The factors that determine the cross section of the weld joint are the laser’s beam quality and the characteristics of the focusing optics. A parabolic welding head is a better choice for higher-power welding because the mirror is less susceptible to damage and can be readily cleaned with a mirror polishing cream. Also, because the back of the mirror can be directly cooled with water, it is much less likely to be damaged by thermal stress or change its focal characteristics with varying laser power. Automotive manufacturers, Tier 1 auto suppliers, and other high-volume manufacturers have been implementing laser welding successfully for years, but it is much less prevalent in small and medium-size businesses.
The welding point penetration and effective penetration decrease with the laser tilt angle. When it is greater than 60°, the effective welding penetration decreases to zero. Therefore, the best choice for welding aluminum alloy is sharp wave and double peak wave. Under the strong vibration of light electromagnetic waves, strong reflected waves and weaker transmitted waves are generated. The reflected waves are not easily absorbed by the aluminum alloy surface, so the aluminum alloy surface has a higher reflectivity to the laser at room temperature. It can be seen that aluminum alloy has the characteristics of high reflectivity to laser light and low absorption rate.
Another benefit of the high power density of a laser is that it melts material a lot faster than a flame or an electric arc. This allows for faster welding rates and the creation of stronger welds. The depth of penetration in laser welding can be controlled by adjusting the power supplied to the laser. For very thing materials, pulses of the laser can be used instead to prevent damage to both the material and the machine. The number one thing that makes the transition to laser welding worth it is that it fits right in with an automated manufacturing process.
Carbon steel is a classic example of a metal that tends to become brittle and crack when cooled too quickly. Pulsing controls heat input, increasing quality of weld seams and preventing cracking. A variety of input and output signals are very easy to achieve the machine’s automated production and assembly line production. Excellent spectral system minimizes energy loss to ensure that the laser energy of each fiber is almost the same. It adopts a specific fiber to achieve the welding of tiny solder bumps.
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.
It adopts optical fiber transmission, can realize remote welding, conveniently to equip with automatic welding workbench, manipulator, assembly line and other equipment together to work. More uniform light spot and more beautiful solder joints after the light transmission. A benefit for both the repair shop and its customers, pulsed laser welding is more precise so that the repair process is shortened, due to limiting the damage to surrounding areas of the weld.
And lasers are indispensable in today’s popular stone-in-place casting methods, permitting castings to be rapidly assembled and porosity to be filled while posing very little hazard to the stones. A Handheld fiber laser welding machine is a new type of high-power, high-end continuous welding tool which adopts a high-quality fiber laser source to produce a fiber optic light beam. After transmission processing, the light is focused on the workpiece to achieve continuous welding. It avoids the two thresholds of thermal strain and post-treatment, and is environmentally friendly and pollution-free, greatly improving the joint strength and quality of welding. Aohua is a high-tech modern enterprise specializing in the research and development, production, and maintenance of laser equipment. Our primary line of products covers a broad range of laser machines, including metal laser welding machines, laser spot welders, laser wire stripping machines, laser cutters, laser punchers, laser marking machines, and laser cleaning equipment.
Compared to common laser welding, HW-A wobble laser welding best for wider seam welding and deep penetration welding. This process is characterized by high efficiency and high welding speeds. This process is used in applications requiring deeper welds or where several layers of material have to be welded simultaneously. For example, our budget pick, the Neutec® PulsePoint™ Plus 20, delivers up to 20 joules of output energy. Although 20 joules will be enough for most laser-welding applications, especially on silver, if you need to work on platinum and titanium, for example, you’ll want a more powerful tool.
Most systems also offer the option of a cover gas, normally Argon, to reduce any discoloration, oxidation or contamination. Standard laser welding heads are designed to focus a collimated laser beam to ONE required spot size, keeping the beam path static. This standard configuration limits each setup to ONE specific application.
1000W, 1500W, and 2000W power options available to meet various demands for welding depth and work efficiency. A fully sealed laser chamber ensure the optics longer life and more stable performance overall. The adjustable laser arm allows flawless welding from small to larger sized 3D sign channel letters. Laser welding has been widely used in the electronics industry, especially in the microelectronics industry. According to the U.S. metal market statistics, by the end of 2002, the consumption of laser-welded steel structures will reach 70,000 tons, a threefold increase from 1998.
The concept involves passing a focused laser beam through an upper, laser transmissive part to the interface of the two parts to be joined. The laser light is turned into heat energy as it is absorbed by the lower joining partner. The heat created at the interface creates a molten weld seam and the two plastics are fused. There are handheld laser welding machine suppliers, mainly located in Asia. The top supplying countries or regions are handheld laser welding machine, China, and 99%, which supply %, %, and % of respectively. The company has been awarded seven new patents for visible laser technology and its applications across 3D printing and material processing.