Innovative Welding Technologies: Harnessing the Power of Laser and Arc Composite Heat Sources
The welding industry is constantly evolving, driven by the need for more efficient, cost-effective, and high-quality welding processes. In recent years, the concept of laser and arc composite heat sources has emerged as a promising solution for achieving superior welding results. In this blog post, we will delve into the world of laser and arc composite heat sources, exploring their benefits, applications, and benefits for the welding industry.
When Short-Circuit Transition Current is Large
When the short-circuit transition current is large (100 to 160A), the laser power of composite welding is 100 to 700 W, placing it in the thermal welding area. This is particularly evident in the welding of thin stainless steel plates (1.5 mm thickness). Figure 10 showcases the welding formation during the overlap welding of thin stainless steel plates, demonstrating the effectiveness of composite welding in this context.
When Short-Circuit Transition Current is Important
When the short-circuit transition current is high (100 to 160A), the laser power of composite welding is 900 to 2000 W, placing it in the deep cast iron welding area. This is exemplified in the comparison of welding formation when using carbon steel material (10 mm thickness) with Mag welding and Mag Laser + short-circuit transition. Figure 11 illustrates the welding formation under these conditions, highlighting the advantages of composite welding in this context.
High-Power Solid Laser (ND: YAG) + Pulse Mig Arc Composite Source Welding Technology for Aluminum Alloy Material
The innovative combination of high-power solid laser (ND: YAG) + pulse MIG arc composite source welding technology has been successfully applied to aluminum alloy material 5A06 (LF6). In this context, studying the influence of welding welding changes on the depth of welding fusion has revealed that under the same welding heat input, the welding fusion depth obtained by composite welding is greater than that of pulse MIG welding with the same current. Figure 12 displays a comparison of welding speed and welding heat input during composite welding and MIG individual pulse welding under the same depth of welding conditions.
Collaborative Effect: Laser + MIG Arc
The experience has also demonstrated a comparative analysis of welding formation between MIG welding with individual pulse and the laser + MIG welding. By combining a certain amount of energy laser with the arc, the residual height and the welding width ratio are reduced, and the melted metal can be well wet with the basic material. Moreover, the presence of the laser heat source can effectively reduce the surface tension of the melted metal, achieving a continuous welding formation. Figure 13 showcases the appearance of welding sole formation during high-speed welding of aluminum alloy 5A06.
Aluminum/Steel Large Spot ND: YAG Laser + Pulse Mig Source of Composite Melting-Brazing Technology
This technology is based on the welding process of the laser heat + ARC source, which exhibits the characteristic of arc stabilization, improving the stability of the welding process and the improvement of writing is a welding method. High-quality aluminum alloys (5A02) were successfully joint by this technology. Figure 14 displays the welds of 5A02 aluminum alloy plates and cold-rolled galvanized steel plates.
Application of Welding Technology for Laser Composite Heat Sources + Arc
The Harbin Welding Research Institute has successfully applied the welding technology of the laser + arc composite heat source to cylinder body (resistance 1000 to 1780MPa, thickness 12 to 25 mm). The technology effectively solves the welding problems of cracks, burn, and damage to the chrome plating of the inner layer of the cylinder and the deformation of the components. Figure 15 showcases the welding of the shock absorber cylinder using the technology.
In conclusion, the combination of laser and arc composite heat sources has revolutionized the welding industry, offering improved welding results, increased efficiency, and enhanced quality. The welding industry is constantly evolving, and innovation is crucial for its continued growth and success. As the demand for high-quality welding technology continues to rise, the importance of laser and arc composite heat sources will only continue to grow.
Future Directions
The development of laser and arc composite heat sources is an ongoing process, with researchers and industry experts continually pushing the boundaries of innovation. As new technologies emerge, the welding industry will continue to benefit from the improved performance, cost-effectiveness, and quality provided by the combination of laser and arc sources. The future of welding is bright, and the possibilities are endless. With the advancements in laser and arc composite heat sources, the future of the welding industry has never been brighter.
Final Thoughts
Laser and arc composite heat sources have transformed the welding industry, offering a new era of efficiency, quality, and innovation. As the demand for high-quality welding technology continues to rise, the importance of laser and arc composite heat sources will only continue to grow. As we look to the future, it is clear that the combination of laser and arc sources will be a key component of the welding industry’s path forward.
