Forming mould of high-toughness magnesium alloy thin-web high-reinforcement forging with flow-dividing bin

A forming die and magnesium alloy technology, which is applied in the field of forming dies for high-strength and tough magnesium alloy thin-walled and high-reinforced forgings, and in the field of forming dies for magnesium alloy thin-walled and high-reinforced forgings. It can solve the problem of flashing and deformation resistance on the surface of forgings Large, dissatisfied and other problems, to achieve the effect of improving surface shape accuracy, improving magnesium alloy structure, and reducing mold pressure
CN101912940AInactive Publication Date: 2010-12-15HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2010-12-15
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a forming mould of a magnesium alloy thin-web high-reinforcement forging, in particular to a forming mould of a high-toughness magnesium alloy thin-web high-reinforcement forging with a flow-dividing bin, solving the problems of insufficient filling, overlarge deformation resistance and the like in the forming process of the traditional thin-web high-reinforcement forging. The split line of a split hollow mould is just coincided with an edge of the forging to be formed; the molded surface of a convex mould and the molded surface of the split hollow mould correspond to each other and form a cavity, the inner side wall of the first split part is provided with a circular-arc rib-plate cavity communicated with a pressure-relief discharge port; the circular-arc rib-plate cavity is 5-10 mm deeper than the actually formed forging, and a cavity of a deepened part is a circular-arc rib-plate flow-dividing bin; the upper sides and the lower sides of two triangular rib-plate cavities are 5-10 mm higher than the actually formed forging, and the cavities of the heightened parts form four triangular rib-plate flow-dividing bins. Because a plurality of flow-dividing bins are arranged in the proper positions of the cavities, the flow resistance and the flow direction of metal are improved, the closed precise mould forging of magnesium alloy is realized, the forming precision of parts and the qualified rate of a finished product are improved and the mould pressure is reduced.
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Description

technical field

[0001] The invention relates to a forming die for magnesium alloy thin-belt and high-reinforcement forgings, in particular to a forming die for high-strength and toughness magnesium alloy thin-belt and high-reinforcement forgings with a split chamber, which belongs to the technical field of forging forming technology. Background technique

[0002] Magnesium alloy has the characteristics of high specific strength, high specific stiffness, good thermal conductivity, good electromagnetic shielding, good vibration damping performance, and recyclability, so it is increasingly becoming an ideal substitute material for modern industrial products. However, magnesium alloys have a close-packed hexagonal lattice structure, poor room temperature plasticity, and limited plastic forming processing capabilities, which limit the application range of magnesium alloys in high-performance structural parts. Especially for high-strength and toughness magnesium alloy components, ...

Claims

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