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  #1  
Old 12-26-2012, 2:47 PM
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Calgunner739 Calgunner739 is offline
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Default Small and quick weld job in OC area

I have a few flashlights that I really like for EDC, but they do not have belt clips on them. Is there someone who would be able to weld on a steel belt clip that I will provide, onto 3 of these flashlights? Is it possible? And how much would the fee be?

Orange County Area
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  #2  
Old 12-26-2012, 4:18 PM
donny douchebag donny douchebag is offline
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If the bodies are aluminum that's not gonna work.
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Old 01-01-2013, 3:39 PM
Bainite_Wolf Bainite_Wolf is offline
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There is no reason this could not be welded. The only reason Donny may not think so is if the body is aluminum and the belt clip is steel. And even then, yes it would be possible.
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Old 01-01-2013, 4:03 PM
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By the time you get the steel hot enough to weld the aluminum will be in a big puddle. The melting temps are too far apart.
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Old 01-01-2013, 4:57 PM
Bainite_Wolf Bainite_Wolf is offline
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preheat.
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Old 01-07-2013, 10:25 PM
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elsolo elsolo is offline
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Please share how to weld aluminum to steel, other than explosion welding.

Why not just drill and tap for machine screws?
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  #7  
Old 01-07-2013, 11:41 PM
CGT80 CGT80 is offline
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The lights are some form of machinable aluminum, according to the web site. If you found aluminum belt clips, or had them made, you should be able to have them welded on. Welders would prefer to know the alloy of the parent metal, but a non critical item like this could be tacked up with a general purpose filler.

The anodizing would have to be removed from the flashlight, where the weld would be. It can be tough to grind anodizing. Sometimes the grinds end up being deeper or wider than desired, since the aluminum grinds away easier than the anodizing. It might not be too big of a deal on a flashlight, but it can make some welding jobs a pain. TIG welding would be best. If the clip had a hole drilled in it, a plug/rosette weld could be made, and that would eliminate grinding the finish where it would be seen. The other obstacle would be to have a section of bare metal, preferably on the flash light (as opposed to the belt clip) to connect the "ground" of the welder to. The ground clamp has to be connected to bare metal. TIG would have a small HAZ or heat affected zone. The HAZ can affect the finish on the metal next to the weld and also the strength or susceptibility to cracking of the metal.

I don't know if brazing would be an option with dissimilar metals like aluminum and steel, but it requires much more heat, over a broader area. TIG will puts a lot of heat into one small spot and can do it very quickly, unlike a torch (granted I have limited experience with a small rosebud torch). Either way, it may not be good to heat the light housing that much.

How about a number 6 or number 4 tap? You could drill a hole in the light housing, tap it (to create threads) then install a screw or two with red loctite. Firearms often have small screws and it works well for them.

You could try using some epoxy. There is a carbon fiber hand guard kit for AR 15's that uses "2 ton" epoxy to attach the hand guard section to the aluminum barrel nut. You could use sand paper to rough up a small area under where the belt clip would be on the flashlight and then epoxy the clip in place.

While, welding may work, it may not be ideal or the easiest way to solve your problem. At roughly $30 a pop, do you want to take a chance of damaging the light by welding? If you use screws, make sure you know what is inside where you will be drilling into.

Good luck.
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Old 01-08-2013, 9:58 AM
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This is basically a product selection FAIL. Live with it, or get a brand with pocket clips
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  #9  
Old 01-22-2013, 10:45 PM
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V8toytruck V8toytruck is offline
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Hate to rain on the parade but there is a reason you NEVER see welded pocket clips on any flashlight. Chinese junk to Surefires.
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  #10  
Old 02-02-2013, 9:09 AM
schonertod schonertod is offline
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ya being a welder my self i would say taping the holes and putting in screws is your best option. Welding Alum to steel is a pain and takes a lot of preheating on the steel and it still wouldn't really be welded it would be brazed because the metals still will not accept each other completely
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