flows across and bridges the noble metals together. Solder is an alloy that is designed to melt at a lower temperature than the noble metal one is soldering; therefore, it is a different alloy than the noble metal. The heat used for this process is very high, and thus often results in a visible seam, discoloration, or fire scale in the solder area.
Laser welding is a process in which light energy is used to weld the noble metals to themselves; this process fuses the noble metal on a molecular level resulting in a finished product that is all one alloy. When adding metal or "filler wire" with the laser welder; we will almost always add the same noble alloy. The heat used in the welding process is so localized that it results in a seamless, undetectable work zone that is not discolored in any way.
|