mindtomachine.blogspot.com
From mind to machine: DIY 110 V Portable Arc Welder - with DC!
http://mindtomachine.blogspot.com/2013/03/diy-110-v-portable-arc-welder-with-dc.html
From mind to machine. Sunday, March 03, 2013. DIY 110 V Portable Arc Welder - with DC! I needed a more portable arc welder so I built this unit 110 V unit that weighs 40 lbs. It is made entirely of scrap parts. The frame is wood, the welding and power cables are from appliances, and the transformers/wiring are from microwaves ovens. The bridge rectifier is rated at 60 amps and converts the AC to DC, multiplying it up to 75 VDC open circuit, which goes to the filter choke. Another microwave transforme...
weldpedia.com
7 Effective Ways to Prevent Weld Undercutting ~ Weldpedia
http://www.weldpedia.com/2015/05/7-effective-ways-to-prevent-weld.html
7 Effective Ways to Prevent Weld Undercutting. Moreover the incorrect usage of gas shielding, wrong welding technique and position, are other primary causes of undercut imperfection. Undercutting always has been a serious concern in steel welding industries and efforts have been made to resolve this problem in recent years. Following are the preventions that effectively assist, in reducing the concentration of undercutting in your weld. 1 Correct Heat Input. 2 Correct Electrode Angle. Making a weld with ...
weldpedia.com
Five must to know welding electrode coatings ~ Weldpedia
http://www.weldpedia.com/2014/04/five-types-of-welding-electrode-coatings.html
Five must to know welding electrode coatings. In welding, flux always has a vital role in a number of ways and that is why it is frequently utilized in electrode outer coatings. Sometimes it is present in core of the filler wires (as in case of FCAW wires and flux cored TIG rods). First you need to know that what are the primary functions of flux in a welding process? To remove impurities from the molten metal. In slag formation which can be easily removed from the weld. 3 Iron oxide electrodes. And make...
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