Basics To Aluminum Alloy Laser Welding
Using high average power lasers and relatively small spot sizes to weld thicker metals requires a technique known as keyhole welding. The keyhole produced by the laser very effectively traps the laser beam inside the joint leading to deep penetration and quality welds at high speeds. The high brightness of fiber lasers allows longer focal length lenses with more depth of focus to be used for keyhole welding. This means less sensitivity to focus position which greatly improves the ease with which high quality welds can be achieved.
Therefore, the general plate butt assembly gap and spot seam deviation should not be greater than 0.1mm, the wrong side should not be greater than 0.2mm. Negative defocusing, greater depth of melt can be obtained, which is related to the formation process of the melt pool. When the surface temperature of the material rises to the melting point, the reflectivity decreases rapidly, and when the surface is in a melted state, the reflection is stabilized at a certain value. It can moderate the accuracy requirement of the interface of the base material end face. It can increase the depth of melt, improve the weld formation, and obtain high-quality welded joints. The weld channel solidifies relatively quickly and may have porosity and embrittlement defects.
Branson’s patented laser plastic welding technology delivers the cleanest and most precise joints. In the case of steel sheets, especially thicker cross-sections, seam welding is preceded by tack welding. The staples stabilize the sheet metal parts and guarantee constant precision during joining.
Performance Family Our Performance is the ideal Laser Machine for manual laser welding. Integral The Integral laser welding system features the same integrated user concept as the Select, CNC control and all technical innovations. Its xy table moves workpieces with a maximum weight of 500 kg fast and very precisely.
As mentioned earlier, Al at room temperature can reflect 80% of the energy. Coupled with its good thermal conductivity, a large laser energy density threshold is required to produce “small holes”. The 2000 series, 6000 series and 7000 series alloys have a higher tendency of hot cracking, poor welding seam formation, and significantly reduced aging hardness after welding. According to the process characteristics, aluminum alloy can be divided into deformed aluminum alloy and cast aluminum alloy. Laser Welding Machines are widely used in aviation, machinery, electronics, mobile phones, communications, chemicals, electrical appliances, hardware, automotive manufacturing. Han’s Laser Corporation is a wholly-owned subsidiary of Han’s Laser Technology Group, a global industrial laser technology leader.
Laser plastic welding, also often referred to as through-transmission welding, is a process of bonding plastic using focused laser radiation. Our spot welders are perfect for anyone needing a precise tool with maximum versatility in welding metals. The ergonomic design helps the operator remain comfortable as they create or repair metal parts. CLC’s laser welding technology rooted from the project in 2015 for transcatheter heart valve welding for Edwards Lifesciences. The different applications possible with each laser type are very dependent on the wavelength of light produced, which dictates the form of energy absorption in the plastic. But if you include the costs for capital equipment, floor space, overhead, and labor—that data to the right—things get more interesting.