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Laser Components USA, Inc.
116 South River Road
Building C
Bedford, NH 03110
USA
Phone: +1 603 821 7040
E-Mail:info@laser-components.com

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Press Releases

We regularly update news editors and other interested parties with our news ticker. All newsworthy information at LASER COMPONENTS is available here first! You will find the press releases in chronological order below. If you are looking for press releases from a specific department, use the navigation bar on the side. We differentiate between general company news and news from the product groups: photodiodes, IR components, photon counters, lasers, measurement devices, fiber-optical components, optics, and laser accessories.

Diffractive Optical Element for Efficient Laser Brazing

04.06.2018

Smooth Brazing Seams on Hot-dipped Surfaces


Holo/OR, industrial partner of LASER COMPONENTS, has developed a diffractive optical element (DOE) that significantly accelerates the laser brazing process for hot-dip galvanized metal sheets. It provides better melting performance and cleaner edges. The DOE made of UV fused silica has an efficiency of 90%. It splits the incoming beam into three beams with different diameters and power levels. Two smaller stripping beams ensure that the zinc coating is preheated, cleaned and preconditioned for brazing. The large center beam performs the actual brazing process. Its homogeneous energy distribution ensures that the brazing material is melted evenly. So far, similar results could only be achieved with several lasers or complex optomechanical elements.

Laser brazing uses a laser to melt the brazing material and join two metallic components together. In contrast to the welding process, the parts themselves are only minimally heated. In the case of hot-dip galvanized sheets, this means that the zinc layer evaporates only in a very limited area and the sheets are hardly deformed during processing. Providing connections with high mechanical stability without impairing the corrosion protection, laser brazing has become an important process in the automotive industry. On the other hand, oxides and impurities in the zinc layer of the soldered seam can cause irregularities such as splashes, pores or uneven surfaces. This effect is now prevented by the new DOE.



Further product information:
Diffractive Optical Elements

Manufacturer:
Holo-OR Ltd.

Contact:

Contact Person:    Michael Tuohy
Company:    LASER COMPONENTS USA Inc.
Address:    116 South River Road Building C
ZIP / City:    03110 Bedford, NH
Phone:    +1 603 821 7040
Fax:    +1 603 821 7041
Email:    tuohy@laser-components.com
 

DOE

Illustration DOE Laser Brazing

Downloads:
DOE
DOE for Efficient Laser Brazing.pdf