Vibration stress relief formation method and device under elastic deformation condition

A vibration aging and elastic deformation technology is applied in the field of vibration aging forming methods and devices, which can solve the problems of difficult springback and high mold manufacturing cost, and achieve the effects of reducing production costs, good surface quality and less equipment investment.

Inactive Publication Date: 2013-12-25
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the prior art that the mold manufacturing cost is high and the springback is difficult to control

Method used

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  • Vibration stress relief formation method and device under elastic deformation condition
  • Vibration stress relief formation method and device under elastic deformation condition
  • Vibration stress relief formation method and device under elastic deformation condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment is a method of vibration aging forming under elastic deformation conditions, and the specific steps are:

[0029] In the first step, the sheet metal of the workpiece to be formed is installed. Install the sheet material and the rubber pad of the workpiece to be formed between the upper mold and the lower mold, and make the upper surface of the first rubber pad fit the lower surface of the upper mold, and the lower surface of the second rubber pad and the lower mold. The upper surface is attached, and at the same time, the upper surface of the sheet material of the workpiece to be formed is attached to the lower surface of the first rubber pad, and the lower surface of the sheet material of the workpiece to be formed is attached to the upper surface of the second rubber pad. Secure the exciter to the sheet with conventional "C" clips. Connect the exciter and sensor and the power supply through the cable and power cord. Among them, the exciter chooses ZS...

Embodiment 2

[0034] This embodiment is a single-curvature workpiece forming device used to implement the vibration aging forming method under elastic deformation conditions described in Embodiment 1. The length of the formed workpiece is 1000mm, the width is 400mm, and the bending radius is 1500mm. The formed workpiece is an aluminum alloy plate.

[0035] The forming device of the single-curvature aluminum alloy workpiece comprises the first rubber pad 1 of the forming device, an upper mold 2, a lower mold 4, an exciter 5, a clamp 6, an exciter base 7, a sensor 8, a controller 9 and The second rubber pad 10.

[0036] The vibrator 5 is located at one end of the workpiece, and is installed on the upper surface of the workpiece 3 through the vibrator base 7 . The upper surface of the exciter base 7 cooperates with the bottom plate of the exciter, and the vibrator 5, the exciter base 7 and the lower mold 4 are fastened by the clamp 6. The lower surface of the vibrator base 7 is an arc surfa...

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Abstract

The invention relates to a vibration stress relief formation method and a vibration stress relief formation device under an elastic deformation condition. Metal flat plates are enabled to be bent under the effect of a mold, the deformation is within an elastic range, the metal plates can be restored to the original shape after the mold is removed, bending prestress is loaded to the plates under the effect of the mold, a vibration stress relief device is connected, periodic exciting force is produced through a vibration exciter, the plates are enabled to reach a resonance state under the effect of the periodic exciting force, the internal bending prestress of the plates is relieved and homogenized through resonance, the metal plates are enabled to produce certain plastic deformation through the release process of the bending prestress and bent parts with bending radius which is equivalent to the curvature radius of the mold are obtained. The vibration stress relief formation method and the vibration stress relief formation device under the elastic deformation condition have the advantages that the defects that the mold manufacturing cost is high during formation of sheet metal parts and the resilience is difficult to control are overcome, the surface friction damages of the parts and the vibration energy losses during vibration stress relief are decreased, the surface quality of formed parts is improved, the production cycle is shortened and the production cost is decreased.

Description

technical field [0001] The invention relates to the technical field of aging forming processing, in particular to a vibration aging forming method and device under elastic deformation conditions. Background technique [0002] In recent years, more and more vibration aging methods and corresponding equipment have been used in China. At the same time, it can deal with the stress of workpieces in an environmentally friendly, energy-saving and efficient manner. It strongly highlights its advantages and future development prospects, allowing more industrial manufacturers and enterprises Targeted use of vibration aging equipment to improve work efficiency and benefits. With the wide application of vibration aging, the technology has also made great progress. Vibration aging refers to the method that the exciter clamped on the workpiece generates a periodic exciting force, under its action, the component reaches a resonance state, the internal stress of the workpiece is relaxed, a...

Claims

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Application Information

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IPC IPC(8): B21D5/00C21D10/00C22F3/00
Inventor 王永军孙宝龙郝耀武
Owner NORTHWESTERN POLYTECHNICAL UNIV
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