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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Learning to mig weld

When you’re learning to mig weld you’re going to need to cover a few basic steps first, and they are:

1. Welding safety
2. Preparation
3. Machine set up
4. Installing mig wire
5. Tack welds
6. Torch postion

Like anything, safety is paramount.  You should always wear thick and heavy clothing such as overalls, a good strong pair of leather boots (preferably steel capped boots), welding gloves and a welding helmet.

When you mig weld the arc gives off ultraviolent and infrared light. This light is very damaging to your eyes and because of that you need to be protected from it with a welding helmet.

Not only is the welding arc bad for your eyes but it is very hot, so it’s a good idea to use a quality pair of leather welding gloves. The best ones that I have come across have been the ones that are Kevlar stitched.  And by the way, the day that you don’t put on your gloves will be the day that you pick up that hot bit of metal that you just welded and forgot about. Been there before.

Once you’re all geared up and ready to mig weld you need to prepare the surfaces.  Any traces of oil, paint, grease or heavy rust will have to be grinded off back to shiny metal.  This is very important in making a good weld bead.

The welding wire will need to be installed onto the machine and the correct size contact tip will need to be fitted, make sure that your welding nozzle is clean.  Also check that you’re using the correct size feed rollers for the wire.

Depending on the thickness of metal that you’re going to weld you’re either going to need more power or less power.  This will be a matter of trial and error. Once you have this sorted you’re going to make some tack welds first.

A tack weld is a small weld that is used to hold all the larger pieces of metal together.  You tack weld first so that you can check that all the parts are in the right places and everything is aligned and square.

Now once it is all tacked up and ready to go you can fully mig weld it up.  Finally when you’re learning to mig weld you need to be aware of your torch position.  If you are using a flux cord wire you will need to use the pull technique, which is like when you are stick welding and you drag backwards.  If you use a solid mig wire such as an ER70S-6 class wire with a shielding gas you can either push or pull.  Learning which style suits you best will slowly take time.

For more detailed information and photos check out this site here:  learning to mig weld

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This MIG Welding Video shows the demonstration of a push welding technique that is use when mig welding see here for more info on mig welding www.learn-how-to-weld.com When mig welding you can either push or pull the welding torch. The push technique is the most common. www.learn-how-to-we…

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Plasma cutters can cut steel and other metals of different thicknesses using a plasma torch. Plasma can also be used for plasma arc welding and other applications.

Plasma cutters are available in various shapes and sizes. All plasma cutters function on the same principle and are constructed around roughly the same design. Plasma cutters send pressurized gas, such as nitrogen, argon, or oxygen through a small channel. In the center of this channel, you’ll find a negatively charged electrode.

Plasma cutters can cut different shapes in metals properly. It is a very simple and economic technique. With the help of these cutters, the cutting work can be done accurately, in full speed and cut any type of metal in any shape. Due to low level skill, plasma cutters are threat to conventional metalworking tools. Plasma causes the energy to break apart the gas molecules and the atoms begin to split. Generally atoms have protons and neutrons in the nucleus, surrounded with electrons. But in case of plasma cutters, electrons separate from the nucleus. Once the energy of heat releases the electrons from the atom, the electrons begin to move around quickly. If you notice most of the electrons are negatively charged and leave behind positively charged nuclei, known as ions. Electrons crash with other electrons and ions, which releases vast amount of energy, creating plasma and unbelievable cutting power.

Plasma cutters are widely used in auto shops as well as by car manufacturers to customize and create chassis and frames. Even construction companies use plasma cutters in large-scale projects to cut and fabricate huge beams or metal-sheet goods. Locksmiths use plasma cutters to bore into safes and vaults when customers have been locked out.

One major benefit of plasma cutter is that the surface of the metal outside of the cutting area remains relatively cool; this prevents the warping and paint damage that can occur with other flame cutters. A thin heat affected zone also allows the use of templates for precise curved line cutting. Plasma cutters do well as gougers and can pierce metal quickly and accurately.

Plasma cutters are also used in CNC (computer numerically controlled) machinery. The idea behind CNC tables is to allow a computer to control the torch head making clean sharp cuts. Nowadays, CNC plasma equipment can cut thick material, which provides opportunity for complex welding seams on CNC welding equipment that is not possible otherwise. For cutting thinner material, plasma cutter is replaced by laser cutting, due to superior hole-cutting abilities. CNC plasma cutters are also used in HVAC industry. In the present scenario, there is more development in CNC plasma cutting Machinery. In the past, cutting machine was horizontal in shape, but due to improvement in technology, vertical CNC plasma cutting machines are available.

