Installing your mig welding wire is really quite simple. The first step is to make sure that you are using a very high quality mig welding wire. Why? You can have so many troubles with mig welding wire not feeding, burning back, excess spatter, birds nesting and so on.

Assuming there is no old spool of mig wire on the mig welder. The first think you have to do is physically open the welding machine or wire feed case up.p>

Then you will have to remove a cotter pin or a large plastic nut that is attached to the hub or axle the welding wire will slide onto. Now open up the box of mig wire, check that it is the correct size wire that you want to use and the correct type of wire. Also give it a quick glance and check for rust.

Lift up the spool and slide it onto the axle/hub. Replace the cotter pin or plastic nut.

Now go to the end of the mig welding gun and remove the nozzle / shroud. This will either pull off or screw off depending on the brand of welding torch. When it’s off, remove the contact tip by unscrewing it with pliers.

Set the nozzle and contact tip aside.

Go back to the mig wire, and in between the spool of mig wire and where the welding torch attaches to the front of the machine or remote wire feeder you will find the feed rollers or drive rollers.

There will be some kind of latch which can be flicked open. This action will raise the top feed roller and allow you to feed the wire onto the drive rolls.

Note that on the feed rollers there are usually two grooves. The wire needs to sit in one of these grooves. On the side of the feed rollers will be a punched marking showing what size wire to use in which groove.

Usually mig welding machines come with two different sized grooves. For example 0.9mm and 1.2mm which is 0.035” and 0.045”.

Make sure that the mig welding wire diameter fits the right sized grove in the feed roller. When running a precision welding wire you need to use the right feed roller groove for the correct diameter sized mig wire.

You can get away with using slightly different sized feed rollers when you run a cheapie low quality mig wire. Why is this? This is because the wire diameter tolerance will go up and down. So the wire will be getting thicker and thinner all the time which will compensate for the slightly wrong sized feed rollers.

I do not at all recommend this for anyone who is serious about making money in a production welding environment or welding and fabrication business. It will cause to much trouble.

Now you will have to carefully and I stress carefully find the end of the mig wire and hold onto it and don’t let go. If you do it will go whirl, whirl, whirl and you will have a big mess of mig wire all over the place.

With the end of the mig wire feed it into the driver rollers, you will have to go through a small feed tube. This helps guide the wire over the feed rollers.

Keep feeding the wire through past the driver rolls and into the start of the mig welding gun. Feed it through about a foot or so.

Lower and lock down the latch for the drive rollers, and adjust it right back to number one or the lightest setting possible. Then screw / adjust the tension down a bit.

Next if you are using gas, turn off the bottle to save your expensive welding gas lay you welding gun and cable out straight from the welder and pull the trigger. The wire will slowly fed through the liner and pop out at the tip holder. You can crank up the feed speed adjuster to get the wire through faster.

Now when the wire emerges put the contact tip or contact tube back on. Put the nozzle back on and trim the wire to about half an inch sticking out.

You are just about done now. Turn you gas back on. Now ideally you want the wire feed tension mechanism to be as light as possible so that it does not deform the shape of the welding wire. Deforming the shape of the welding wire will case premature wear on the feed rollers simply because of too much force. It will cause irregular wear on the contact tip and the welding wire will have tiny bits of material shaved and squeezed off it which will go down into the liner of the torch, and over time cause it to build up internal resistance which will cause more trouble welding down the track.

For more go here

http://www.learn-how-to-weld.com/mig-wire-installation.html

Cheers,

Peter Apalais

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Learn the basics of welding from an expert in arc, tig and mig welding in this free DIY video. Expert: Malcolm MacDonald Bio: Malcolm MacDonald graduated from Connestoga College in 1968 from the Fitter Welding Program. He currently teaches a welding apprenticeship program. Filmmaker: Melissa Schenk

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How to weld: MIG, TIG and ARC

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Storage and Handling

• After finishing gas welding, Always keep gas and oxygen cylinders with minimum of 20 feet distance between them. Or, divide them with a right firewall.
• As the cylinders can caught fire easily, keep the flammable and combustible materials away from cylinders.
• Store cylinders away from physical injure, heat, and tampering.
• Always maintain cylinders in an upright position. If possible, Chain them steadily to keep them from falling over.
• Ensure that the cylinder valves has been closed or not before moving.
• Defending caps or regulators should be kept in place.
• Roll cylinders on bottom edges to move it from one place to another place. Do not pull it.
• Try to reduce cylinder movement as much as possible, while transporting it.

