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This process is called by many names and it basically is a welding process that uses an arc to heat metal that needs to be joined. The welder uses a continuous feed filler metal (a consumable) electrode and this is used on the work-piece. Similar to other types of welding a shielding must be used and this is usually a gas or mixture of gases.

This type of welding is also called short circuit transfer. In the MIG process, when the wire actually touches the metal to be connected, it lets go of the metal that does the welding. You want to avoid puddling and this is what helps make sure this doesn’t happen.

Also known as Welding , the MIG(GMAW) process uses a metal gun to provide this service instead of a torch so that you get a direct current going to the metal. You can use both constant current and alternating current systems to also produce this method of welding.

MIG Welding uses four ways to transfer metal. These are:

Globular — this method is difficult and used the least because it has a tendency to spatter because the gun will move to a high heat without warning. What will happen is that the welding surface will come out with flaws on it.  This method uses carbon dioxide so the electrode tends to produce a ball of melted metal that cases irregular shapes that are bigger than the electrode. They then drop and falls onto the piece you are working on which causes a spatter. Controlling this seems to be very difficult as you can probably imagine.

Short circuiting — this uses a smaller current than the globular method but it still uses carbon dioxide. If you have thinner metals to weld, this is one of the best methods as it can actually weld thinner metals together. This method is similar to the globular method because drops of melted metal from the electrode still forms, but it causes the electrode to short circuit instead of the drops falling on the work. This closes off the arc but comes back again because the surface tension pulls the metal goblet from the tip.

Spray — this was the first method for transfer used with Welding and used to weld aluminium and stainless steel. The difference with this process is that the electrode metal passes through an electric arc that is stable and goes all the way to the workplace. This stops spattering and you get a weld finish that is higher quality than in other methods. You also will watch as the current and voltage increases so you get small, vaporized steam droplets instead of large globules.

Pulse spray — this last one is a newer way of doing this type of welding that uses a continuous current that pulses and melts the filler wire. In each pulse a small droplet of metal will fall.

This also allows the welder to use a lower current. The welder gets a more stable arc and this stops spatter and the short circuiting process. Because this process is slower, argon gas is used instead of carbon dioxide as the shielding gas.

Welder World is a brand new community website for weldering to connect with one another and gather free information on welding. Come by WelderWorld to get your free Ebook on Welding Basics just for joining the Welding community for free. You will find Welding Forums, Welding Blogs, Welding Community Members and more just for signing up for free to join and then you can get your free Welding EBook on Welding Basics. Come be A part of our Welding Community.

TSince TIG(GTAW) welding can be difficult there is all kinds of information that will help you understand it better and how to do it more effectively. There are a few things that need to be in place before you start to weld using the TIG method.

What to prepare
The first thing you want to do is prepare the area where you are going to do your welding because you want it to be kept free of contamination. This means that you will have to really clean the area to make sure you have no grease, moisture or dust. You will also want to make sure there are no air drafts in this area because this could bring more problems.

The next thing to prepare is the metal that you are going to use for Welding . Using a stainless steel wire brush you can brush your joints so they are as clean as possible as to get the best weld possible.  Many welders will dedicate one brush to whatever metal they have so they don’t have to worry about cross contamination.

If have slag on any of the metal you can remove it with a file. Next, you will want to clean the base metal. The reason you want everything to be so clean is that if contaminated, the metal can either break down or make a bad connection. Of course, it depends on the metal which it will do, so cleaning everything can stop this from happening.

Beginning to weld
Its very important to have a shield gar because this shield gar will help so things don’t come in and contaminate your weld. Most welders will use Argon because it seems to work best with Welding . By using this gas, you are protecting the area from oxygen which can contaminate what you are doing.

If you are using thicker aluminum, you can also add helium to the Argon because it ionizes hotter than Argon and you will need the hotter temperature in these types of welds. If you need helium you can get these already premixed, this is available with your gas supplier.

