need to reconnect metal to metal?

Question

Hey, as shown in the following picture i need to reconnect a metal wire bit to a metal plate. It used to be welded but came undone. Is there any other way to reconnect it efficiently that doesnt involve welding. Ive allready tried blue tac with little success. thanks

http://img169.imageshack.us/img169/9990/carweldingwo3.jpg

Answer 1

Solder it back on is the only reliable way. Can get a cheap soldering iron just about anywhere. But be careful - THEY GET HOT!!!

Answer 2

A small electric soldering "pencil" iron is inexpensive and won't get too hot to damage the circuit board. Places like Radio Shack would have one and an extra little roll of solder designed to be used on electrical circuits. Your metal wire and circuit board metal pad are already "tinned" meaning they have a coat of solder on them so that when you apply the iron to the pad (after the iron is hot), the solder on the pad will melt and you simultaneously hold the tinned end of the wire to the pad to solder it there. Normally you have to tin fresh metal parts before you can solder them together and they have to be clean and sometimes you need solder "flux" to get the solder to flow onto the metal properly. Don't hold the hot iron on the pad any longer than necessary to see the solder melt on both the pad and wire. Then hold steady and blow on the connection to speed cooling.
Two cautions. One is that the neighboring pads are sometimes very close together on a circuit board, so you have to be careful not to heat the neighboring pad as well and end up bridging two pads together that shouldn't be soldered together. Secondly, hot solder can be flunk through the air and into your eyes if the wire acts like a spring and flings it by mistake, so wear safety glasses. Periodically the hot solder tip has to be cleaned while the iron's hot by wiping it quickly with a small wet sponge which sometimes comes mounted on more elaborate soldering iron pencil stands.

Answer 3

That's not WELDING, but soldering.

Go to radio shack and buy a soldering IRON (not the gun -too hot). Also get some solder to melt (think of of it as metal glue) and solder past (or rosin flux).

Apply little bit off flux on to the surfaces (and wire). Heat up the iron, then heat up the wire and the pad. Melt the solder using the HOT wire and surface (don't melt the solder directly using the hot iron). DONE.

Don't get any of that "cold heat" crap.
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Don't know too much about "liquid solder" but I read here that it isn't a great idea.

http://www.fieldlines.com/story/2006/1/22/225629/641

Learning to solder isn't that hard.
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OK, too much info. Get the stuff and come back here. :-)

Answer 4

By looking at the picture soldering it back on looks like the only way to go.

Answer 5

You can buy a product called "Liquid Solder." Put a drop where you need it and it will harden to something akin to solder, but you don't need the soldering iron, flux, etc.

Answer 6

Ok first off that was not welded it was soldered.
Soldering irons are fairly cheap but they do get very hot. be careful

Answer 7

Solder it