What is the advantage of laser welding over traditional welding methods？

TIG and MIG welding have long been considered a good choice for welding small parts because of their good finish. However, this type of welding requires skill and dexterity, and despite their controllability, they have several disadvantages. Laser welding is a good alternative, often outperforming the arc welding process, and its tightly focused beam limits the heating effect. Laser welding is capable of performing welding tasks that exceed the capabilities of traditional welding methods.

The heat required forlaserwelding is supplied by a tightly focused light beam with a diameter as small as two-thousandths of an inch. Welding is conducted by firing a series of short pulses that melt the metal to create a high-quality weld. Depending upon the particular welding task, filler material may be required as with TIG welding. Because the laser beam is tightly focused, heat input is minimized and parts can be handled almost immediately.

Laser Welding Advantages

Precise control of the laser beam offers users several benefits over TIG, MIG and spot-welding:

Weld strength: The laser weld is narrow with an excellent depth-to-width ratio and higher strength.

Heat affected zone: The heat affected zone is limited, and due to rapid cooling, the surrounding material is not annealed.

Metals: Lasers successfully weld carbon steel, high strength steel, stainless steel, titanium, aluminum, and precious metals as well as dissimilar materials.

Precision work: The small, tightly controlled laser beam permits accurate micro-welding of miniature components.

Deformation: Minimal deformation or shrinkage of the part.

No contact: No physical contact between the material and laser head.

Single-sided welding：Laser welding can replace spot welding that requires access from only one side.

Scrap: Laser welding is controlled and produces a low amount of scrap.