General Gas Welding Safety Tips

• To lift up gas cylinders, use the equipments that are designed for lifting it. Do not use any other tools for lifting it.
• Check torches and clean only with the suitable tools.
• Blow-back protection torches must be used while welding.
• Always keep an eye on the equipments and ensure any leakages at all connections. This can be done by using an approved leak-test solution.
• Inspect hoses for leaks and worn places.
• Replace bad hoses at regular intervals.
• Keep fire extinguishers easily reachable places, at the welding site.
• Keep away hoses and cylinders from sparks, flames, and hot metal as the sparks create holes on it.
• To fire the flame in welder, always use a flint lighter.
• Stand to the side when opening cylinder valves.
• Use two-stage regulators whenever feasible.
• When using a single-stage regulator, open cylinder valves very slowly. This keeps rapid high pressures from exploding the regulators.
• When using a single-stage regulator, only open the acetylene cylinder valve 1/4 to 3/4 turn.
• Leave the wrench in place. By doing so, you can close the cylinder quickly in case of any emergency.
• Open and light acetylene first. Then open and adjust oxygen to a neutral flame.
• When shutting off the torch, first you have to close the acetylene torch valve You might hear a pop as the oxygen blows out the flame, but the flame will not burn up the acetylene line.
• When you done:
  • Close cylinder valves.
  • Bleed the lines to take pressure off regulators.
  • Carefully coil hoses.
  • Restore equipment.

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Learn setting up the welding machine from an expert in arc, tig and mig welding in this free DIY video. Expert: Malcolm MacDonald Bio: Malcolm MacDonald graduated from Connestoga College in 1968 from the Fitter Welding Program. He currently teaches a welding apprenticeship program. Filmmaker: Melissa Schenk

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About Author

Brayan Peter is an expert author for Welder, Welding, Welders, Tig Welding. He written many articles like Plasma Cutters, Welding Equipment, Plasma Cutter, Arc Welder, MIG Welder, Welding Machines, Diesel Generators, Welding Helmets . For more information visit our site http://www.everlastgenerators.com. Contact him at weldings.info@gmail.com

Learning how to weld is not as hard as you might think.

All you have to do is simply follow a few basic steps, to get that welding down pat. It’s like baking a cake or building a house. You need to follow a set way of doing things.

There are a few basic and easy to learn steps that you need to take into consideration before you even attempt how to stick weld or arc weld.

A lot of the time, people simply just rush in “guns blazing” and when they have a go at it half a dozen times and they can’t do it, they give up. Listen, like I’ve said, stick welding might seem a bit daunting at first. But once you learn these basic steps on how to arc / stick weld the whole process will become a lot clearer to you.

How do I know? I’ve been there and done that. I know how hard it can be to learn how to stick weld for a person who has never welded before in their life. Often the first timer will make a few silly mistakes that can spoil their first time stick or arc welding experience.

Things like:

• How to strike an arc and keep it going. This is a big issue for anyone who is learning how to stick weld. How do I do it? Why does it keep sticking to the job?

• What size welding electrode should I use?

• What type of welding electrode should I use?

• What about welding safety. What should I be aware of when welding? What will hurt me and put me at risk of injury? If you are new to welding, you might not be aware of what to look out for.

• Which way do I move the electrode?

• What power setting should I set my machine at?

All these and many more questions are what the DIY’er or learner welder need to find out.
You need to.

1.  Learn how to stick weld and arc weld the right way the first time.

2. By following a set of easy to understand step by step instructions.

Which means…

3. By having a successful first time arc welding experience, you will never have a negative experience, therefore your ability to learn will not be ruined by a bad first time experience.

To find out how you can learn how to weld, quickly fast and easy.
 
Head on over to learn-how-to-weld.com – this is a brand new site that is being developed to help people like yourself learn how to weld.

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Learn what tig welding is from an expert in arc, tig and mig welding in this free DIY video. Expert: Malcolm MacDonald Bio: Malcolm MacDonald graduated from Connestoga College in 1968 from the Fitter Welding Program. He currently teaches a welding apprenticeship program. Filmmaker: Melissa Schenk

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Great tips on welding, FREE projects you can do at home. Simple, quick and easy lessons on how to MIG TIG and ARC weld.

Learn how to select a quality mig welding wire.
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Portable Shear Welders are a family of one of the world’s most compact shear welders available in semi-automatic and automatic working conditions. Portable Shear welders are ideally suited for use in roll form lines, coil mill, small tube mill, and stamping presses. The shear welders’ portable design allows the use of the machine for multiple line use regardless of strip flow, thus bringing down cost to half or one-third. There are a variety of Portable Shear Welders available for use in a variety of purposes.

Many of the latest Portable Shear Welder Machines are automated welding and cutting machines that have features such as pneumatic double blades for precise straight and effective cutting, automatically centralized pneumatic copper weld clamps for accurate and rapid function, precise motor and switch with stable and precise welding gun movement, inverter DC TIG welder to ensure top class welding quality.

The Portable Shear Welder Machines such as PSA 2000 are the most sought after shear welder because of their design and features. The PSA 2000 contains some standard features such as a tungsten height gauge that ensures a proper setting for the tungsten electrode and a proper weld fit up, with a built-in automatic gauge bar with patented split elevating backup bars. The PSA 2000 also includes properly sized air cylinders that are meant for providing maximum clamping force; as well as the solenoid operated clamping bar to eliminate the need for forward and reverses weld carriage motor relays and weld start limit switch. Some of the other features of PSA 2000 shear welders include a pneumatically powered three-blade shear for distortion free shearing with 2 die spring loaded stripper pads for straight cut, automatic relay to sense that welding arc is correctly established, and step-down transformer, and quick change backup bars.

