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 spoons21369 
Member
Joined: Jan 2010  CA, USA
 Posts: 283 Feedback: 100% (1) |
Posted: 6/15/2012 1:31:20 AM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT |
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ratfink57
Member
Team Member
Joined: Aug 2007 UT, USA
Posts: 941 Feedback: 100% (3) Link To This Post |
Posted: 6/15/2012 8:27:14 AM
I have been told to get the 110v version, which I did. Only used it a couple times so far, still getting use to it but it works. One problem I am having it that the tension adjustment knob it too short so I am having trouble keeping it tight after the tips have been filed clean a few times.
You will need AK-Builders lower tong to get inside the receiver. |
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Posted: 6/15/2012 4:11:11 PM
why the 110v version over the other options?ive read to avoid the 220 version because it has a tendency to burn through the receiver.
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Posted: 6/15/2012 5:27:32 PM
The 110 will give you good welds on the 1mm metal of most AKM receivers. It's a bit underpowered if you are welding 1.5mm steel plate together.
If you connect the 110 close to your fuse box, and use a finely pointed tip, you will get burn-through. Use an extension cord and make the tips larger to avoid this. The secret to factory welds are a lot of pressure and fairly wide tips which do need a lot of juice to heat everything up. But for home building the 110 is plenty. Only time I've had an issue is welding a grip plate to the bottom of an S-12. |
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jdoming728
Member
Team Member
Joined: Aug 2010 NM, USA
Posts: 1235 Feedback: 100% (1) Link To This Post |
Posted: 6/16/2012 12:23:22 PM
I got the 220 version and have not had a problem yet.. You just have to make sure all your metal parts are very clean...
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webtaz99
Member
Team Member
Joined: Mar 2005 TX, USA
Posts: 17197 Feedback: 0% (0) Link To This Post |
Posted: 6/16/2012 9:02:01 PM
I got a 110 version, and added a high-power diode to cut the power in half.
Nice welds, no burn throughs. |
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Posted: 6/20/2012 6:27:33 PM
I use the HF 110v spot welder but I built my own lower welding tong.
Here is how. You can make your own lower spot welder tong out of a 8 1/2" piece of 1/2" rigid copper tubing, a piece of copper 00 cable without the plastic covering, & a MIG welder tip. Like this, slip the cable through the tubing & crush down to 3/8 to 1/4" the first 2" of the end.(you can use your hyd. press or just a hammer & anvil) You can fill in the back end with solder or a few extra strands of the 00 copper cable. Drill & tap a 1/4-28 hole in the crushed end of the tong for the MIG tip. Screw in a Mig tip, mount in your spotwelder, align tip to match upper tong and you are ready to weld your rails in.  lower tongs-new & old
 Tong end crush thickness
 00 copper cable
http://www.harborfreight.com/pack-of-10-003-inch-08mm-mig-welding-tips-95645.html MIG tips This is the tong I use & I have built many AKs using flats that I needed to weld the lower rails in. It will fit into the receiver even after riveting the trunnions in. And the best thing is "total cost about $10" |
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Posted: 6/21/2012 10:47:31 AM
What do you guys do about heat treating the receivers after completion?
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jdoming728
Member
Team Member
Joined: Aug 2010 NM, USA
Posts: 1240 Feedback: 100% (1) Link To This Post |
Posted: 6/21/2012 11:56:06 AM
I use a Mapp torch and heat and treat the wear areas.. I found this to be he best method for me but Its better to heat treat the whole receiver if you have the means..... I heat treat all the holes (except the rivet holes) both top and bottom rails and only after I have done all my welding and then sandblast and paint or park and paint...
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Posted: 6/21/2012 6:16:54 PM
Originally Posted By poorman:
What do you guys do about heat treating the receivers after completion? I too use a Mapp torch and heat and treat the FCG axis pin holes. I heat treat the rails & ejector before I spot weld them in, if done right you shouldn't get the rails hot enough to remove the hardness. Just stay away from the ejector, it has a bad tendency to get in the wrong place & be touching the welder tong when you flip the switch.(MELT) 
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Posted: 6/21/2012 9:02:50 PM
thanks for the DIY lower tong paintballer ill have to do that,has anyone tried to heat treat the entire receiver in a bed of coals?i saw that method used somewhere in this forum seemed like a pretty simple way to heat treat.
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Posted: 6/24/2012 11:54:31 PM
Originally Posted By spoons21369:
thanks for the DIY lower tong paintballer ill have to do that,has anyone tried to heat treat the entire receiver in a bed of coals?i saw that method used somewhere in this forum seemed like a pretty simple way to heat treat. I not sure if coals alone will get it hot enough to heat treat but if you blow air through them it mite. |
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