Posts Tagged ‘welding machine’

Know more about flux cored welding:

Tuesday, August 3rd, 2010

Another type of welding is the flux cored welding. This process is generally seen either in semi automatic or automatic welding. Here the welder has to continuously feed consumable electrode at constant voltage which should contain flux. You can also use shielding gas which will protect from contamination. Since this process is known of speed these are mainly used in construction. These are light weight and portable.

If you are using consumable electrode for filler metals then you can use these from any position. These can weld even in windy condition. These can weld on all kind of steel. There are two types of flux cored welding where one uses shielding gas and the other doesn’t use shielding gas. These are mainly for thin materials. You don’t have to clean the metal when welding is done with the flux cored weld. The welder here doesn’t need high skill for using this welding. These are also used by the farmers and home makers for welding small things.

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Posted in Spot Welding | 1 Comment »

Benefits of Gas Welding Machines

Wednesday, November 25th, 2009

With the use of a heat source if you are about to make two metals fuse then it is called as welding. From time immemorial welding has been in practice in someway or the other. Later to accomplish this electricity or gas has been used to produce heat. But gas is the first type of heat generator that has been used well before electricity. Even till this date gas welding is popularly used. It has the capability to heat, braze, solder, cut and weld. These activities can be performed with just a single source of heat. Here are some of its well known benefits;

  • They are cheap to invest and to maintain.
  • It is capable of more than its counterpart.
  • It is a great source for melting and bending too.
  • It is the most popular source of generating heat.
  • It is used by almost every professional shop. This is due to its inexpensive and wide range of applications.
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Posted in Gas Welding, Welders | 1 Comment »

Types of Welding Machines

Thursday, October 15th, 2009

The purpose of welding is to join or bond metal parts permanently. Welding is performed in many fields for varied applications. The process involves heating of metal pieces and fusing them permanently. Welding machines are of following types;

Arc Welding Machine

Arc welders apply intense heat to melt metal and join them together. Further sown arc welding machine can be of various types such as, carbon, gas metal, gas tungsten, shielded metal, flux cored, orbital / tube, plasma, stud an submerged arc.

Fusion Welding Machines

This process utilizes a filler material to complete the weld. Their types are electron beam, hot plate, plastic, laser, oxyfuel gas, thermite/exothermic, inertia and electro slag welding machine.

Plasma Cutting Machine

This process involves the usage of high speed jet of ionized gas which aid in welding.

Resistance Welding Machine

Their types are spot, inverter, projection, seam, flash, upset, percussion and high frequency resistance welder.

Solid State Welding Machines

There are no fillers used in this process. Their types are cold, diffusion, explosion, forge, hot pressure, roll, ultrasonic, and friction welding
machine.

Other Welding Machines

Machines that are used in other welding processes are induction and thyristorised welding machine.

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Posted in Welders | 8 Comments »

Benefits of Using MIG Welders

Wednesday, October 14th, 2009

Whether it’s for residential or commercial usage MIG is a great process. It is the easiest process to learn and practice. Most people learn to perform MIG welding in a matter of few hours. An experienced. MIG welder is preferred to operate automatic MIG welding. At home MIG welder is easy to use. It is very popular because it can be learnt with no trouble. Also, MIG welder is lot cheaper than other welding machines. Now, for some of the advantages of using a MIG welder;

  • High on productivity as it can work without any disturbance. Please avoid getting distracted. As the advantage may itself become a disadvantage for you.
  • Very easy to learn
  • Produces great welds
  • No cleanup required
  • Welds mild, stainless steel and aluminum
  • Any position welding is possible

Do not underestimate any welding machine. They are dangerous. So follow the instructions manual. Please make sure that you are fully protected before you start welding.

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Guidelines To Use The Various Types Of Welding Machines

Thursday, October 8th, 2009

Welding machines are used to blend metals. It is a difficult and hazardous job. It is very essential to know the type of welding machine that you are about to work on and follow the safety measures accordingly. Follow the below listed steps to effectively use your welding machine;

  • Select the welding machine that best suits your needs.
  • When there is no electricity go in for a machine that is motor-generated.
  • For light commercial, shop or garage welding it is safe to the machine that has an alternating current transformer. They are cheap
    and lightweight.
  • Rectifier welding machines are best when used for work that required both direct and alternating current. There is a flip switch
    that allows the user to choose the appropriate current for the task.
  • Electrode negative welding machines can be used when your task involves welding stainless steel or carbon. They are commonly used in construction work.

Most importantly, wear the right type of protective gear as specified in the
manufacturer’s manual. Be a safe welder.

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What is a DC Welder?

Tuesday, February 24th, 2009

The DC welder is perfect anytime you may need high performance and durability, in a welder. This welder equipment comes equipped with a great arc welding power supply , cables and plug. These machines come with the ability to change from AC (alternate)/DC (direct) power output options. This is great depending on the type of power options available and your ‘be ready’ status for working.

