Design and machining method for aluminum alloy hanger forging for high-speed car sliding-plug door

A technology of plug-and-pull doors and processing methods, which is applied to metal processing equipment, mechanical equipment, engine components, etc., can solve problems such as unstable process parameters, poor production environment, and high cost, and achieve abundant reserves, high production efficiency, and The effect of little pollution

Active Publication Date: 2018-03-27
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the main material used in the high-speed plug door hanger is cast steel, and the production process adopted is mainly casting and machining. Although it can ensure good forming performance and high mechanical properties, there are some shortcomings. Such as heavy weight, high cost, unstable process parameters, poor production environment, etc.

Method used

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  • Design and machining method for aluminum alloy hanger forging for high-speed car sliding-plug door
  • Design and machining method for aluminum alloy hanger forging for high-speed car sliding-plug door

Examples

Experimental program
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Embodiment 1

[0037] In this embodiment, the design and processing method of aluminum alloy hanger forgings for high-speed car plug doors, the specific steps are as follows:

[0038] (1) Adopt 6061 deformed aluminum alloy;

[0039] (2) if figure 1 As shown, the optimal design of forging structure:

[0040] 1) Improve the design on the basis of the original casting structure, omit the corresponding structures such as the pouring system, simplify the shape, and be suitable for forging;

[0041] 2) Design a weight-reducing groove on the non-stressed plane, avoiding the matching hole, and the depth is 6mm;

[0042] 3) Design transitional rounded corners around the outline, with a radius of 3mm, which is easy to forge and reduce stress concentration;

[0043] (3) Free forging billet:

[0044] 1) The size of the forging billet is intercepted to Φ150mm×100mm, and surface defects, flashes, debris, etc. are removed. Before forging, the anvil contacting the billet is preheated to 250°C. The surfa...

Embodiment 2

[0059] In this embodiment, the design and processing method of aluminum alloy hanger forgings for high-speed car plug doors, the specific steps are as follows:

[0060] (1) 2A14 deformed aluminum alloy is used;

[0061] (2) if figure 2 As shown, the optimal design of forging structure:

[0062] 1) Improve the design on the basis of the original casting structure, omit the corresponding structures such as the pouring system, simplify the shape, and be suitable for forging;

[0063] 2) Design a weight-reducing groove on the non-stressed plane, avoiding the matching hole, and the depth is 10mm;

[0064] 3) Design transitional rounded corners around the outline, with a radius of 5mm, which is easy to forge and reduce stress concentration;

[0065] (3) Extrusion billet:

[0066] 1) The size of the billet is Φ150mm×200mm, remove oil stains, and preheat to 350°C in a box-type resistance furnace;

[0067] 2) The extrusion temperature is 400°C, and the extrusion speed is 3-4mm / s; ...

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Abstract

The invention belongs to the field of high-speed car sliding-plug door hanger materials and machining and particularly relates to a design and machining method for an aluminum alloy hanger forging fora high-speed car sliding-plug door. A high-speed car sliding-plug door hanger is prepared from a deforming aluminum alloy material, the structure of the aluminum forging hanger is designed in an optimized mode, and finally, the forging-forming machining method is adopted. An aluminum alloy is adopted to replace a traditional cast steel material to conduct optimized structural design, and the aluminum alloy hanger with good comprehensive performance is obtained through the forging machining method. A lightweight high-speed car can be achieved, the cost is saved, and pollution is relieved; according to the performance of the hanger, the final yield strength is larger than or equal to 280 MPa, and the elongation is larger than or equal to 11%; and the assembly and using requirements of the high-speed car sliding-plug door can be met, and considerable economic benefits and significant social benefits can be obtained.

Description

technical field [0001] The invention belongs to the field of high-speed plug door hanger materials and processing, in particular to a design and processing method of an aluminum alloy hanger forging for a high-speed plug door. Background technique [0002] At present, the main material used in the high-speed plug door hanger is cast steel, and the production process adopted is mainly casting and machining. Although it can ensure good forming performance and high mechanical properties, there are some shortcomings. Such as heavy weight, high cost, unstable process parameters, poor production environment and other problems. [0003] With the development of the economy, more and more high-speed vehicles in my country have been put into use, and the materials of vehicle body accessories have also received widespread attention. Especially under the new concepts of "energy saving and emission reduction" and "light weight", lightweight, high-performance Alloy materials as substitute...

Claims

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Application Information

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IPC IPC(8): B21J1/02B21J5/02B21K1/76C22F1/04
CPCB21J1/02B21J5/02B21K1/76C22F1/002C22F1/04
Inventor 张士宏陈岩宋鸿武王松伟程明
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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