Oxford welders best online store: A MIG welder uses a continually feeding spool of thin filler wire as an electrode fed by a wire feed gun to form an electric arc between a wire and the work-piece metal. This heats the work-piece metal and the electrode, causing them to melt and join together to create the weld. Mig welding can be either Gas or Gasless and each have benefits. Gasless welding is far more portable as there’s no gas bottle to carry around, saves cost on having to buy gas bottles and regulators, is easier on positional welds and can penetrate deeper than Gas MIG although the welding wire for a gasless MIG is more expensive than a gasless MIG. Gas MIG welding produces much cleaner welds with no slag or spatter, is slightly better on thinner metals and the welding wire is cheaper than gasless MIG wire.
The development of inverter based machines over the last 25 years has had the largest impact in the TIG, PLASMA & STICK (ARC) machine market. Inverters solve the issues of the older type machines, performance is superior, power consumption is low & size & weight very low. However virtually everyone in the industry knows reliability & lifespan can be poor, even the best German made inverters often go bang! This means there is still a demand for the older transformer type machines, particuarly for low usage applications where power consumption is not an issue or for use in damp & dirty workshops where reliability is number one concern. However, OXFORD WELDERS now have a much better solution & no compromise! Explore a few extra info at Oxford Plasma Cutter.
Always know what gas your wire requires – whether it’s 100 percent CO2 or argon, or a mix of the two. \While CO2 is considerably cheaper than argon and good for penetrating welds on steel, it also tends to run cooler, making it usable for thinner materials. Use a 75 percent argon/25 percent CO2 gas mix for even greater penetration and a cleaner weld, since it generates less spatter than straight CO2. Here are some suggestions for shielding gases for common types of wire: Solid Carbon Steel Wire: Solid carbon steel wire must be used with CO2 shielding gas or a 75 percent CO2/25 percent argon mix, which is best used indoors with no wind for auto body, manufacturing and fabrication applications. Aluminum Wire: Argon shielding gas must be used with aluminum wire, which is ideal for stronger welds and easier feeding. Stainless Steel Wire: Stainless steel wire works well with a tri-mix of helium, argon and CO2.
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. Explore additional info at https://www.weldingsuppliesdirect.co.uk/.