They can be installed and ready to go within minutes due to their compactness in their size and easy to handle capabilities. It is easy to store because its compact in size. But, when it comes to performance it is not tiny in its feat, the DC welder will deliver a strong powerful stream of power to its weld.

This machinery is flexible in its welding output to aid your stick welding capabilities. This versatility is an awesome feature to have when your job may differ from the largest to smallest and you can rely on a steady stream of power for all ranges. Each weld job may or may not need the same source material or even the same electrode types so it is great to have a machine that is ready to go no matter the job.

The DC welder can deliver a smooth arc for your weld needs. The electric arc is unique for each job and will differ on the size and type of the electrodes. The arc is a major part of the welding procedure and will have an effect on the quality of the work or performance of the job. The electricity flows from the power supply which is the workhorse for the task. The power supply flows in the desired current to the electrode and the electrodes actual disintegrate and protect the weld surface, while they expel the shielding gas. The shielding gas vaporizes as it forms a shield around the meld surface to protect from damage and create a quality finish. The finish is the sought after manufactured good and should be of a great quality depending on the craftsmanship of the worker and the welding equipment.

There are the AC/DC welding machines that will allow the versatility between the types of arc needed. The DC welding arc can be called the arc type you would need when you are in need of a more stable flow. The AC welding switch would be the choice if you have a larger electrode and need faster travel speed rates, as well.

This machine can deliver when it comes to the average needs of any stick welding job or task. Use a DC welder when you have welding jobs that could vary in size and types, because I am sure it will meet the challenge.

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Posted in Welders | 2 Comments »

What does it take to be a Welder?

Sunday, February 22nd, 2009

If there are metal materials in need of being melted or fused together to create a product or structure, it would take a welder with skills in welding to get that job done. They are workers in the manufacturing business who use heat to join metal pieces together to become one. It would take a Welding professional to join beams at their seams in order for those parts to eventually become a building or structure.

The welder is accustomed to wearing eye goggles and welding equipment to perform their job. There are other pieces of protective equipment most welders would wear such as:

•    Leather gloves,
•    Long sleeve jackets, and
•    They must wear safety shoes too.

This equipment aids them in protecting their bodies while they perform their work. Their work environment is considered to be hazardous and they must work carefully. As a welder, you might even experience working in the midst of a welding curtain, used to protect anyone not wearing goggles or onlookers.

Their equipment, for example the goggles are used to protect their eyes from the UV rays caused by the open flame and the metal it burns. This flame can burn the retinas and damage the corneas of any welder not careful enough to follow all safety procedures.

Safety is of the highest concern and it takes a trained professional to know the seriousness of that fact and adhere to them. Which is why welders with formal training are sought out because they have some form of training on what it takes to do be a welder.

If you are looking for formal training to on how become a welder, you might find that there are classes near you in one or more of the following institutions:

•    high schools,
•    community colleges,
•    vocational institutes,
•    the U.S. Armed forces.

If you have taken a course in Welding, you might want to get certified in some skills more specific to advance your career. You might want to check with The American Welding Society to get one or more certificates to specialize in. There are some Welders that are able to be promoted within the ranks of the company they work for due to strengthening their skills and after obtaining vast experience.

In the manufacturing industry there is growth for welders. There is a need for those trained as a Welder, there are employers seeking their unique skills. Welders can look for work in such fields as: the utilities, construction, or manufacturing industries. There will most times be a demand for someone knowledgeable of the welding process or someone who is able to inspect for quality.

If Welding is a field that you are interested in and want to check on the overall job outlook for the future, it is one that is positive. The Welder profession cannot be totally replaced by automation, although there are some jobs that have been shifted because of the use of mechanical automation equipment.

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The Basics of the TIG Welder equipment

Tuesday, February 17th, 2009

This article discusses the basics of the Tungsten Inert Gas welding process or more commonly known as the TIG welding process and its equipment. The TIG welding procedure is named by its Tungsten electrode, the name Tungsten is derived from the name of the steel gray metal found in many ores. This metal is durable in that is said to have the highest melting point.

The TIG method of welding is known for how it holds the unique ability to form heat that creates an arc of electricity between the tungsten electrode and the material being welded. Normally, the filler metal is fed into the molten metal pool, while TIG welding.

This method of welding is usually a process that uses an air or water cooled torch that will keep the tungsten electrode or rod in place while connected to the TIG Welder.

The TIG welder equipment comes with four basic components:

•    The Welding torch is hand held by the welder.
•    The power supply delivers current to the torch.
•    The electrode delivers the current from the torch to the point of contact on the metal.
•    The shielding gas is used to guard the material from damage from gases and stability.

