Aluminum alloy large round tube die

Abstract

The invention relates to the technical field of die processing, and in particular, relates to an aluminum alloy large round tube die including an upper die and a lower die which are connected with each other; the middle of the upper die is provided with a tongue core, and the tongue core is arranged from a feed end of the upper die to a discharge end of the upper die; the tongue core is a frustumstructure having a spherical bulge at one end, and the spherical bulge is located at one side, close to the feed end of the upper die, of the tongue core; the other side, close to the discharge end ofthe upper die, of the tongue core includes a cylinder extending out of the upper die; the center of the end face of the cylinder is provided with a U-shaped through-hardening hole; the cylinder is provided with a first work zone and a second work zone successively along the direction from the feed end of the upper die to the discharge end of the upper die, and the cross section of the tongue corealong the direction from the feed end of the upper die to the discharge end of the upper die is step-like. The aluminum alloy large round tube die has the beneficial effects that the aluminum alloy large round tube die can effectively reduce the extrusion force, improves the strength of the die, improves the production efficiency, reduces the consumption of the die, and solves the problems of hard alloy ellipses and weld joints.

Description

technical field [0001] The invention relates to the technical field of mold processing, in particular to an aluminum alloy large round tube mold. Background technique [0002] In recent years, the share of industrial aluminum in the aluminum profile market has increased rapidly, and more and more fields are involved. Especially for the large round tube profiles of the motor shell, in order to meet the needs of product performance, 6061 and 6082 alloys are often used, and the requirements for welding seams are high, which brings great difficulty to mold development. [0003] At present, the molds for the production of aluminum alloy large round tubes have always had problems with ellipse and weld seams. These problems are difficult to solve. The main reason for the analysis is that during the development of the mold for large round tubes, due to the large pressure-bearing surface, there are many cores in the upper mold. The climbing design is adopted, and when the hard alumi...

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Problems solved by technology

Especially for the large round tube profiles of the motor shell, in order to meet the needs of product performance, 6061 and 6082 alloys are mostly used, and the welding seam requirements are high, which brings great difficulty to the mold development

[0003] At present, the molds for the production of aluminum alloy large round tubes have always had problems with ellipse and weld seams. These problems are difficult to solve. The main reason for the analysis is that during the development of the mold for large round tubes, due to the large pressure-bearing surface, there are many cores in the upper mold. The climbing design is adopted, and when the hard aluminum alloy is extruded, the metal fluidity is poor, resulting in too much extrusion force, which affects the strength of the mold, the consumption of the mold is large, and the production efficiency is low.

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