claim 1 , wherein the step of compressing the upper and lower molds is realized by a hydraulic press configured to supply press upon the upper mold. 
     
     
         10 . The manufacture method according to  claim 9 , wherein the hydraulic press is configured to have a press speed of 10 mm/sec˜15 mm/sec.