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Method of laser-beam welding machine for realizing local annealing

A technology of laser welding machine and partial annealing, which is applied in the direction of furnace types, furnaces, heat treatment furnaces, etc., can solve the problems of passing the flaring performance test, etc., and achieve the effects of stable product performance test, high yield rate, and stable product quality

Inactive Publication Date: 2018-10-02
AVIC STANDARD PARTS MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Especially in order to solve the problem of passing the product's flaring performance test

Method used

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  • Method of laser-beam welding machine for realizing local annealing
  • Method of laser-beam welding machine for realizing local annealing
  • Method of laser-beam welding machine for realizing local annealing

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Experimental program
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Embodiment Construction

[0024] Take product XX.4.1401 as an example image 3 , the product requires the outer diameter of the local annealing section to be φ11-0.1mm, the aperture to be φ9.9+0.12mm, and the width of the rivet seat end to be 5.9±0.07mm. The calculation shows that the maximum wall thickness of the local annealing section is 0.55mm, and the minimum is 0.44mm, the rivet seat end is required to be 60° according to the standard, and the outer circle after flaring is 1.15 times of the original largest entity for riveting. The product must not have cracks. The implementation is as follows through the HJ-2 laser welding machine.

[0025] 1. Turn on the power and turn on the HJ-2 laser welding machine.

[0026] 2. Open the air valve to vacuumize the air cavity.

[0027] 3. When the air chamber reaches a vacuum state, close the air valve and perform vacuuming operation.

[0028] 4. Fill the air cavity with nitrogen, carbon dioxide and helium in proportion.

[0029] 5. Turn on the laser gener...

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Abstract

The invention belongs to the field of aviation standard element processing, and particularly relates to a method of a laser-beam welding machine for realizing local annealing. By using a CO2 laser technology, local annealing process of a nickel-based alloy GH738 material product is realized, so as to ensure the strength requirements of the rest structure of the product. At present, the main localannealing process in China mostly adopts induction coil heating, but the processing quality cannot meet some special requirements of the product, and the method provided by the invention has the advantages that the production efficiency is improved while the processing quality of the product is ensured. The article briefly introduces some characteristics of laser and a laser device. At present, the CO2 laser device is one of the most widely used laser devices, and has some outstanding advantages such as high power and high quality. The application of CO2 laser devices in being matched with a tool to realize a local annealing related function is provided, and the application of an application type CO2 laser device in the field of standard element manufacturing is emphatically introduced. Inthe future, the technology can be applied to different positions of different materials to realize local annealing processing.

Description

technical field [0001] The present invention is to install a rotary motor on the HJ-2 laser welding machine, which is the existing equipment in our factory, specifically to realize a local annealing method for the laser welding machine through the clamping device of the rotary motor, and realize local laser induction heating of the product , to realize the annealing function locally on the product. Background technique [0002] At present, our company has a number of products that are GH738 material pallet self-locking nuts. This type of nut is a rivet seat end on a section of the pallet. After heat treatment, GH738 material has high hardness, poor material plasticity and toughness. In order to prevent cracks from appearing in the product when turning riveting, local annealing process is carried out on the rivet seat end of the product to reduce the local hardness and improve the local plasticity and toughness of the product. [0003] At present, most heat treatment devices...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/42C21D1/26C21D9/00
CPCC21D1/26C21D1/42C21D9/0068Y02P10/25
Inventor 隋天龙
Owner AVIC STANDARD PARTS MFG
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