Several advices on welding equipment, MIG and TIG welders, plasma cutters. ARC Welding : ARC welding is one of the oldest welding processes around. It uses either an AC or DC power supply to create an electric arc between the welding rod and the workpiece metal to melt the metals and join them together. This style of welding is relatively inexpensive and very portable but it does require some practice to get good consistent welds and the welds will probably require some arc weldercleaning up afterwards. ARC welding is less suited to welding thinner materials but there is a large range of specialist electrodes (welding rods) available for ARC welders depending on what materials you are welding. ARC welding is versatile but more suited to heavier applications.

Top welding tricks: how to become a better welder and how to pick the top welding equipment. If a ball forms on the end of your rod when welding you are doing something wrong. It is usually one or more of these things: Too long an arc… • Too much torch angle • Not enough amperage for the rod size • Bad filler rod angle • Or some combination of all of these things. The 2 things I see most often with noobs are too long an arc AND too much torch angle. A long arc sets TIG welding back a few decades because it’s more like gas welding with an oxyfuel torch. The heat is not concentrated and you get this big heated arc plume like you get with a gas welding torch. Why would you want that? Your arc length should not be much more than the diameter of your tungsten electrode. I know that’s pretty close and if you get too close you will be grinding electrodes more than you are welding. But if you want really good welds, you need to use a tight arc.

Look for ways to create more efficiencies in the welding process. This includes examining such things as wire diameter, wire feed speed, voltage, travel speed, gas type, transfer mode, etc. For instance, if the shop is currently welding with a short arc process and a 75/25 blend of shielding gas, it may be more effective to switch to a different gas and a spray mode of transfer. Or, a change in process may be warranted based on the condition of the part. If there is oxide on the part, it may be easier to change to a process that will overcome contamination problems rather than try to clean each part before welding. Your welding supplier should be up to date on the latest technology and be able to advise you on new processes, machinery and consumables that can optimize welding at the shop. In some cases, it may be better to double bevel a joint to prepare it for welding rather than single bevel it. It is recommended to double bevel any material that is more than 3/4″ in thickness. Just this simple change in procedure can save quite a bit in weld metal. On a 3/4″ thick piece, a double bevel will use 1.45 lbs. per foot of weld metal while a single bevel will use 1.95 lbs. per foot. Looking for the best Welding Supplies? We recommend Welding Supplies Direct & associated company TWS Direct Ltd is an online distributor of a wide variety of welding supplies, welding equipment and welding machine. We supply plasma cutters, MIG, TIG, ARC welding machines and support consumables to the UK, Europe and North America.

Use gas lens style collet bodies and cups to weld stainless steel: Use gas lens style collet bodies and cups to weld stainless steel. The screen in the gas lens allows far better gas coverage of your welds. You can use gas lenses to weld all materials is you want; they also allow you to stick your tungsten up to 1” out of the cup by increasing gas flow. Sometimes you need to extend it just to reach a tight spot. The screen diffuses gas at higher gas flow rates eliminating turbulence which is what you would get if you tried this without the gas lens. Too much gas is as bad as too little gas. (Especially for TIG welding aluminum) Typical gas flow rates are around 15 to 20 cfh. Bu it really depends on the nozzle/cup diameter. While I am on the subject, what do the numbers on TIG cups mean? I am glad you asked… A #4 means 4/16″ or 1/4″ A #7 means 7/16″. In other words the number cup means how large the inside diameter in 1/16’s. When you use a #4 cup remember to adjust the argon flow to around 10cfh. And the bigger the cup inside diameter, the more gas flow….to an extent.

The welding setup, welder settings, and electrode selection will impact how fast welders can work. Industrial welders invest time in planning the size and shape of their welding areas, how parts are laid out, and how they supply their shielding gas. Testing settings or an electrode on a piece of scrap metal, especially for a beginners, will save time in the long run. Learn more about setting up an efficient shop here. Welding Downhill Increases Welding Speed: While welding downhill is a faster way to weld, it’s not as strong as welding uphill. On most projects it’s not worth sacrificing strength and durability for the sake of welding speed. However, if the metal is thin enough, then welding downhill won’t make the weld weaker and may even be the correct technique for the job. Learn about uphill and downhill welding and see these diagrams of vertical and downhill welding.

Never forget that welding, when done improperly, can be hazardous. Electric shock, fumes and gases, arc rays, hot parts, noise and a host of other possible hazards come along with the territory. The ultraviolet and infrared light rays can also burn your skin — similar to a sunburn but without the subsequent tan — and your eyes. This is why the best MIG welding operator knows how to stay safe.

Do a practice run. This may sound silly, but you’ll find that many professional welders do this before every pass. Get in the most comfortable position you can, with support blocks in place if helpful, and run your hands along the path they will traverse as you make the weld. You will often find that a slight adjustment of your position will allow you to make a longer pass, or to move your hands with less stress. Any strain in your position will have a negative impact on the weld. Also, you build valuable muscle memory when making your practice run, which will help keep everything on track when you make the ‘real’ pass. Clean a contaminated electrode immediately! Every welder will contaminate their electrode at some point, but it’s essential that you replace a contaminated electrode immediately. I usually keep a group of pre-sharpened electrodes right on my welding bench, so I can swap them out without having to walk to my grinder. Source: https://www.weldingsuppliesdirect.co.uk/.