The Welding torch is connected to the power supply unit by hoses that carry not only the power, but the shielding gas sources and some even deliver the torch water. The torch is usually heat resistant with material to insulate the device from heat and electricity, along with protecting the welder.

The power supply is the heart of the job and is the most heavily depended on part. There are some TIG welder power supply units that are equipped with alternating current charges. The alternating power surges are great in that if they were constant it might cause the tungsten electrode to overheat.

The electrode is made of a tungsten alloy or metal and has been termed non consumable because it can withstand very high heat. The term non consumable means that it wont be destroyed during the process, but can experience some burn off.

The shielding gas or gases are protectors of the metal, from such gases as nitrogen and oxygen. These gases will cause defects in the product or material being welded by the welder. This gas usually transfers heat to the metal by the electrode and thus creates the arc of electricity.

The TIG welding, as with all welding procedures, must be used keeping all safety precautions in mind. The protective gear needed for most welding procedures such as: the goggles, protective leather gloves and outerwear, and welding helmet are essential to anyone using the equipment.

If you are in the market for any TIG welding equipment, look for those that are approved by Engineers, look for brands that have the GTAW in quality standards.

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TOP 3 - Welding equipment

Sunday, February 15th, 2009

The job of a welder can be dangerous, unless there is strict adherence to all safety measures. Although the task at hand is hazardous, there are five important pieces of Welding equipment every welder must have. The five important pieces of equipment are:

•    The power supply
•    The electrodes
•    The source material

There are many types of welding procedures and welding sources or materials. But, they all have one thing in common. Each welding process must have one of the three pieces of equipment mentioned above. Each welding process large or small will not be able to be performed if they are missing either one of those parts.

It is a must to to have a steady supply of power, this electricity is what will give the heat to the metal. This heat will cause the metal to melt and form what is called a weld. The weld will create the manufactured good or goods. The power supply can be one that is portable or fixed. They can have either AC (alternate)/DC (direct) power output source.  The power supply of any welding equipment can come with one of three backup resources such as:

•    A gas backup source option
•    A diesel backup as an option
•    Or even a rechargeable battery pack

An electrode is used to carry current to the source material or manufactured part. The electrodes are unique for each job and there are many to choose from. There are some made of non consumable material or consumable, meaning the will or will not disintegrate will transferring the heat to the source material. They are important in the welding process not only for their heat transferability but also they have coatings that burn creating gases that shield the material being worked on. This process is called a shielding gas and they protect the metal from the air. Air will cause damage to the metal or contaminate the surface, yielding defects in the manufactured good or goods.

The source material or manufactured good can be anything from parts of an automobile to a steel pan or bucket. The source material can exist in a miners cave or an large industrial building. You may even find some welders using equipment underwater, not to mention even on aerospace equipment. In my opinion, the welders and their welding equipment aren’t escaping many of our industries worldwide.

There are welders needed and for the long haul, even in spite of automation of welding making its presence, in the industry. There are some tasks only a skilled welder can perform. They are the welders who use high powered welding equipment everyday to do repairs or even to create structures like buildings. The welders profession may be one of the most viable jobs in our society.

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Posted in Welders | 3 Comments »

How To Buy a Plasma Cutter

Tuesday, January 27th, 2009

Many people go to the store for a welding machine and they know exactly what to buy. When you are going to buy a plasma cutter there are more issues to take into consideration because of the way it is made.

When you are looking for a plasma cutter the first thing to consider is what you will be cutting most of the time. Plasma cutters are generally rated by how thick the material is that you will be cutting so it is important to make sure that you do not have a machine that will undercut the metal you are working with most of the time.

As you look at plasma cutters study each make and model to see what they do and how they do it. You will choose one that will fit your needs for what you want to do. One way to do research on this is to go to online forums that discuss this topic. People will talk about what they bought, what it does, why it works for them and more.

What Brand To Buy

This is not something that can be answered for you because you will have to decide based on what you need. There are four major brands: Miller, Hobart, Firepower and Hypertherm. Each of these is a good brand but they all have different prices for lots of different plasma cutters. You will need to shop around and comparison shop before you buy.

The Power of the Output

Each plasma cutter will have a certain amount of power it puts out depending on the thickness and the type of material that you are going to cut. The thickness will also tell you the right sized nozzle opening that you will need and it will determine the type of gas, the amount and the air that you will need to use it.

The way to figure this out is to think about the type of metal you will be working with most often and then check the cutting capacity that the machine has that you want to buy. Also, check the cutting speed because some plasma cutters are faster than others which cuts down on the time it takes you to produce your work.

Finally check the amperage that you will need. Some plasma cutters are able to use multiple currents and this may be important to your needs.

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Posted in Plasma Cutters | 3 Comments »