My experience in resistance welding:

While working for Pertron Controls Corporation:

Redesigned Pertron Control for automotive applications:   -Patent Number 4,456,809   -Modular construction = Data Entry Panel and Single SCR unit.   -Cost reduced to 1/3 of the original (PWC-300) Pertron Control.   -Addition of features; stepper, repeat, last weld data, and more.   -Fully programmable using alphanumeric welding terms. Worked with Chrysler ODMTC to produce their "SA2" weld control specification and became a 50% supplier of Chrysler controls (Medar was approved to this spec. to supply the other 50%). Worked with Ford AAD (Div. of Body-Assembly) to become the first control to officially be approved to the "10TS" control standard.

At   ADC, our weld control introduced some "firsts" to automotive applications:

Drastic reduction of SCR failures Last weld data, for the last hundred welds Eliminated SCR condensation problem Compact size (5"x 6"x 7" = 0.13 Cu.Ft.!) Isolated cooling water from 480 VAC Stepper boost applied every 2nd weld Monitoring of secondary deterioration SCR short trips breaker without control power Memory backup without troublesome batteries

Direct interface to robots Elimination of load resistors Touchdown weld initiation Network integrated RS485 serial interface Digital current calibration Current set-up in K-amps Current regulation

Formal Resistance Welding classes taught at these plants:

If you buy from any of these companies, rest assured that they will call me for any weld problem, long before the parts go to you.

Red entries are where Aaron Bacon has assisted. Aaron is able to instruct and troubleshoot in my absence.
Also Aaron is very computer-literate, and has setup the Moraine weld gun database in one weekend!
Just ask Steve Goebel, the Welding Coordinator, was he surprised with Aaron's work!
Green entries are new accounts Aaron has setup in his first year as manager of Update Technology.