A note about suppliers: they are not the same so you will want to make sure you use someone who is reputable. You will also want to make sure you have all the seals checked for leaks before you buy.

When you are checking for Welding leaks as you weld the best way is to use water and soap and a small acid type brush. These together will produce bubbles if there are any gas leaks. All you do is apply this solution of water and soap on the joint to and if you see air bubbles, you know you have a leak.

You will want to check all your supply hoses and gas connections to make sure there are no leaks before you get started. Make sure the torch insulators and your o-rights are fitting properly and that the seals are intact.

If you are like a lot of people and like to avoid problems before they start, the best thing to use is a gas lens on your torch so you can see easier.

Welder World is a brand new community website for weldering to connect with one another and gather free information on welding. Come by WelderWorld to get your free Ebook on Welding Basics just for joining the Welding community for free. You will find Welding Forums, Welding Blogs, Welding Community Members and more just for signing up for free to join and then you can get your free Welding EBook on Welding Basics. Come be A part of our Welding Community.

The acronym TIG stands for Tungsten Inert Gas Arc Welding and the acronym GTAW stands for Gas Tungsten Arc Welding this is the same process but it is referred to by these two different names.

In the situation you will be Welding using an electric arc that generates the heat. You then have a tungsten non-consumable electrode that then produces the weld you are attempting to make.

One of the things that have to happen in this type of welding is that the particular metal that you are welding has to be shielded from contamination in the atmosphere or you will get a poor weld. Hence, the area is blocked with inert gass and sometimes used with a filler metal where it is deemed necessary.

This type of welding only works when you have a constant flow across the arc with an ionized gas that is called plasma. Plasma also has metal vapours within it. You will usually use GTAW if you have to weld thin metals like stainless steel, aluminium, magnesium or copper allows. GTAW also gives the person who is operating the welding process more control of the weld.

The meaning of this or conclusion is that this is a stronger weld that when compared to other welds has a higher quality than other types of Welder . Many experts say that it is harder to learn, is complex and can be slower than other welding techniques.

Some welders like using a different kind of torch to produce plasma arc welding which is very much like this one but a little different. This type of welding will give a more focused welding arc, but usually this is done through automation.

How It Operates
The reason this welding process is the most complicated or difficult to master is because the welder has to use a smaller arc length; they have to be able to have a very steady hand. If they aren’t able to keep a distance between the electrode and the piece they are working on, the piece can become contaminated and there can be problems with the weld.

This is also a two handed process because you have to be able to hold the torch in one hand and feed a filler metal into the space that you are welding. You can see that this is a very intricate process and one that requires high skill.

There are a few types of TIG Welding that will not require this type of weld and the individual will not have to use filler material these types include: edge, corner and butt joints. These types of welds are called autogenous or fusion welds (Source: Wikipedia).

A welder who is highly skilled in this process is able to alternate between using the torch and then using the filler material in a pretty fast way.  As they do this the filler rod can be taken out as the electrode moves forward, and it doesn’t have to be taken out of the gas shied. For those who are trained and can perform the process well, this is a highly developed process.

GTAW can operate using several different currents: positive direct current, negative direct current or alternating current. This will all depend on how they set up the power supply in the beginning.

Welder World is a brand new community website for weldering to connect with one another and gather free information on welding. Visit our community today at WelderWorld to join for free and then get our free Basics of Welding EBook. There will be many welding forums, welding blogs, and welding members to share information with as well as a free ebok just for joining that is all about Weldiing Basics. Visit and become one of our Welding Community Members.

When you think about Welding you might think that there is only one type of welding. This is a common idea because most people only see the finished product. However, there are many different types of welding that you might find interesting.

Really in a very basic sense of the term, welding is a way of taking metals and joining them together and gain a tight bond in the process. There are a variety of bonds that are done depending on the types of welding you use.

Types of welding fit under categories as listed here:

Gas welding
This type of Learn Welding creates a flame from a burning gas and this creates the welding heat that is needed. You will see this in the following types of welding:

Propane torches — people use this when they want to sweat a joint or when they want to solder two pieces of metal together. This is one of the lowest heats and can be used for small things.

