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Forming die and method for magnesium/aluminum alloy bimetal composite pipe

A bimetal composite pipe and forming die technology, applied in the field of metal plastic processing, can solve the problems of insufficient dimensional accuracy, poor interface quality of the composite pipe, and difficulty in meeting the high performance requirements of aerospace components, so as to achieve strain softening and improve interface quality. , is conducive to the effect of coordinated deformation

Active Publication Date: 2019-04-05
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still limitations regarding the extrusion process in forming high-performance composite tubular components
Composite pipe components formed by traditional forming processes can be formed, but the obtained composite pipe interface quality is poor and the dimensional accuracy is insufficient, which is difficult to meet the high performance requirements of aerospace components

Method used

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  • Forming die and method for magnesium/aluminum alloy bimetal composite pipe
  • Forming die and method for magnesium/aluminum alloy bimetal composite pipe
  • Forming die and method for magnesium/aluminum alloy bimetal composite pipe

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Embodiment Construction

[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0035] The invention provides a magnesium / aluminum alloy bimetal composite pipe forming die and method.

[0036] Such as figure 1 As shown, the mold includes a forming device, a rotating device and a shearing device 4, wherein the forming device includes a main shaft 1, an extrusion gasket 2, an extrusion core needle 10, an extrusion barrel lining 3, an extrusion barrel 13, an extrusion Die 5 and mold loading extrusion shaft 6; rotating device includes cylindrical roller bearing 7, thrust bearing 17, gear A8, gear B16, sleeve 9, gear box 15, end cover A14 and end cover B18; extrusion cylinder 13 and gear The box 15 is installed on the main shaft 1, the extrusion gasket 2 is arranged outside the end of the extrusion core needle 10, the extrusion cylinder...

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Abstract

The invention provides a forming die and method for a magnesium / aluminum alloy bimetal composite pipe, and belongs to the technical field of metal plastic working. The forming die for the magnesium / aluminum alloy bimetal composite pipe comprises a main shaft, an extrusion gasket, an extrusion core pin, an extrusion cylinder lining, an extrusion cylinder, an extrusion die, a die-filling extrusion shaft, a cylindrical roller bearing, a thrust bearing, a gear A, a gear B, a sleeve, a gearbox, an end cap A, an end cap B and a shearing device. The extrusion cylinder, the extrusion cylinder lining,the main shaft and the extrusion core pin simultaneously move to the right to realize the extrusion forming process, furthermore, repeated rotation of the die-filling extrusion shaft in the extrusionprocess is realized through transmission of the gear A and the gear B, and after the extrusion is completed, extrusion remnant materials are cut off by the shearing device. Advantages of high pressuretorsion and extrusion forming are combined, blank is simultaneously subjected to extrusion and torsion actions, so that the metal flow resistance, the preheating temperature of the blank and the diecan be reduced, and the interface quality and dimensional accuracy of the composite pipe is improved.

Description

technical field [0001] The invention relates to the technical field of metal plastic processing, in particular to a magnesium / aluminum alloy bimetal composite pipe forming die and method. Background technique [0002] Magnesium alloy has low density, high specific strength and specific stiffness, good damping performance and electromagnetic shielding performance, and has broad application prospects in the aerospace field. However, compared with aluminum alloys, magnesium alloys have poorer corrosion resistance and toughness at room temperature, which largely restricts the application of magnesium alloys in the above fields. Based on the idea of ​​composite materials, the magnesium / aluminum composite tube with aluminum as a bushing is a new type of lightweight structure, which can replace the traditional aluminum alloy tubes in the transportation pipelines and support structures of aircrafts and rockets, and further realize the lightweight of aircraft. Quantify. However, th...

Claims

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Application Information

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IPC IPC(8): B21C23/08B21C23/21B21C25/02
CPCB21C23/085B21C23/212B21C25/02
Inventor 钱凌云程兰月孙志辉孙朝阳李月敏
Owner UNIV OF SCI & TECH BEIJING
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