Resistance Tape Welding
In tape welding, the contact is placed against the carrier between the two electrodes of a resistance welder. With proper pressure and current flow from the electrode thru the carrier and contact to the other electrode, a weld nugget is obtained due to the localized heating and ultimate alloying of the weld projection and carrier material.
 Either a single or double throw contact arrangement can be achieved by welding. Very high production rates can be obtained on automated welding equipment. Resistance welding is yet another process adaptable to Deringer assembly equipment. Normally a spring arm or carrier to be welded does not contain the locating hole that is present for rivet assemblies. To obtain the proper contact location, piloting of the strip and fixturing is required to register the contact to a feature of the carrier. Resistance tape welding also requires the proper selection of electrode materials and the proper weld projection for the type and thickness of carrier material. Our engineers will assist in this selection. Deringer is specially equipped to handle both low and high volume weld assemblies and is a leader in this technology. A variation to Resistance Welding is Resistance Brazing. The process is identical to welding except a braze alloy is used as a backing on the tape rather than a high resistance material. This configuration typically yields a higher bond area and lower electrical resistance under load. |