Oxyacetylene torch– this heat gets a bit hotter and many people say this is the most universal type of welding tool you can find. When you get an extremely hot flame, this is used. This type of torch will weld a variety of things as long as you have the right metals and tools for it. It is generally used when you want to cut, braze, weld or solder something that requires a higher heat. You have to be careful though because it is a type of heat that can be difficult to control and it can sometimes overheat the area.

Oxy-propane — this type of welding is used when you want to solder, braze or heat something. This is a cheaper form of both of the types of welding that was first listed.

Arc welding
This type of welding creates the heat through the use of an electric arc. The types of welding that are done through this type of welding include:

Basic AC & DC arc welders — when you are looking for a way to weld either heavy gauge steel or cast iron this is the type of welding to use. It uses rods that you guide along the place to be weld and these are made of flux coated steel or other materials.

MIG (Metal Inert Gas) — this is a very quick way of Learn Welding and some say it is easier to do than regular arch welding. It is done through the use of a DC arc and it uses filler metal that is used with a spool of thin wire. You use inert gas instead of flux. This is usually used with steal bodywork and is a good choice when you need to weld sheet metal.

Tungsten Inert Gas or TIG Welding — In TIG Welding you get an AC Arc that is made up of a very high frequency and then its combined with a tungsten electrode that is shielded by inert gas. This comes together to create a torch that is controllable. This is one of your better choices if you are welding very thin metals together. If you are trying to work with alloys such as stainless steel and aluminum then you are going to want to pick this as your choice.

Welder World is one of the newest welding websites that makes up a community for welders all over the world to connect with each other. Come by WelderWorld to get your free Ebook on Welding Basics just for joining the Welding community for free. You will Find lots of benefits to this welding community such as forums, blogs, and other community members plus you can get the free basic ebook on welding just for stopping by. Come be A part of our Welding Community.

If you are interesting in Learn Welding there are many different terms that you will want to familiarize yourself with in order to read magazines or books on the topic. Here is a list of common terms that are important to know in Welder : 

ACETYLENE — this is a gas that you will be working with to do Welder . It is a very flammable gas so you have to be careful with it. This gas is made up of carbon and hydrogen and it is used in the oxyacetylene type of welding process.

AIR-ACETYLENE — this is a flare that you can produce using low temperature. It is created when you burn acetylene with air and not oxygen.

AIR-CARBON ARC CUTTING (CAC-A) — this is a way of arc cutting where you melt metals through the heat of a carbon arc.

ALLOY — this is a mix that has metallic properties because it has at least one element that is metal, but it can have several other things in the mix as long as one is metal.

ALTERNATING CURRENT — a current that goes backward and forward at regular intervals (see DC Current).

BACK FIRE — this is the popping sound that you hear when you turn on the acetylene torch when you connect it with fire. It is created because the flame turns back into the tip for a moment and then comes back out of the torch as a flame.

BACKHAND WELDING — this is a special welding technique where you point the flame at the weld that is already completed.

BACKING STRIP — this is a strip of material that you will use when you need to keep metal that is melted at the bottom of the weld. You may also use this strip to add strength to the thermal load of a joint so you can stop the base of the metal from warping too much.

BASE METAL — this is what you call the metal that you are going to weld or that you are going to cut. If this is an alloy, it will be the metal that you have in the highest amount.

BRAZING — this is actually several welding processes. You will use this when you have a groove, fillet, lap or flange joint that you need to bond. This will require a nonferrous filler metal that has a melting point higher than 800 degrees F (427 degrees C) but less then your base metals.  Then, the filler metal will be distributed throughout the joint using capillary attraction.

DIRECT CURRENT (DC) — a current that only flows in one direction — forward.
- Flows in one direction and does not reverse its direction of flow.

DEFECT — there can be defects in your weld after you create it. The main defects you can find are things like cracks, porosity, places where the metal has been undercut, or where you have a slag inclusion.

