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High strength aluminum alloy quincunx deep blind hole piece extrusion molding technique

A high-strength, aluminum alloy technology, applied in the extrusion process of high-strength aluminum alloy plum blossom-shaped deep blind hole parts, to achieve high precision, reduce production costs, and reduce processing costs

Inactive Publication Date: 2009-04-01
CHANGAN AUTOMOBILE (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-strength aluminum alloy quincunx-shaped deep blind-hole extrusion forming process, which solves the problem of high-strength aluminum alloy quincunx-shaped deep blind-hole extrusion

Method used

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  • High strength aluminum alloy quincunx deep blind hole piece extrusion molding technique
  • High strength aluminum alloy quincunx deep blind hole piece extrusion molding technique
  • High strength aluminum alloy quincunx deep blind hole piece extrusion molding technique

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Embodiment Construction

[0025] Such as Figure 1 ~ Figure 4 Shown, the concrete process sequence step of the present invention is as follows:

[0026] (1) On the CK6136 lathe, cut the bar stock with a diameter of φ32 into a section with a length of 61.5mm;

[0027] (2) Put the saving material into the model CS101 box-type electric furnace to heat, and keep it warm for 3 hours after the temperature reaches 380°C±10°C, and cool to room temperature with the furnace;

[0028] (3) After cleaning the saving material with hot water, put it into a sodium hydroxide solution (the solution concentration is NaOH40-60g / L, the solution temperature is 60°C~70°C) for oxidation treatment for 10min~15min, take it out and dry it After drying, evenly coat the material with zinc stearate powder;

[0029] (4) Composite extrusion: Put the material into the extrusion die for composite extrusion, extrude the upper and lower round holes and regularize the shape;

[0030] (5) After cleaning the workpiece with hot water, dry...

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Abstract

The invention discloses a cold press forming technology for a high-strength aluminum alloy cinquefoil deep blind hole piece, which relates to the press forming technology of the high-strength aluminum alloy piece, in particular to the press forming technology for the high-strength aluminum alloy cinquefoil deep blind hole piece made of the material with brand 7A04; the steps of the technology comprise blanking of a bar machine, annealing treatment before pressing and superficial oxidation and lubrication treatment, compound pressing of upper and lower round holes, pressing of cinquefoil hole, solid solution treatment, aging treatment and machining shape. The invention has the advantages that the productivity is high and the cost is low; moreover, the product quality is high, especially the size precision and the location precision of the cinquefoil hole can be ensured by the mold to meet the technology requirements; therefore, deep blind hole piece can be suitable for the mass production.

Description

technical field [0001] The invention relates to a high-strength aluminum alloy extrusion molding process, in particular to an extrusion process for a high-strength aluminum alloy quincunx-shaped deep-blind-hole part whose grade is 7A04. Background technique [0002] High-strength aluminum alloy materials have the characteristics of light weight and high strength, and are more and more widely used in new products. However, due to the poor plasticity of the material, it is not conducive to extrusion molding, so machining is usually used. However, for complex shapes Parts, the problem of low production efficiency of machining methods is highlighted, especially for the processing of super duralumin materials with material grade 7A04 and plum blossom-shaped deep blind hole parts, the production efficiency is extremely low. This product is currently being processed It is processed on a CNC lathe (Hatian, USA), with a production capacity of 18 pieces per shift, which is not suitabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/02B21C29/00C22F1/04
Inventor 谷成渝朱春明
Owner CHANGAN AUTOMOBILE (GRP) CO LTD
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