WJM Technologies

P.O. Box 4018
Cerritos, CA 90703

Phone: 562-743-7576


Sales Contact
Girish Kelkar - President

Recent Content on TheFabricator.com for WJM Technologies

August 8, 2007
Mode of least resistance
With the advent of transistorized controls in resistance welding, power supplies are available in which feedback can be used to control current, voltage, or power delivered. The use and benefits of these control modes are not well understood, leading to underutilization of the technology. It is important to understand the fundamentals of the control modes as applicable to DC and inverter power supplies and the special situations that you might encounter in their application.
November 9, 2004
Why use multiple-impulse resistance welding?
Multiple-impulse welding isn't uncommon, but it's not usually the first choice for most resistance welding applications. However, experiments with this type of resistance welding demonstrate that it has a wider range of applications, especially when its modified heat balance is understood