A semi-solid thixotropic extrusion device for deformed aluminum alloy complex shell parts and its application method

A technology of deformed aluminum alloy and extrusion device, which is applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problems of complex process, low material utilization rate, and high cost of parts manufacturing, and achieve simple operation, high material utilization, and The effect of low manufacturing cost

Active Publication Date: 2019-05-31
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a semi-solid thixotropic extrusion device for deformed aluminum alloy complex shell parts in order to solve the technical problems of the current manufacturing method of deformed aluminum alloy complex shell parts with complicated procedures, low material utilization rate and high part manufacturing cost. and how to use it

Method used

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  • A semi-solid thixotropic extrusion device for deformed aluminum alloy complex shell parts and its application method
  • A semi-solid thixotropic extrusion device for deformed aluminum alloy complex shell parts and its application method
  • A semi-solid thixotropic extrusion device for deformed aluminum alloy complex shell parts and its application method

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specific Embodiment approach 1

[0045] Specific implementation mode one: combine Figure 1-14 , this embodiment is a semi-solid thixotropic extrusion device for deformed aluminum alloy complex shell parts, specifically composed of bolt 1, lower template 2, die 3, ejector rod 4, upper template 5, punch 6, punch The fixed sleeve 8 and the annular heater 7 are composed;

[0046] The lower formwork 2 is a rectangular plate, a rectangular through hole 2-2 is arranged at the center of the larger surface of the rectangular plate, and two longer sides of the rectangular through hole 2-2 Five circular through-holes 2-3 are evenly arranged on the outer side along the direction parallel to the two longer sides; two U-shaped through-holes are respectively arranged on the two longer sides on the surface with a larger area in the rectangular plate. Through hole 2-1;

[0047] The upper template 5 is a rectangular plate, and two U-shaped through holes 5-1 are respectively arranged on the two longer sides of the larger sur...

specific Embodiment approach 2

[0056] Embodiment 2: This embodiment is a method of using the semi-solid thixotropic extrusion device for deformed aluminum alloy complex shell parts in Embodiment 1, specifically according to the following steps:

[0057] Step 1: Quantitatively divide the hot-rolled plate into blanks; the volume of the blank is 1.11 times that of the deformed aluminum alloy shell to be formed; the blank is on two opposite sides of a plane of a cuboid An object obtained by removing a triangular prism; the length and width of the blank are both 2 mm to 3 mm smaller than the length and width of the corresponding position of the deformed aluminum alloy shell part to be formed;

[0058] Step 2: Fix and install the 4 U-shaped through holes 5-1 of the upper formwork 5 with T-bolts and a 5000kN hydraulic press movable beam, and move the 4 U-shaped through holes 2-1 of the lower formwork 2 with a 5000kN hydraulic press. The beam is fixedly installed; the ejector pin 4 is put into the cavity of the die...

specific Embodiment approach 3

[0066] Embodiment 3: This embodiment is different from Embodiment 2 in that: the blank described in step 1 is 2A12 aluminum alloy. Others are the same as in the second embodiment.

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Abstract

The invention discloses a wrought aluminum alloy complex shell semisolid thixotropic extrusion device and a using method of the wrought aluminum alloy complex shell semisolid thixotropic extrusion device, and relates to a wrought aluminum alloy semisolid thixotropic extrusion device and a using method of the wrought aluminum alloy semisolid thixotropic extrusion device. The technical problems thatan existing manufacturing method for wrought aluminum alloy complex shells is complex in working procedure and low in material utilization rate are solved. The device is composed of a die plate, a female die, an ejector rod, a male die, a male die fixing sleeve and an annular heater. When the male die and the female die are matched, the male die stretches into the female die by 30 mm. The using method of the device comprises the steps that quantitative cutting is carried out to obtain blanks; the device is fixedly installed to a hydraulic machine; 3, the male die and the female die are heated; 4, the product is heated to semisolid temperature; 5, the product is conveyed into a cavity of the female die; 6, die assembling is carried out; 7, online water quenching is carried out; 8, die removal is carried out, and air cooling is carried out to room temperature; and 9, natural aging is carried out after heat treatment and water quenching. The device is simple in structure, and the material utilization rate and the near net forming degree are greatly improved.

Description

technical field [0001] The invention relates to a semi-solid thixotropic extrusion device for deformed aluminum alloy and its application method. Background technique [0002] There are many deformed aluminum alloy shell parts with complex shapes in industrial production. These parts not only have very complex shapes, but also require high mechanical properties, so the requirements for manufacturing methods are very strict. Although complex shapes can be formed by using traditional casting molding, due to the large number of alloy elements in the deformed aluminum alloy, it tends to be more heated, so hot cracks often occur during the casting process, which affects the forming process. Moreover, the microstructure of cast molded parts is generally composed of coarse dendrites and there are casting defects such as shrinkage cavities and shrinkage porosity, so the mechanical properties of the molded parts are also low, which cannot meet the mechanical performance requirements...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B21D22/02B21D37/16B21D37/18
CPCB21D22/02B21D22/022B21D37/10B21D37/16B21D37/18
Inventor 姜巨福郭晓琳王迎王志敏肖冠菲东栋刘英泽
Owner HARBIN INST OF TECH
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