The laser beam is focused on a small area called the focal point. The high-power lasers are used to weld, for example, automotive industry components, such as car body parts. High-power Nd:YAG lasers (kW ranges) often use a robot to target the optical fibers. Low-power Nd:YAG lasers (100-500 W) are utilized in the welding of small components, such as the welding of hospital equipment and electronics casings.
High-power carbon dioxide lasers (2-12 kW) are used for welding, for example, automotive industry components, transmission parts, heat exchangers and so-called tailored sheets. Laser welding using carbon dioxide and Nd:YAG lasers is becoming increasingly popular in industrial production. Pure oxygen for efficient ozone generation Neutralisation and remineralisation with carbon dioxide Innovation Centre for Aquaculture & Water Treatment Linde is committed to technologies and products that unite the goals of customer value and sustainable development.Materials & Technologies for Semiconductors Linde acts responsibly towards its shareholders, business partners, employees, society and the environment – in every one of its business areas, regions and locations across the globe. The strategy of The Linde Group is geared towards sustainable earnings-based growth and focuses on the expansion of its international business with forward-looking products and services. In the 2008 financial year it achieved sales of EUR 12.7 billion (USD 15.9 billion). The Linde Group is a world leading gases and engineering company with almost 52,000 employees working in around 100 countries worldwide. It complements the LASGON® C1 mixture that Linde introduced several years ago to replace pure helium in laser welding of carbon steel.” The program offers a complete line of resonator gases (from pure to complex, six-component mixtures), high-quality supply equipment (from change-over manifolds to pressure-booster solutions), as well as a wide variety of process gases for laser welding and cutting.īerkmanns said, “LASGON® H is the latest addition to Linde’s line of shielding gases for laser welding. The LASGON® H mixtures are an outgrowth of Linde’s LASERLINE® program, which consists of a complete line of products and services managed by a global team of experts and developed with support of Linde’s application development group.
These solid state lasers are generally used when non-linear welding or three-dimensional welding applications require delivery of the beam through a flexible optical fiber. While targeting CO2 laser welding operations, the LASGON® H3 mixtures can also be applied to solid state lasers such as disc, diode and fiber lasers which, compared with CO2 gas lasers, produce light with a shorter wavelength allowing for an easier helium substitution. It’s truly a win-win product for the laser welder,” Berkmanns said. What’s more, the LASGON® gas mixtures create less oxide buildup than pure noble gases, resulting in a clean, shiny weld surface. “Linde’s LASGON® H product line lowers fabricators’ operating costs, while enabling them to boost productivity through higher welding speeds. “Higher helium prices and tighter supplies have led fabricators to seek out less expensive shielding gas mixtures that enable them to maintain high product quality,” said Joe Berkmanns, manufacturing segment manager, Linde North America.
The new LASGON® H gas mixtures combine helium, hydrogen and argon in special formulations for laser welding of stainless steel with CO2 and solid state lasers. Linde North America is a member of The Linde Group, a world-leading gases and engineering company. – Fabricators looking for alternatives to using pure helium as a shielding gas in high power laser welding now have more options: Linde North America has introduced two new, LASGON® H shielding gas mixtures that lower operating costs and increase welding speed and product quality.
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