Some other types of portable shear welders include the model VE-10 shear welder, which is a low cost shear welder used to join coils that are 10-inch wide by 0.075-inch thick for use in on stamping lines, roll form lines, and tube mills. The VE shear welder include features such as the automatic built in gauge bar, mounted work light, and automatic weld cycle. The VE-10 shear welders are also equipped with manual lever-arm shears and manual clamping for precision edge cutting and accurate positioning of thin gauge strips. Also included are the DC variable speed carriages and a 225-amp weld rectifier. Adjustable features make the portable shear welders easy to operate. Also included are reversible shear knives and weld backup bars.

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GO TO WWW.LOTSOFSHOPS.CO.UK FOR MORE INFORMATION. BUY ONE NOW ON eBay, SEARCH FOR “TAKE THE HASSLE OUT OF TIG WELDING” The Tungsten Ejector is a new type of back cap that greatly simplifies stick out length adjustment and electrode removal from a TIG torch. Fits Torch Sizes 17,18 & 26. IF THERE ARE ANY MANUFACTURERS OUT THERE THAT WOULD LIKE TO TAKE THIS PRODUCT ON PLEASE CONTACT ME.

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Your factory’s Coil Joining will improve in productivity when you use shear welders from Guild International Inc.

Plastic welding and spot welding – both are almost similar to each other. There is a difference noted. In plastic welding, heat is supplied through convection of the pincher tips, instead of conduction. The two plastic pieces are brought together. At the time of welding, a jet of hot air is liberated. This melts the parts to be joined along with the plastic filler rod. As the rod starts melting, it is forced into the joint and causes the fusion of the parts.

Plastic identification is the first point to be noted in order to choose a suitable plastic welding rod. A plastic welding rod or thermoplastic welding rod is of a constant cross-section shape. Using this, two plastic pieces can be joined. It may have a circular or triangular cross-section. Porosity of the plastic welding rod is an important factor. Air bubbles in the rod will be created due to its high porosity. This is responsible for decreasing the quality of the welding. So, the rods used must maintain zero porosity. Otherwise, they should be void less. Products like chemical tanks, water tanks, heat exchangers and plumbing fittings are manufactured by using the technique of plastic welding. By adopting this technique, money can be saved.

Using plastic welding, two plastics can be welded together. This type of weld is performed on children’s toys, lawn furniture, auto parts and other plastic equipments which are used daily – both for domestic and commercial purposes. In order to join the thermoplastics, when they are heated an under a particular pressure, this type of welding is employed. In normal practice, using filler material, the pieces are joined together. There are certain occasions wherein filler material can be avoided. Generally, plastic is not durable and has a shorter life span. Natural elements like cold weather, ultraviolet radiation from the sun or continuous exposure to chemicals causing contamination, will create damage to plastic products. Plastic can be subjected to damage if it is hit on a hard surface. But, as the price of new parts is high, it is preferred to repair the existing products.

As there are different types of plastics, we must know which one we are working with in order to find the exact welding material to be used. We must know the difference between thermoplastics and thermo sets because it is not possible to weld thermo sets. If you use the wrong welding rod for the plastic to be repaired, bonding will not take place. As materials like polyolefin’s have a lower surface energy, a special group of polyolefin adhesives has to be used. When you are repairing plastic, there are usually two types of defects – a crack or a broken part. In the case of a crack, there is a particular stress affecting the inside of the material. You have to repair the crack and you should not continue through the piece.

There are many types of plastic welding.

• Hot gas welding uses a welding gun which has electric heating elements. They produce heat f hot gas.
• Hot plastic welding uses a hot plate place between the two surfaces which are to be joined. In order to weld two pieces, ultrasonic welding uses a high frequency acoustic vibration. After subjecting them to high pressure, they are exposed to the vibrations until the weld is completed.
• Spin welding, where friction is employed to weld two cylindrical parts. These parts are rotated. The rotation stops at a particular point and the weld is completed.
• Vibration welding exposes the pieces to a frequency called amplitude. The two pieces are subjected to pressure due to which a friction is created which generates heat.

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See a demonstration of the push and pull technique in welding from an expert in arc, tig and mig welding in this free DIY video. Expert: Malcolm MacDonald Bio: Malcolm MacDonald graduated from Connestoga College in 1968 from the Fitter Welding Program. He currently teaches a welding apprenticeship program. Filmmaker: Melissa Schenk

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About Author

Brayan Peter is an expert author for Welder, Plasma Cutter,Plasma Cutting Machine, Tig Welding. He written many articles like Welders, Plasma Cutters, Welding Equipment, Arc Welder, MIG Welder, Welding Machines, Diesel Generators, Welding Helmets . For more information visit our site http://www.everlastgenerators.com. Contact him at weldings.info@gmail.com