In conventional GMAW, the electric arc naturally follows the path of least resistance between the electrode and the base material. The arc is difficult to control, and under certain conditions (e.g. welding materials of different thicknesses) good welding seams are almost impossible.
When the laser beam is "added" to the gas metal-arc welding process, the arc follows the laser beam path, and is stabilized. Not only is the quality of the welding seam greatly improved, but welding speeds can be increased up to 100 % for the same welding depth. Also, oscillating seams or seams with a complex geometry are easy when using laser beam stabilization. The new welding process can be used for conventional steels as well as for high and higher strength steels, or for aluminium materials.Since the laser used for this welding method has a relatively low output power (200 to 400 watts), investment cost are also kept at a minimum, making this process especially attractive for small and middle-sized welding companies.
The economic use of this innovative welding process has already been verified by two industrial partners. The LZH carries out feasibility tests for various materials. Also, support for process integration can be offered.Contact:
You can find the LZH press releases with a WORD-download and when possible illustrations at www.lzh.de under "publications/press releases"
Michael Botts | idw
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The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
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Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
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Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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