From welding highly reflective metals such as aluminum and copper, to welding dissimilar metals, linear joint pattern to circular joint pattern, autogenous welding to additive welding, this welding head is up for the challenge. It helps compensate for gap variation and other joint-geometry challenges and inconsistencies. While the concept is still the same – using heat to join two materials together – the way in which heat is delivered by lasers is quite unique. Although laser welding has been around for several decades, the use of this technology has only been picked up recently because of the transition to automated manufacturing processes. @The UV laser marking machine is mainly based on its unique low-power laser beam.
The laser beam is focused to obtain a very small spot and can be precisely positioned, which can be applied in the group welding of micro and small workpieces for high-volume automated production. 1) Because the focused laser has a much higher power density than conventional methods, resulting in fast welding speed, heat-affected zone and deformation are very small, but also can weld difficult to weld materials such as titanium. Our laser welding systems are the perfect tool for joining metal, plastic, and other materials with perfect seams and no distortion. While most sheet metal fabricators will benefit from the numerous advantages of laser welding, many are still hesitant to make the investment. To overcome this concern, consider the needs of your sheet metal shop and how laser welding might impact production. Consult with industry experts who can help evaluate your parts, answer questions and show you how laser welding opens up new opportunities.
Taking into account the combi-head’s technical features and capabilities, Fraunhofer ILT believes a fabricating operation can reduce its operating costs by a factor of two or more when applying this dual-use technology. The content of Mg and Si in the dendrite in the fusion zone increases due to the introduction of the filler material, and the β” solid solution strengthening effect will increase the strength of the joint. When the laser tilt angle is 40°, the largest solder joint and effective bonding surface are obtained.
Before that, these systems were only used in research institutes and specialist companies. Jewelry manufacturers currently using laser welders are often amazed at the wide range of applications and ability to produce a higher quality product in less time with fewer materials. Lasers can also be used to re-tip prong settings, repair bezel settings, resize rings, and repair bracelets without removing stones. Sponge-type porosity, normally identified in the final polishing process, can be filled and repaired by using a laser.
While the concept of multifunctional laser processing is straightforward and the market seems to be ready for such a device, some technical problems had to be solved before it became reality. In addition, the welding speed can be appropriately increased during welding to avoid small pits. If the welding speed is too fast, the penetration depth of the weldment becomes relatively small.
In the Laser Welding process, 100% of the laser light will be reflected off the rear mirror, and 30 to 50% will pass through the front mirror. Laser Welding is a process that joins ferrous metals, stainless steel, precious metals, and alloys to themselves or each other. Standard delivery fibers are provided between 6-20m which allows for the Lasers to be used in highly dynamic applications and are particularly suited for robot based applications. Because of its advantages like long life, no maintenance, very stable and low cost, it is becoming more and more popular day by day and consumption of fiber source has increased manifold.
When first being reported in 1985, transmission laser welding was carried out with an IR transmissive plastic material for the upper section and a carbon-black loaded plastic for the lower layer. The carbon black absorbs and heats in the laser beam to generate a weld at the interface between the two pieces. The process is limited by the fact that one side of the component has to be black, but is still the most common application of the process. The upper part must transmit a proportion of the laser energy (more than 10% is usually enough) so that heating preferentially takes place at the surface of the lower part rather than at the upper surface of the top part .
Laser welding has less consumables, low energy consumption and long service life. The welding seam smooth and beautiful, large depth, small taper, don’t need polish, save time. You send a mold out to a welding shop, for example, to rebuild a worn corner, fill a crack or hole, or repair a worn gate that is now generating flash. First, those areas of the mold will be built up or filled in by welding a bead of filler material onto the component surface. The features are then re-machined to blend the surfaces and restore the mold to its original dimensions.