Views:15 Author:Golf Publish Time: 2020-01-07 Origin:Site
3.New advancements in laser welding called "metal deposition laser welding" are similar to MIG in that they introduce a filler material by concentrating a cone of powdered metal into the laser's focus point. It will help to solve one of laser welding's biggest obstacles: part fit up. Since the laser can only create enough heat to melt the metal in a small focus point it doesn't weld consistently well when part fit up varies. Any gap between the 2 members will cause an inconsistent weld. For this reason the most common form of welding (at least in a production environment) is MIG, because MIG welding is currently the most consistent and easiest at welding inconsistent fit up of parts because of the filler material. You can use a filler rod while TIG welding but this takes more skill on the welder's part.
4. The laser welding can create much higher energy densities than practical with MIG or TIG allowing for things like laser hole drilling, or "keyhole" welding.
5. No Finishing of weld With inert gas shielding, a laser weld in stainless steel or aluminium normally requires no post-processing (grinding or dressing) after welding, the weld finish is bright and oxide free and can be typically coated or painted without further cleaning steps.
6. To use on difficult areas o of materials, Since the laser beam is a “line of sight” process, the laser can pass through gaps in a structure to weld areas from the rear, where it would not be possible to introduce a TIG electrode. Using a camera to view through the laser optics, it is easy to align the beam to a precise feature and perform welds in difficult-to-reach parts of the structure
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