Advantages of laser welding

There are many advantages of using laser welder in jewellery repair as compared to traditional torch soldering.

Soldering is a capillary fill system where solder is heated with a gas-oxygen torch or open flame.  The solder then flows across and fill up the gap.  The heat used for this process is very high, and often results in a visible dark seam or discoloration in the solder area. When soldering with a torch, the heat is applied to a relatively large area resulting in heat transfer. If the user is not careful, he can burn or destroy heat sensitive stones and other heat sensitive materials that are in close proximity to the flame.

Laser stands for Light Amplification by Stimulated Emission of Radiation. Laser welding is a non-contact process in which light energy is used to weld the precious metals to themselves. The heat used in the laser welding process very localized. After welding, it results in a seamless, undetectable work zone that is not discolored in any way.

During the laser welding process, the metal adjacent to the welding point does not melt.  This precision heat source allows the user to laser weld metal in close proximity of heat sensitive stones and without affecting the stone or material.  Because of this focused heat source, the laser weld will not anneal springs or clips eliminating the need to replace damaged findings.

When using a laser welder, the beam is so concentrated, it burns away any impurities during the laser welding process, thus eliminating the need for prior cleaning or coating. Laser welding can be performed on dirty or even tarnished surfaces without leaving discoloration or dark markings.