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

Inactive Publication Date: 2010-12-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of insufficient filling, cracking, excessive deformation resistance and flashing on the surface of the existing hig...

Method used

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

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Effect test

specific Embodiment approach 1

[0008] Specific implementation mode one: as Figure 1-9 As shown, the forming die of the high-strength and tough magnesium alloy thin-walled high-reinforced forging with a shunt chamber described in this embodiment includes a punch 14 and a split die 19, and the split die 19 consists of a first split die 19-1, the second split 19-2, the third split 19-3, the fourth split 19-4 and the die bottom 19-5 are composed of five parts, and the five parts together form a truncated cone shape. One split 19-1 and the third split 19-3 are arranged oppositely, and the second split 19-2 is arranged opposite to the fourth split 19-4. When the punch 14 and the split die 19 were closed, the convex The mold 14 is tightly inserted in the cavity of the split die 19 and completely coincides with the cavity of the split die 19; there is a pressure relief discharge port 11 on the upper part of the inner side wall of the first split die 19-1 , the split line of the split die 19 just coincides with th...

specific Embodiment approach 2

[0011] Specific implementation mode two: as image 3 , 4 , 7 and 8, the forming die described in this embodiment also includes a punch web shunt bin 15-1, on the profile surface 14-1 of the punch 14 corresponding to the non-connecting end of the web, there is a The punch web distribution chamber 15-1, the punch web distribution chamber 15-1 communicates with the web cavity 24-3; the height H3 of the punch web distribution chamber 15-1 is the height of the actually formed forging 1 to 2 times the thickness of the web. The web distribution chamber is set on the profile 14-1 of the punch 14, the web of the formed forging is fully formed, and it is easy to process the web distribution chamber on the profile 14-1 of the punch 14, but the web of the formed forging needs to be for processing. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0012] Specific implementation mode three: as Figure 5 and 6 As shown, the forming mold in this embodiment also includes a die web splitter bin 15-2, and the die web splitter bin 15-2 is arranged in the third split lobe corresponding to the web cavity 24-3 On the inner side wall of 19-3, the die web distribution chamber 15-2 communicates with the web cavity 24-3, and the bottom end surface of the web cavity 24-3 communicates with the die web distribution chamber 15-2 The bottom end surfaces are located on the same horizontal plane, and the length of the die web distribution chamber 15-2 is 1 / 6 of the length L of the web of the actually formed forging. The difference between this embodiment and the second embodiment is that the setting positions of the web shunting bins are different. For the web that requires no further processing after forming, the web shunting bin (die web shunting bin 15-2) can be set on the split die. At this time, the die structure is more complicated,...

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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.

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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Application Information

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IPC IPC(8): B21J13/02B21K29/00
Inventor 单德彬徐文臣黄晓磊徐福昌
Owner HARBIN INST OF TECH
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