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Brayan Peter is an expert author for Welding Supply, Welding Equipments. He written many articles like Welders, Welding Machines, TIG Welding Equipment, welding helmets, Diesel Generators, Plasma Cutters. For more information visit our site http://www.everlastgenerators.com. Contact him at weldings.info@gmail.com

Need to discover how to mig weld?

Great! Mig welding is easy! Just ask anybody… You can teach a monkey to mig weld, Right?! All you need to know is pull the trigger and hold on… Oh yeah?

Come visit us right here for more Welder and Welding Info and get two Welding Ebooks Mig Welding Video. llow” target=”_blank” href=”http://www.welderworld.com/”>http://www.welderworld.com/

system number one to be told how to mig weld :
1. Buy machine
Get scrap metal

Learn fundamentals

four.
5. Practice
6. Write down what works and keep notes in pouch on machine.

Method number two to learn how to mig weld :
1. Attend a mig welding class at Technical College and use their machines, metal, gas, and other costly stuff that you would scrimp on if you needed to get it yourself. Pick the coaches brain for every welding tip you can get. Actually apply yourself and listen to every word he or she says. ( that is’s right, there are some good chick welding instructors out there )

two. If you need to …buy a machine.

What’s a good machine? I like Miller welding machines. Why? Many reasons : made in USA, service and support are great, great resale worth, parts are available, they are damn good machines. Now there’s always an exception to each rule so listen up!
And when I do, I will search eBay and craigslist for a Lincoln 115v mig welder.

if you are going to be welding mostly body panels on automobiles, or gas tanks for choppers, purchase a 115v machine. Either way, buy used from eBay or Craigslist if you can. Here’s why… First off, 115 volt mig machines are sort of like bowflex fitness machines, nobody wears them out, and used ones are nearly as good as new ones. You should buy a used Lincoln mig for 2 hundred $, use it for 4 years and sell it for 200 bucks. Sounds rather good doesn’t it? Same goes for the bigger 230v machines. Buy a used millermatic 180, 250, 251, or 252, for 600-800 greenbacks, use it for several years and if you want to sell it you can simply break even or maybe make a few bucks..or to keep things easy, just get a millermatic 250 and call it a day.

Come visit us right here for more Welder and Welding Info and get two Welding Ebooks Mig Welding Video. http://www.welderworld.com/
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Video For Mig Welding

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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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

Welding is a difficult job. It is very important to be well prepared before you start welding. Every welder that is being purchased comes with an instructional manual. This manufacturer’s book of precautions should be strictly adhered to. This will prevent accidents and harm to the welder himself. Mig welding is also referred to as feed welding. They are cost effective. They consume less time to get the job done. Other techniques swallow great amounts of time to get the same job done. For instance TIG or ARC welding consumes greater time than the time required to weld in Mig method. Even robots can be used to perform this type of welding.

When electrically charged wire is feeded into the welding arc then it is mig welding. This feed allows the heating up of the metal and thus created welds. Mig is commonly preferred these days. This is mainly due to the following reasons;

• The welding leads is highly simple to perform
• This type of welding demands less time when compared to other types of welding processes
• This procedure is highly affordable.
• Even robots can be utilized to get the mechanical job done.
• To obtain smooth finishes any shielding gas can be utilized. This is called as Gas Metal Arc Welding.

The gas is used to give good control over the splash of the molten collection of metal that is produced. For this welding type an assortment of gases can be selected.

Mig welder is capable of working with almost all kids of metals. Aluminum and mild steel are the most popular of them all. Mig welding is commonly done on these metals. You can discover a selection of machines that range in price tag, capability and dimension. In order for you to choose the proper welder for your exacting needs, the highest depth of the metal you will be working with have got to be determined. Once you put together that strength of mind, you will be capable to find a welder that will be competent to achieve up to your expectations.

You may fancy considering purchase of a mig welder that is one size larger than what you consider you will use. Since a moment will come in all probability in next to no time after purchase, when a venture will necessitate more power than you formerly determined was your maximum that you required. You might also be obligatory to acquire tips and liners to maintain your apparatus functioning professionally, and to lengthen the existence of your mig welding gun.

Welders from time to time try to hammer metal ends back into arrangement or to relax splash by using the tip of the gun as a hammer. This act is not worthwhile, as it will cause your mig welder to crack down more speedily.

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How to prevent and fix: birdnesting of the wire; burnback of the contact tip; poor gas coverage; exceeding the machine duty cycle; and thermal overload of the machine. www.MillerWelds.com

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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, Plasma Cutting Machines . 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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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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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