EDGE JOINT — this is where you set two plates and put them together at a 90 degree angle with their outer edges.

Welder World is a brand new community website for weldering to connect with one another and gather free information on welding. Come by WelderWorld to get your free Ebook on Welding Basics just for joining the Welding community for free. You will find Welding Forums, Welding Blogs, Welding Community Members and more just for signing up for free to join and then you can get your free Welding EBook on Welding Basics. Come be A part of our Welding Community.

When you drive your car or look at a light fixture in the street or open your microwave, chances are that there is something in any of those items that has been welded. These products and others have been a part of the process of Welder for more years than you might imagine.

Welding actually started a very long time ago during the Middle Ages. Many artifacts have been found that date back to the Bronze Age. These have been small boxes that were welded together with what is called lap joints; no one is exactly sure what these were used for, but this was important to that time.

The Egyptians also made a variety of tools by welding pieces of iron together. Perhaps this is where Maxwell’s Hammer comes later? Who can say! Then came the rise of the Middle Ages and many people there were able to use blacksmithing for iron. As with any new invention or technology there were a lot of modifications to welding to get to what we know as welding today.

There were several significant inventions in the 1800s that influenced welding included here:

§ The invention of acetylene by an Englishman named Edmund Davy.
§ Gas welding and cutting became known and a way to cement pieces of iron together.
After the invention of the electric generator, Arc Lighting was one of the most popular parts of welding.
The types of welding called Arc and Resistance Welding Start to gain Popularity.
§ Nikolai N. America and Britain both gave Benardos a patent for welding around the late 1880’s.
§ C.L. Coffin receives an American patent for a arc welding process.

After the 1800s many more patents and inventions were made in order to create more ways of doing welding but one of the greatest needs would come much later during World War I because this process was needed to create arms. Because of the demand Welding firms became a staple of America and Europe because the war needed welding machines and electrodes to go with them.

During the war people really got a chance to look at how welding worked and it became a very popular way of work. So much so that in 1919 the first American Welding Society was begun. This nonprofit organization came directly out of through a group of men who called themselves  the Wartime Welding Committee of the Emergency Fleet Corporation (Source: Miller Welds).

The 1950s and 1960s were also a significant time for welding because a Welder process using CO2 was discovered and a variation of this form of welding that used inert gas became very popular in the 1960s because it produced a different type of arc.

There have been a number of improvements in the welding trade over these years and today the process has added two areas, friction and laser welding. These two have created a more specialized field and therefore more opportunities for learning.

One interesting point about laser welding is that those people who use it have found that is a tremendous heat source so it can actually weld both metal and non-metal objects.

Welder World is a brand new community website for weldering to connect with one another and gather free information on welding. Come by WelderWorld to get your free Ebook on Welding Basics just for joining the Welding community for free. You will find Welding Forums, Welding Blogs, Welding Community Members and more just for signing up for free to join and then you can get your free Welding EBook on Welding Basics. Visit and become one of our Welding Community Members.

 

paintless dent removal

Car dents are not my cup of tea by any means. They decrease from the value of the vehicle, whether it be monetarily or aesthetically. It was no wonder I was totally stressed out when I discovered the most latest dent in my car.  For one fact for certain, car dents—no matter how tiny, can make a car to look terrible and for another—it is not like I am rolling in money.

Car dent repair can be expensive and I wasn’t very sure that I could afford to get mine fixed, but I didn’t want to drive in the neighborhood in a dented car either.  Car dents have a way of multiplying. 

I was searching around for a auto repair shop and enquiring about quotes when I found Dent Masters.  Browsing through the website I was impressed by two things: 

1) that their dent removal method was explained so comprehensively on their  website and

2) that they got one of their people come down to my house and repair the car for me.  Who doesn’t love a business that comes to you instead of forcing you to go to them? 

