Constant-speed continuous silicone oil restraining device and method

A technology of restraint device and silicone oil, which is applied in the field of laser processing and laser warm shot peening surface strengthening, can solve the problems that the flexible restraint layer cannot be applied, and the liquid spray system cannot be applied to the delivery of high-viscosity silicone oil, etc., so as to achieve low manufacturing and maintenance costs, Improve reliability and stability, and ensure the effect of restraint

Active Publication Date: 2015-03-25
JIANGSU UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to design a method that can make high-viscosity The silicone oil is continuously output at a constant speed and acts on the surface of the workpiece as a uniform and continuous silicon oil restraint device with flexible speed control, and at the same time provides a suitable method

Method used

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  • Constant-speed continuous silicone oil restraining device and method
  • Constant-speed continuous silicone oil restraining device and method
  • Constant-speed continuous silicone oil restraining device and method

Examples

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Effect test

experiment example

[0043] Take aluminum alloy A356 as an example. The experiment is divided into two groups, each group contains a 10mm×10mm×2mm square sample.

[0044] In the first group of experiments, the square sample was placed horizontally on the workbench, and the sample was subjected to single-point laser warm shot peening using a static silicone oil with a thickness of 3 mm as a constrained layer, and the sample was impacted twice continuously with an interval of 0.2 s. The laser 33 is a Nd:YAG solid-state laser, and the parameters are as follows: the energy is 2J, the spot diameter is 2mm, the temperature is 150°C, and the pulse width time is 8ns.

[0045] In the second group of experiments, the square sample was placed vertically on the workbench 28, and the sample was subjected to single-point laser warm shot peening using uniform flow of silicone oil as the constrained layer. The sample was impacted twice continuously with an interval of 0.2 s. The thickness of the flowing silicone ...

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Abstract

The invention discloses a constant-speed continuous silicone oil restraining device and method. The constant-speed continuous silicone oil restraining device is characterized by comprising a motor (11), wherein the output end of the motor (11) is connected with a gear (13); the gear (13) is meshed with a rack (2), one end of the rack (2) is hinged with a swinging rocking rod (1), and the swinging rocking rod (1) is hinged on a support (34); the two ends of the swinging rocking rod (1) are respectively hinged with a piston rod, and the piston rods are connected with pistons which are arranged in piston cylinders; the bottoms of the piston cylinders are provided with one-way oil outlet valves and one-way oil inlet valves, which are respectively connected with an adjustable silicone oil spraying nozzle (23) and an oil cylinder (31), the piston cylinders are internally provided with travel switches, and the travel switches control a change-over switch (9) to reverse by electromagnetic valves so as to reverse the motor (11). The device provided by the invention has the advantages that the operation is easy, the cost is low, the adjustment is convenient, and the different complicated production requirements are met.

Description

technical field [0001] The invention relates to the field of laser processing technology, in particular to the field of laser warm shot peening surface strengthening, in particular to a constant-velocity continuous silicon oil confinement device used in the process of laser shot peening and its method. Background technique [0002] Laser warm shot peening is a new type of surface strengthening treatment technology, which can achieve a better surface strengthening effect than mechanical shot peening. The laser-induced impact pressure generally needs to be confined by the constrained layer to achieve a better shot peening effect. The most commonly used confinement layer for room temperature laser peening is running water, but running water will generate bubbles or even vaporize and evaporate at higher temperatures, so the flow water confinement layer commonly used for laser peening cannot be used for laser warm peening. How to efficiently confine laser-induced shock stres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D7/06C21D1/68C21D1/09
Inventor 孟宪凯周建忠陈寒松朱炜立韩煜航周宏达黄舒梅於芬
Owner JIANGSU UNIV
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