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Solid solution-bending-aging forming device and method for vehicle body aluminum alloy pipe

A technology for aluminum alloys and pipe fittings, which is applied in the field of solid solution-bending-aging forming devices for aluminum alloy pipe fittings for car bodies, can solve problems affecting the forming quality of pipes, improper arrangement of water spray holes, inconsistent spray angles, etc., shorten the forming process, improve The effect of improving the forming quality and forming efficiency

Active Publication Date: 2016-05-18
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when water spray cooling is used, it is often caused by insufficient cooling due to insufficient water spray pressure, insufficient water spray time, improper arrangement of water spray holes, inconsistent spray angles, and blockage of spray holes; at the same time, due to If the cooling speed is too fast, a large internal stress is easily generated inside the pipe, resulting in quenching deformation or cracks, which affects the forming quality of the pipe

Method used

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  • Solid solution-bending-aging forming device and method for vehicle body aluminum alloy pipe
  • Solid solution-bending-aging forming device and method for vehicle body aluminum alloy pipe
  • Solid solution-bending-aging forming device and method for vehicle body aluminum alloy pipe

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Embodiment 1

[0058] In embodiment 1, the supporting mandrel is a rigid mandrel.

[0059] Such as Figure 1-Figure 3 As shown, a method for solid solution-bending-aging forming of an aluminum alloy pipe fitting for a vehicle body comprises the following steps:

[0060] S1. The material of the aluminum alloy pipe fittings is 2A12, the diameter of the pipe fittings is 80mm, the thickness is 1mm (that is, the ratio of diameter to thickness is 80), the length is 500mm, the bending radius of the bending part is 120mm, and the outer diameter of the mandrel and core ball is 78mm. The core ball is arranged in series on the mandrel through a hinge, the mandrel is put into the pipe, and the induction coil is placed on the outer circumference of the pipe to be bent;

[0061] S2. Adjust the high-frequency power of the high-frequency power supply according to the specifications of the pipe fittings, wall thickness, etc., use the high-frequency power supply to heat the bending part of the pipe fittings ...

Embodiment 2

[0065] In embodiment 2, the supporting mandrel is a rigid steel ball.

[0066] Such as Figure 6-Figure 8 As shown, a method for solid solution-bending-aging forming of an aluminum alloy pipe fitting for a vehicle body comprises the following steps:

[0067] S1. The material of the aluminum alloy pipe fittings is 2A12, the diameter of the pipe fittings is 80mm, the thickness is 1mm (that is, the ratio of diameter to thickness is 80), the length is 500mm, and the bending radius of the bending part is 120mm. Different quantities and sizes of small steel balls are filled into the Inside the pipe fitting (steel ball diameter ≤ 4mm), the two ends of the pipe fitting are sealed by the steel wire rope 10, and the induction coil is placed on the outer circumference of the pipe fitting to be bent;

[0068] S2. Adjust the high-frequency power according to the requirements of the pipe fitting specification, wall thickness, etc., use the high-frequency power supply to conduct circumferen...

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Abstract

The invention discloses a solid solution-bending-aging forming device and method for a vehicle body aluminum alloy pipe. The device comprises a heating mechanism and a bending mechanism. The heating mechanism comprises an induction coil and a high-frequency power source. The induction coil is arranged on the periphery of a bent part of the pipe in a sleeving mode and connected with the high-frequency power source. The bending mechanism comprises a bending die, a fixed clamp block, a crease-resistant block, movable clamp blocks and a rigid / flexible core die. The bent part of the pipe is placed on the bending die. One end of the pipe is clamped on the bending die through the fixed clamp block and the crease-resistant block, and the other end of the pipe is clamped by the movable clamp blocks. The rigid / flexible core die is arranged in the pipe. The fixed clamp block, the crease-resistant block and the movable clamp block are designed in a split mode, and the bending die is designed in an insert mode, so that water channels are processed conveniently and replacement after abrasion is convenient. The bending die, the fixed clamp block, the crease-resistant block and the movable clamp blocks are all internally provided with serpentine channels used for introducing cooling water. The solid solution-bending-aging forming device and method for the vehicle body aluminum alloy pipe can significantly improve the strength, the hardness and the forming precision of aluminum alloy pipes, and the springback problem of the pipes after bending and quenching is effectively solved.

Description

technical field [0001] The invention relates to a metal heat treatment processing and forming method, in particular to a solid solution-bending-aging forming device and method for an aluminum alloy pipe fitting of a vehicle body. Background technique [0002] Modern automobiles are developing toward lightweight, intelligent, and high-performance, and they also put forward new requirements for materials. Aluminum alloying of automobiles is an important way for automobiles to be lightweight. Lightweight automobiles can effectively save energy and reduce environmental pollution. Aluminum alloy and its processing materials have a series of excellent characteristics, such as low density, high specific strength and specific stiffness, good elasticity, good impact resistance, corrosion resistance, wear resistance, high thermal conductivity, good processing formability and high recycling rate sex etc. [0003] The bending processing of pipes occupies a very important position in me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D9/05B21D9/03B21D9/18
CPCB21D9/03B21D9/05B21D9/18
Inventor 胡志力张益雷戴明亮庞秋华林
Owner WUHAN UNIV OF TECH
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