Needless to say, I hired them straight away

Here is the way the dent removal technique works. Dent Masters employs a process called Paintless Dent Removal, or PDR. It is a technique whereby the dents are fixed without using tools that create the need for touch ups or refinishing. The technicians at Dent Master use specialized instruments to work at the dent until the dent is completely gone.

Paintless dent removal used to be limited to only small dents but now it can be remove bigger dents as well as including dents that would usually involve some major body work to repair. The technicians can even fix dents that are  caused by hailstones.

The Dent Master technician who came to my house was pretty  friendly and talked to me the entire way through the process and when he was done with his work (which did not take nearly as long as I thought it would) my car looked like it had never been dented at all! I had feared that there might be some residual damage—a couple of small scratches in the paint from the tools for example, but there was none!

After reading up a a bit more on Dent Masters, I realized that their company has existed for more than 30  years and it doesn’t surprise. Once you know how the PDR technique works, you wouldn’t thinking of taking your car back to a traditional car repair shop ever again. Rather, you’ll think of Dent Masters your first call.

 

Wikipedia defines Welder as “a fabrication process that joins materials, usually metals.” This is done by melting the part of the materials to be joined and adding some additional molten joining material. When the molten material cools, it forms a strong bond or joint.

Welding is the most widely practiced way of joining metals together due to the efficiency and economy of the process. It has been estimated that approximately 50% of the Gross National Product of the USA arises from activities that are in some for or another related, perhaps remotely, to Welding . As an example, farming may appear to have nothing to do with welding, but the equipment the framer uses to grow and harvest his crops will have used welding in their manufacturing process.

Until the advent of the 20th century, welding was confined to blacksmith shops where two pieces of metal were heated to very high temperatures in a forge and then hammered together until the joining occurred. This is what is called forge welding.

There was a point at which welding became much more easy and cost effective and that point was when we introduced electricity into the industrial world. If you talk to welders today, they can agree that there are really on 4 different types of welding techniques that are used today.

· The most basic for is Arc Welder where the parts to be joined together are brought into contact with strong electrical current and heated. The molten parts are then joined together to form a weld. Most would agree that this is the cheapest and least sophisticated form of welding.
· Gas Welding is generally used for repair work especially in the case hollow items like tubes and pipes. Hot gas is forced onto the surfaces to be welded. This procedure requires the parts to be subjected to less heat and is suitable for material that may be damaged by exposure to high temperature. For this reason it is used in the jewellery industry which has to work with soft metal with low melting points.
· Resistance Welding requires that an additional sheet of material is used to cover the pieces that are to be welded together. This provides great strength to a weld, but the process requires expensive equipment and also the use of additional material to encase the weld which makes it expensive and not suitable for all applications.
· Laser Welding is the most modern technology available. High intensity lasers can be tightly focused and produce controllable heat on the surfaces to be welded very quickly. This is perfect for material which can be damaged by prolonged exposure to extreme heat. Laser welding is very accurate and can be used to produce even the smallest of welds. However, because of the high capital cost involved in purchasing this equipment, the cost of welding is also high.

Although the perception of welding is that of a simple process of heating and joining, it is a high technology industry with huge amounts being spent of research and development to find stronger, more accurate and cheaper methods. The welding process plays a big role in metallurgy with a constant effort underway to find newer and more weld friendly alloys.

Welder World is a brand new community website for weldering to connect with one another and gather free information on welding. Come by WelderWorld to get your free Ebook on Welding Basics just for joining the Welding community for free. You will find Welding Forums, Welding Blogs, Welding Community Members and more just for signing up for free to join and then you can get your free Welding EBook on Welding Basics. Come be A part of our Welding Community.

