Posts Tagged ‘MIG welders’

Things to look into when you buy an expensive MIG welder

Tuesday, August 31st, 2010

If you notice quality of MIG welders have come down as most of them are manufactured in Eastern Europe and China. If you buy cheap MIG welders you have to compromise on functionality. The major advantage of buying a slightly more expensive welder is that wire feed control automatically varies according to power. Wire speed knob does not require fiddling when you change power settings. If you buy one of these you will never regret. In addition, if you buy a slightly expensive welder you can get a good sized feed motor and a quality wire feed mechanism. If you buy an expensive MIG welder which will cost somewhere around £200 to £500 you can avail more benefits in the long run. Generally expensive welders have two controls –one for power and the other for wire speed. Another control is spot timer.

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A brief insight into welding

Thursday, August 26th, 2010

Welding is a sculptural process where it deals with raw items such as metal and pipes and it is a process where welders deal with welding fumes and heat. From the decade, welding has developed a lot and new welding technologies with advanced welding equipment and welding systems have been developed. When you consider the history, there were no welding schools at that time, but today you can see lots of welding schools and modern welding products with advanced welding tools have been introduced. Manufacturing process needs welding and it fails if the welding industry is not developed and equipped well with proper welding products. For the welding industry to run successfully the industrialist needs proper welding accessories with appropriate welding safety and welding gears. Plasma cutter has made the strong foundation in welding industry and plasma cutter machine is also used for the process of plasma gouging process. It is a process that is used to remove the welded materials and also it find cracks, porosities in welding materials.

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Brief insight into hot air welder

Tuesday, August 24th, 2010

Hot air welder otherwise known as the hot gas welder is a kind of plastic welding technique which is almost similar to gas welding metals. However the specific technique is different in both the welding method. A hot air welder, which is a specially designed heat gun, produces a jet of hot air that softens both the parts to be joined and a plastic filler rod. It is important to note that all of the things to be welded must be of the same or a very similar plastic. However welding PVC to acrylic is an exception to this rule. For manufacturing smaller items like chemical tanks, water tanks, heat exchangers and plumbing fittings, the hot air welder is the most common fabrication technique being used.

If the welder is used to weld case of webs and films, a filler rod may not be used. Here two sheets of plastic would be heated using a hot gas or a heating element and then rolled together. This process is comparatively fast and can be accomplished continuously. There is another variation in the hot sir welding technique. It is called the freehand welding in which the jet of hot air from the welder is played on the weld area and the tip of the weld rod simultaneously. The rod is pushed into the joint and fuses to the parts as it softens. This process is slower compared to others. But the welding is versatile and can be used in almost any situation.

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MIG WELDING – An overview:

Friday, August 20th, 2010

MIG welding was originally developed in 1940 for welding aluminum and other metals. Main advantage of this welding is metal can be welded much faster than traditional welding techniques. It can weld softer metals like aluminum. When MIG welding was first developed, cost of inert gas made the process too expensive for welding steel. In addition, it also produces long continuous welds much faster than traditional welding methods. MIG welding produces a clean weld with very little splatter. MIG welding can be used with a wide variety of metals and alloys. This type of welding is commonly used in the automobile industry because of its ability to produce clean welds and it can weld metals quickly. People favor MIG welding as it is much faster and saves time. The operating cost is lower and it can adjust to limited electrode length and this allows for longer welds with fewer interruptions.

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Advantages of Mig welders:

Monday, August 2nd, 2010

Welding is known as the most difficult and unsafe job. There are many ways for welding metals. But welding should be done carefully otherwise these are harmful for the welders. The most popular welding is the mig welding. These are cost effective as well as consumes less time for welding metals. These welds are capable of welding all kind of metals. Mig welding is a process where electric charged is fed to the welding arc. There are few reason why mig welder are popular than other welders.

• These are very simple to perform even difficult task.

• This uses lesser time for welding any kind of metal than the other type of welding equipments.

• These are less expensive and can be afforded by any fabrication companies.

• These utilize any shielding gas for giving smooth finish.

• The speed of mig welder is faster than other welders. There is no need to change the rods and because of this it produces quality welding.

• These are also used for welding thin metals.

• The mig weld can be processed either manually or automatically.

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Uses and purpose of Metal Insert Gas welding:

Tuesday, June 8th, 2010

Generally welding machines are used for merging two or more materials together. The categories of welding machines are Arc welding, Mig welding, Spot welding, Tig welding and many more which are utilized for different aim. While welding you need lot of concentration and is a very hard job.

