Extrusion forming die for magnesium alloy ring parts
A technology of extrusion forming and magnesium alloy, which is applied in the direction of metal extrusion dies, etc., can solve the problems of easy expansion and cracking of magnesium alloy ring parts in the processing process, and achieve the advantages of shortening the extrusion forming process, facilitating hole expansion and deformation, and shortening the manufacturing process Effect
Active Publication Date: 2020-02-04
SHANXI ZHONGLI FLANGE
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Problems solved by technology
[0005] The purpose of the present invention is to address the deficiencies in the above-mentioned technologies, and propose a magnesium alloy ring extrusion die, aiming to solve the problem of easy expansion and cracking of the existing magnesium alloy ring during processing
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[0041] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0042] like Figure 1 to Figure 20 As shown, the present invention provides a magnesium alloy ring extrusion molding die, which is mainly used for the processing and molding of magnesium alloy rings, specifically for the processing of magnesium alloy thin-walled rings; the forming die includes an upper die assembly, a concave die set Parts and lower die assembly; wherein, the die assembly is fixedly arranged on the lower die assembly; the die assembly includes an inner die 22 and an outer die 17, and the inner die 22 and the outer die 17 are coaxially arranged, And a mold cavity is formed between the inner die 22 and the outer die 17, and the die cavity is a revolving body cavity; the outer wa...
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The invention provides an extrusion forming die for magnesium alloy ring parts. The extrusion forming die for the magnesium alloy ring parts comprises an upper die assembly, a concave die assembly anda lower die assembly, wherein the concave die assembly is fixedly arranged on the lower die assembly; the concave die assembly comprises an inner concave die and an outer concave die, a cavity is formed between the inner concave die and the outer concave die, and the outer wall surface of the inner concave die can be used for placing a blank; and upper die assembly is connected with a press machine, and the blank is pressed through the press machine to be subjected to extrusion forming along the curved generatrix of the outer wall surface of the inner concave die. According to the scheme, near-isothermal forming can be realized, and material cracking is avoided, so that the forming yield of the large-specification magnesium alloy ring parts is greatly increased, the manufacturing flow forthe large-specification magnesium alloy ring parts is shortened, and the production cost is reduced; and moreover, the die is simple, convenient to operate, and capable of greatly shortening the extrusion forming flow, effectively improving the formability of a magnesium alloy, and facilitating to high-degree reaming deformation.
Description
technical field [0001] The invention belongs to the technical field of extrusion forming of magnesium alloy rings, in particular to a die for extrusion forming of magnesium alloy rings. Background technique [0002] Magnesium alloy is a light alloy material with low density (2 / 3 of aluminum and 1 / 2 of titanium). It is the lightest metal structure material with good specific strength, specific stiffness, thermal conductivity, electromagnetic shielding Magnesium alloys are widely used in aerospace, transportation, electronic communication, national defense and military industry due to their advantages of high resistance, damping and shock absorption. However, magnesium alloys have a close-packed hexagonal crystal structure, which also has the problems of poor plasticity and instability. [0003] The existing extrusion forming process of large-size magnesium alloy rings is generally upsetting-punching-horse reaming-machining-rolling. Cracking occurs; for the reaming of ring pa...
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IPC IPC(8): B21C25/02
CPCB21C25/02
Inventor 赵熹张治民李国俊刘杰阚帅领
Owner SHANXI ZHONGLI FLANGE