Vauxhall’s little Corsa started life way back in 1983. Back then it was known as the Nova in the UK and was a replacement for the ageing Vauxhall Chevette. I remember the Chevette well as my friend’s Mum owned one and we persuaded her to let us borrow it the day after my friend passed his driving test on the fourth attempt (you could tell he was a natural behind the wheel). The car was a pretty revolting shade of purple and showed a few battle scars as my friend’s Mum wasn’t exactly an expert driver either. We didn’t care though as it was the perfect opportunity to tear up the L-plates that had adorned the car for what felt like an eternity. We were then ready to hit the streets with our puny cassette radio blaring. What we did manage to hit within about ten minutes was a car full of rather large Rastafarian gentlemen who were none too pleased with the damage that we had caused to their bright orange Fiat Super Mirafiori. It took a considerable amount of diplomacy to resolve the situation but luckily we managed to escape with our dignity, and our front teeth intact. A few years later I got a job with a company that had a Vauxhall Nova “Club” as a pool car and I must admit I did not enjoy driving that thing around at all. It was not actually so bad to drive but the car was white with yellow trim and had a yellow and white checked interior that made you feel like you were driving a deck chair. This was finished off with some tasteful white windscreen wipers. It was truly hideous and I was glad the day when somebody stole it and set it on fire which was a very popular past time back in the late eighties. I’m not sure who left the keys in it making it easier to steal though. I’m sure it couldn’t have been me. Vauxhall dropped the Nova name in 1993 and adopted the Corsa title as everyone was getting confused, as indeed they always have been between Vauxhall and Opel names over the years. The more rounder Corsa B model was quite a departure from the previous squarer Nova but proved to be just as popular although the A model British Nova still has a loyal following although they are becoming rare these days. A spin-off from The Corsa B was the Tigra but this had limited market appeal and so was dropped. The new millennium heralded the appearance of the Corsa C model which was a more technologically advanced version of what had gone before. Parent company GM named the new chassis design "Gamma" and it was developed to be used as a platform for other models.This has become a popular practise in the motor industry. “Ecotec” engines were carried over from the previous model due to their proven reliability although a few alterations were made in particular to the old DI diesel engine which made way for the improved CDTI version. The Corsa C was a huge success in the UK consistently selling in large numbers and achieved best selling car status as well as best sales in its class of “Supermini” throughout the early part of the decade. As a result of this success Vauxhall even resurrected the Tigra again in 2004 although it is now known as the “Twin Top”. 2006 saw the arrival of the Corsa D which has a new Gamma platform that was co-developed with Fiat and also features on the Grande Punto. The latest Corsa looks and feels like a bigger car and is more refined than its predecessors. Sales have been good to date with the Corsa still ranking in the top five of best selling small cars. A clever option on the Corsa is the “Flexfix” integrated bike rack which can be pulled out from the car’s rear bumper and incorporates the number plate together with the lights; which are often obscured by traditional bike carriers.

Now that gas is almost three dollars or more a gallon, people will do anything to see some gas mileage improvement when they drive long ways from home. However, it is starting to hurt just driving back and forth to work as well. When gas prices go up, people stay home more and that means a loss for the travel industry and hotels. Along the same lines, people have to pay more for services that rely on gas like air travel and bus travel. Until the prices go down, if they ever do, you have to do a few things to save money.

The problem with gas mileage improvement is that there is not much you can do to save money other than stay home or carpool. You can keep your engine in top shape, and make sure all filters are clean and clear, but the difference is not going to add up to much. Some suggest that turning off the air conditioning and rolling down the windows will help with gas mileage improvement, but some think that having the windows down creates more resistance to the wind, and that means more gas is needed to travel at the same speed as usual.

You might want to skip the small things you can do to see gas mileage improvement, and go for the larger things that will show and immediate affect in your wallet. This means that you have to find a new way to get to work. You should find someone to ride to work with, and you can take turns driving and/or paying for gas. If you can get more than two people in on the deal, you are going to save more money. You could also ride a bike to work, but that is not always possible or reasonable for everyone.

Some are saying that gas prices are not high enough to effect true gas mileage improvement. They say that prices must get higher in order for people to make real changes and to become less reliant on gas. I can see the logic behind this, but I don’t think that is something that is fair for most people. Until these high gas prices start to go down, if they ever do, you have to do some things to save money. It would only serve to hurt those who are not wealthy and destroy the economy.

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