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

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...

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

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