Unlock instant, AI-driven research and patent intelligence for your innovation.

Systems and methods utilizing fiber lasers for titanium welding using argon blanket gas

A fiber laser, gas technology, used in welding equipment, laser welding equipment, welding/welding/cutting items, etc., can solve problems such as inappropriateness

Active Publication Date: 2015-08-05
IPG PHOTONICS CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This unacceptable level of fume in fiber laser welding is unacceptable to the medical device industry and was not previously understood

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Systems and methods utilizing fiber lasers for titanium welding using argon blanket gas
  • Systems and methods utilizing fiber lasers for titanium welding using argon blanket gas
  • Systems and methods utilizing fiber lasers for titanium welding using argon blanket gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Reference will now be made in detail to several embodiments of the invention which are illustrated in the accompanying drawings. Wherever possible, the same or similar reference signs are used in the drawings and description to refer to the same or similar components or steps. The drawings are in simplified form.

[0031]As mentioned earlier, during a simple replacement, there is a surprisingly high Smoke and dust are produced. This was unacceptable, and during the development of the present invention, the inventors determined that fiber laser-matter interactions are fundamentally different from Nd:YAG laser-matter interactions because when compared to the smaller The resulting plasma using a fiber laser indicates a much larger and brighter white / yellow spectral signal when compared to the less intense white / yellow spectral signal.

[0032] go to figure 2 , the determination of this interaction is supported by plotting the spectra (absorption / emission lines) of arg...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention is a method and system for reducing contamination in the resulting plasma of a weld produced by a fiber laser. The invention establishes the fiber laser in an optimal configuration for applying a high density beam to a weld material that eliminates spectral interference. The beam is applied in a narrow bandwidth of 1064 nm + / - 0.5 nm in one operative condition using an inert shielding gas, preferably argon, in a cross-flow or controlled environment around the welding region to prevent contamination of the plasma forming in the weld region. The method is optimized by determining and avoiding the emission spectrum for the fiber laser and the cover gas or gasses as well as any particular excitation spectra for the weld material. The system can utilize a single laser input, or can utilize multiple lasers joined by coupling means and utilizing a switch to select one or more of the fiber lasers.

Description

technical field [0001] The present invention relates to methods and systems for welding titanium or titanium alloys using a fiber laser and using an inert blanket gas. In particular, the invention relates to reducing contamination in welding by narrowing the bandwidth of fiber lasers acting on titanium or titanium alloy workpieces, thereby reducing or eliminating optical interactions between the laser beam and the blanket gas. Background technique [0002] Recent technological developments in fiber laser technology have expanded the capabilities of laser welding. Furthermore, these developments have changed the cost dynamics of laser welding in many ways. New compact and air-cooled pulsed-mode fiber lasers with pulse durations up to 20ms and peak power levels up to 6kW are now available. Unfortunately, the use of these standard broadband fiber lasers for specific applications involving titanium or titanium alloys and inert blanket gases leads to unintended consequences and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/244B23K26/06B23K26/0622B23K26/12B23K26/22B23K26/40B23K103/14
CPCB23K26/22B23K26/123B23K26/063B23K26/322B23K2203/14B23K26/06B23K26/246B23K26/32B23K26/0622B23K26/244B23K2103/14B23K26/14
Inventor 瓦伦丁·P·加蓬塞夫查理·布里奇迈克尔·莱昂奥莱格·什库瑞昆罗伯特·安尔加沙达雷尔·科尔曼塞巴斯蒂安·法夫瑞布里
Owner IPG PHOTONICS CORP