The diameter of the solder joint and the effective bonding surface increase with the increase of the laser tilt angle. The change of defocus has a great influence on the surface formation and penetration of the weld. Using this waveform, the weld is melted and solidified repeatedly to reduce the solidification rate of the molten pool. Studies have shown that the tendency of aluminum alloys to crystallize cracks after removing the oxide film is greater than that of the original aluminum alloys.
IPG’s unique modulatingQuasi-CW fiber lasersoffer pulsed laser welding capabilities with high peak and low average power for low heat input applications. Fiber delivery allows easy integration into conventional direct optics weld heads or galvanometer heads. Typical spot welding applications may employ either direct optics for medical device welding such as heart pacemakers. Galvanometer based beam delivery systems may be used for high speed spot welding of cellphone and tablet casings, razor blades or under the hood automotive components. Our laser cutting machine has successfully passed CE from TUV, FDA, ISO certification. SENFENG LEIMING LASER has 4 standardized laser equipment manufacturing bases with a total area of over 120,000 square meters.
Laser welding between different materials is only possible with certain combinations of materials. The connection of wire to lumped elements can be successfully achieved using laser welding, where the lumped elements can be of any size. The metal vapor absorbs the laser beam and ionizes into an equal plasma, and if too much plasma is present, the laser beam will be consumed by the plasma to some extent.
Even the most complicated of welding joints can be achieved, including the welding of dissimilar metals. The major advantage of fiber laser welding technology is it is 2 to 10 times faster than any traditional or conventional welding machine. The weld seams are smooth and beautiful and no consumables are needed, thus reducing the subsequent grinding process and saving time and cost. At Markolaser, we set very high standards for quality by rigorous quality control systems, 2 years warranty on complete laser system and excellent after sales service. Its mission is to provide the customers with reliable & precise results acknowledging the highest quality standard demands of the industry.
Laser welders are capable of delivering a precise pulse of light with accurate, repeatable power, energy and duration. When the laser pulse is focused into one place – a small spot – (adjustable anywhere from approximately 0.02 to 1.0 mm (0.001”-0.040”) in diameter) on the part, the power density is sufficient to cause rapid melting to create the weld. The high power density enables efficient absorption of the laser by creating the “keyhole effect.” As the pulse ends, the liquified metal resolidifies and creates a small spot weld.
LightWELD is a Class IV laser system and routine precautions are required for the safe operation of the equipment. Operator protective equipment including welding gloves, welding shield and 1070 nm laser-safe glasses are required. Electro-optical conversion rate-high laser light output per second is optional. Not only can do pulse welding, but also continuous welding at high frequencies. A variety of hand-held laser heads are available for various needs such as external welding, internal welding, right-angle welding, narrow-side welding, and large spot welding, etc.