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Friday, January 09, 2009

Capacitive Discharge Spot Welder



It has been a very busy year end for me...

My magnetic loop antenna project is still on hold as the cnc machine is now disassembled.
I cant run the machine at the new place... boring!

At the moment, I am in the process of making a Capacitive Discharge Spot Welder or Hobby Spot Welder for a friend. It uses a large capacitor bank and a high current triac to dump the energy through a solid copper probe. My current setup have about 190 Joules of energy at 25VDC.

The charging is done via LT1083-adj regulator with current limit and switched using a Solid -state relay. Previously, the mechanical relay I used gone "kaput" as the contact is welded together due to large current surge and sparks.

3 comments:

beto said...

Spot-welders are interested I would want to know if you could tell me as to build him/it.
I attend your answer.
my address and: beto66@inwind.it.
this message and translated with google because I don't know the English.

anonymous said...

Ciao, Ti ringraziamo per l'interesse .. Io non tenere tutta la documentazione per questo. In realtà ho avuto l'riferimento anche da internet ... Mi auguro che si può trovare ... se hai ancora problemi .. mandarmi una email 9w2dtr # gmail.com

Spot Welder Machine said...

Great information you have shared. Thanks for sharing. Can you share more detail information on it?