Mig welding is famous as feed welding. The full form of mig is metal insert gas. These are less expensive and consumes less time. Other welding machines consume lot of time and are more expensive than mig welding. The main reasons for using mig welding are:

• It is simple and gives high performance.
• The welding work is done in lesser time than other welding machines.
• It is capable of working with all kind of metals. For example aluminum and steel are commonly used.
• It is also known as gas metal arc welding because it can utilize any shielding gas for obtaining smooth finish.

The Mig welding are utilized by farmers, metal fabricator and house mechanics. Almost all farmers use this because it is affordable and saves time. The fabricators use this because they need to work on all metal.

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Highlights On Mig Welding

Tuesday, May 25th, 2010

Feed welding is the other popular name for Mig (Metal insert gas) welding. Other popular names for this weld technique in weld industry are like Gas Metal Arc Welding (GMAW or Metal Active Gas (MAG). It is one of the fastest and simplest techniques of weld.
The method of welding is semi-automatic or automatic. With the helping of welding gun wire electrode and a shielding gas is fed into it continuously. Apart from this Argon gas is also conceded in welding gun along with the wire electrode. This is done so as to achieve the desired results. This technique is mostly employed in high production and welding operations.

MIG welding operation can be carried on metals such as stainless steel, copper, carbon steel, and aluminum. All these metals can be weld in this process and moreover it can be performed in every position with the help of shielding gas, electrode, and welding conditions. This weld technique is popular in automobile industries. The gas which is fed in it acts as a shield agent protecting the weld zones from the contaminants of air borne. While performing this weld operation welder has to follow safety tips to protect him and others too.

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Tips for Newbie MIG Welders

Tuesday, April 27th, 2010

The first thing you need to keep in your mind before you take the MIG Welder in your hand is think safety first. Be sure that you wear all safety equipments and safety gears so that you don’t hurt yourself during the process.

If you are teaching yourself then the best way to know tips about welding is by reading the user’s manual of your MIG welding machine properly or even browsing for good MIG welding videos on net. It’s always better to know the way out of problems before you get a bad experience form them by reading article of experts.

Remember that you can do MIG welding for steel, stainless, as well as aluminum, but when it comes to aluminum, you will have to fix a special adapter for it. Always never forget to use nozzle dip or anti-spatter spray so that you can keep the gun nozzle from getting blocked with spatter. If you are a hobby welder, then it good to use 0.035 in diameter wire.

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Benefits and Types of Plasma Cutters

Tuesday, April 6th, 2010

The plasma cutter is fundamentally a simple and relatively easy to use tool to cut steel and other electrically conductive metals. The most important benefit of using a plasma cutter is that the surfaces of the metal outside the cutting area remains reasonably cool which prevents the distortion and paint damage that generally occur with other flame cutters. Yet another advantage is that the plasma manages to cut up to five times faster than traditional cutters without relying on highly flammable gases. The plasma cutters are actually capable of cutting metals rapidly and accurately.

Plasma cutters are usually available in three main types. The compact type is small and convenient but has high powers. The second type is branded as Low Amp plasma cutters that work at either 120 or 230V outlets. They are comparable to MIG welders and cuts stainless, carbon steel, aluminum and also remove spot welds. The third type known as the High Amp styles runs upwards of 85 amps. They are idyllic for the most intense, industrial situations like fabrication, maintenance, and other heavy-duty applications.

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Wire feed welding for the beginners

Thursday, March 11th, 2010

Are you a novice welding operator who is in constant dilemma to select the best welding machine for your task? Well, your confusions can be easily cleared if you get to know about the benefits of using a wire feed welder. Usually the beginners would tend to start their welding process with either stick welder or wire feed welder. However, the wire feed welders have some benefits over stick welders.

In wire feed welders, the wire is fed in a continuous process and this initiates higher productivity. But in stick welders, you need to change electrodes during welding. Secondly, the wire welding requires only lower skill levels and can be learnt quickly while in stick welding, the coordination of hand movements is essential. These reasons make the wire welding most appropriate for the first timers.

Once you select the wire welding process, next you have to go for the type of wire welding that you need. There are two types generally; the MIG welders and flux core welders. MIG welder is capable of welding a variety of metals including thinner ones. And flux core welder would be the best if you want to weld thick materials. In addition, portability and convenience would be more in flux core welders.

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