Extrusion forming method of thin-walled near-contour mountain-shaped light alloy component

Abstract

The invention discloses an extrusion forming method of a thin-wall near-contoured chevron light alloy member, which relates to an extrusion forming die of the thin-wall near-contoured chevron light alloy member. The die comprises an upper die assembly, a lower die assembly, an ejection device, material ramming device, a fixed component and a movable component, wherein the upper die assembly, the lower die assembly and the ejection device form a forming part outer ring wall channel, a corner channel and a forming part inner ring wall channel. The method comprises a first pass extrusion formingand a second pass extrusion forming, wherein the first pass comprises the following steps of extruding and forming the bottom and the outer ring wall of the chevron piece through the corner channel and the outer ring wall channel, and then ramming, demoulding and ejecting, and in the second pass, extruding and forming the inner ring wall of the chevron piece through the inner ring wall channel. According to the extrusion forming method of the thin-wall near-contoured chevron light alloy member, the precise plastic forming of the thin-wall near-contoured complex chevron member is achieved, theproblems brought by the traditional processing and manufacturing die are effectively overcome, the formability of the light alloy is improved, the comprehensive mechanical property of the formed member is improved, the material utilization rate is greatly improved, the energy is saved and the consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of plastic processing and forming of metal materials, in particular to an extrusion forming method of a light alloy member with a thin-walled near-equal mountain shape. Background technique [0002] With the rapid development of my country's aerospace technology, high-tech weaponry and marine development, thin-walled near-alpine-shaped light alloy components (thin-walled near-alpine-shaped components refer to the overall component composed of two inner and outer ring walls, the inner ring wall and The wall of the outer ring is thin and the height is close to flush) is more and more widely used in various fields. For example, missiles and satellite cabins with double-walled shells, marine action transmission equipment with double-walled mountain-shaped components, tracked vehicles and other equipment are equipped with complex forgings with double-walled shapes, etc. There are many double-thin-walled nearly eq...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the status quo of existing processing technology, the present invention proposes the use of warm extrusion corner channel forming technology to realize the precise plastic forming of thin-walled and nearly contoured and complex mountain-shaped components

The purpose is to effectively overcome the problems caused by the existing traditional processing and manufacturing molds, improve the formability of light alloys, improve the comprehensive mechanical properties of formed components, greatly improve material utilization, save energy and reduce consumption

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