AZ80A magnesium alloy engine case isothermal forging forming mould and method

An AZ80A, isothermal die forging technology, applied in metal processing equipment, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., can solve the problems of uneven microstructure and properties, difficult forming, and low performance of magnesium alloys. Achieve the effect of good internal structure performance, reduce cutting workload and high service life

Active Publication Date: 2015-06-24
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problems of difficult forming, uneven microstructure and performance of magnesium alloy and low performance in preparing AZ80A magnesium alloy forgings by conventional forging, and further provides an AZ80A magnesium alloy casing isothermal die forging forming die and forming method

Method used

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  • AZ80A magnesium alloy engine case isothermal forging forming mould and method
  • AZ80A magnesium alloy engine case isothermal forging forming mould and method
  • AZ80A magnesium alloy engine case isothermal forging forming mould and method

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specific Embodiment approach 1

[0021] Specific implementation mode one: combine Figure 1-Figure 5 Describe this embodiment, a kind of AZ80A magnesium alloy casing isothermal die forging forming die of this embodiment includes upper die 1, lower die 2, ejector rod 3 and a plurality of electric heating coils 4, and described upper die 1 is made of An integral body 1-1 and a rib 1-2 are formed, the body 1-1 is a square body, and the middle part of the lower end surface of the body 1-1 is provided with a rib 1-2, and the rib 1-2 is made of the same The shaft is set and made into one first cylinder 1-3 and the first circular platform 1-4, the upper end of the first cylinder 1-3 is connected with the body 1-1, the lower end of the first cylinder 1-3 is connected with the first circular platform 1 The large-diameter end of -4 is connected, and the middle part of the first circular platform 1-4 and the first cylinder 1-3 is processed with a coaxial first tapered groove 1-5, and the cross-sectional diameter of the ...

specific Embodiment approach 2

[0029] Specific implementation mode two: combination figure 2To describe this embodiment, the lower end of the first cylinder 1-3 and the large-diameter end of the first circular platform 1-4 in this embodiment have a circular arc transition. With such a setting, it is convenient to manufacture the magnesium alloy casing, which meets the design requirements and actual needs. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0030] Specific implementation mode three: combination figure 2 To describe this embodiment, the included angle β between any generatrix of the first circular platform 1-4 and the axis in this embodiment is 72°. Such settings meet the design requirements and actual production needs. Others are the same as in the first embodiment.

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Abstract

The invention relates to a magnesium alloy forged piece forming mould and method, in particular relates to an AZ80A magnesium alloy engine case isothermal forging forming mould and method, which aim at solving the problems of difficulty in forming, non-uniform structure property of magnesium alloy and low performance existing in conventional forging preparation of an AZ80A magnesium alloy forged piece. The forming mould comprises an upper mould, a lower mould, an ejection rod and multiple electric heating rings, wherein the upper end of a first cylinder is connected with a body, the lower end of the first cylinder is connected with the large-diameter end of a first circular truncated cone, coaxial first conical grooves are formed in the middles of the first circular truncated cone and the first cylinder, the diameters of the cross sections of the first conical grooves are gradually increased from top to bottom, four corners of the upper end surface of the lower mould are respectively provided with a positioning convex platform, the upper mould covers the lower mould, the four positioning convex platforms are arranged in corresponding positioning grooves, the upper mould and the lower mould are respectively provided with the electric heating rings, a second cylinder of the ejection rod is inserted into an ejection hole, and small circular truncated cones are arranged in the first conical grooves. The forming mould and method are used for preparing an AZ80A magnesium alloy engine case.

Description

technical field [0001] The invention relates to a magnesium alloy forging forming die and a forming method, in particular to a large-scale AZ80A magnesium alloy casing isothermal die forging forming die and a forming method. Background technique [0002] In recent years, manufactured products have continuously developed towards lightweight, low cost and precision. All kinds of difficult and complex components are used more and more widely. As the lightest metal material in actual manufacturing, magnesium alloy has been widely used in aviation industry, electronics industry, military industry and other fields. Magnesium alloy has the advantages of high specific strength, light specific gravity and high specific stiffness. The thermal conductivity of magnesium alloy is much higher than that of titanium alloy, which is equivalent to that of aluminum alloy. The forging temperature range is narrow. When the billet is in contact with the mold, the temperature drops quickly, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J13/02B21J5/02
Inventor 袁林徐福昌单德彬
Owner HARBIN INST OF TECH
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