Wuhan HGLaser Engineering Co.,Ltd, one of the largest laser equipment suppliers in China, possesses its own technology research centers. UW1200 The UW1200 is an universal 3 to 5 Axis workstation for precision 2D and 3D laser processing of parts up to 50 lbs (incl. fixture). MPS Rotary The MPS Rotary is our multi-purpose laser workstation with rotary table for a wide range of laser material processes. Enjoy full access to the digital edition of STAMPING Journal, which serves the metal stamping market with the latest technology advancements, best practices, and industry news. A corresponding cross section of an overlap flange, cut and edge-welded with a IPG Photonics YLR kW fiber laser is presented in Figure 4.
However, an increase in pulse width decreases the peak power, so increasing the pulse width is generally used for heat conduction welding methods, forming a wide and shallow weld seam size, especially for lap welding of thin and thick plates. In the process of a laser pulse signal, the reflectivity of the metal changes with time. Therefore, high power density is very beneficial for material removal processes such as punching, cutting and engraving.
Given that tool steels for cores and cavities are typically hardened to about RC , that’s a 20-30% reduction in hardness. With pulsed laser welding, the softening is much lower, about 2 to 4 points RC. The pulsing of the beam (typically about 5-30 pulses per second) allows very fine control of how much energy is being directed to the weld. The laser is directed in high-energy bursts that allow the welder to move at a higher speed without generating more heat than necessary. With pulsed laser welding, a very precise beam is aimed at the filler material as it is laid down. Besides being more accurate to position, the width of the beam is highly controllable, with Alpha’s welding lasers, between 0.2 and 2.0 mm in diameter.
As the beam follows the weld path, the two plastics are brought to their melting temperature but stay below their vaporization temperature. The weld is achieved through the intimate contact of the two parts at the melted weld path—a butt weld. Conduction welding creates welds at or just below the surface—preventing welds from traveling deep into the material.
As with a disk laser, fiber lasers offer excellent beam quality, fiber-optic capability, and no moving parts. Because it requires very long focal length optics, typically 20 to 40 in., the beam will not focus as tightly, which reduces the laser’s intensity and, therefore, the speed and penetration for any given laser power. For that reason, a remote welding application has more critical requirements in terms of laser power and beam quality. Though part fixturing for laser welding can be quite involved, the process of laser welding is actually very simple, and it can be performed on the most basic of machines, including an everyday laser cutting system.
It needs to be determined with actual uses because its supporting product quality, service are not all the same, and the power requirements are also different, etc. You can bring your samples to MORN LASER laser factory for proofing test to determine your welding plan, or email your product images with detailed description. The LASERDYNE 811 fiber laser system addresses the next generation of laser processing challenges, including additive manufacturing, and offers high-speed welding, drilling, and cutting capabilities. Low to medium power CW fiber lasers can be focused to small spots with galvanometers and long focal length lenses allowing remote laser welding. There are many advantages to using longer focal length lenses with a larger stand off as it increases the work area significantly. For example, remote welding stations equipped with fiber lasers can weld complete door panels.
Hybrid Laser GMAW welding is an automated, high performance welding process which results in a very narrow heat-affected zone with deep penetration and high travel speeds relative to traditional processes. This breakthrough approach combines the highly focused intensity of a laser with the joint filling capability of the traditional MIG process. By combining the two, hybrid laser welding provides a unique opportunity for thicker welds with less filler metal or higher travel speeds than typical welding, depending on the material thickness. Depending on a TIG welder’s skill level, the bead path can include peaks and valleys. Conversely, pulsed laser welding enables users to start and stop the operation at precise positions while depositing a more consistent bead height.
As the name states, the Continuous Wave lasers deliver a continuous, uninterrupted output. This output can have an upslope (soft-start) when switched on, an energy modulation while active, and a downslope when switched off . Of course, this type of laser can also be switched on and off to create pulses. We hope that our laser welder reviews and buying guide will help you find the best product for your specific needs.
The list of materials that can be welded with lasers is long and includes super strong metals like titanium and carbon steel. In terms of sheer power density, the only technology that can complete with laser welding is electron beam welding. On the other hand, the health risks associated with laser beam welding are minor.
When you cant handle a welding machine you must always seek professionals’ help. The laser weld is thinner than that obtained with electron beams, making the process unsuitable for welding high reflective metal. This technology requires high assembly accuracy during processing to avoid laser beam deflections on the parts.