Posts Tagged ‘welder’

Choosing A Proper Electrode For Stick Welding

Wednesday, March 3rd, 2010

Learning welding is not an easy process without having interest on the art. You can easily learn the skill when you practice it with involvement and creative ideas. Same way learning to do stick welding also needs a lot of take practice and a little of patience to be trained in a way that will create fine welds.

Being one of the fundamental techniques of welding, stick welding is easily learnt by a lot of students and people who had just started as beginners who are learning welding for personal use.

The main thing anyone should remember before stating of with the welding lesson is to learn and analyze the uses and problems of different types of electrodes that are being used.

Choosing the right electrode can be one of the best ways to achieve fine welds as planned and required. Many are not aware about the size of the electrode that they must use. The point to be noted here is- The size of the electrode depends on the position you are welding within.

In this condition the welder will be struggling against the gravity if the weld is done upright (vertically). So, in this case a welder should wisely choose to do the weld with an electrode that is AWS classified as 7018 for the reason that it is low in powder content.

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Role of Welding Inspector in Welding Industry

Tuesday, February 2nd, 2010

The job of welding inspector comes with lot of responsibility and dedication in ensuring the quality and safety of welded work in various structures.

  • Quality of work done by the welders is tested based on the variables such as; the process, metal type and thickness, filler metal type, electrical parameters, joint design and welding position, noticing and documenting errors or faulty work, and recommending corrective measures.
  • The most important test which they conduct is ultrasonic nondestructive testing, where a check is performed on the safety of welds in structures and for any defects and cracks that can jeopardize the safety of the structure. And to conduct some of the necessary welding tests, such as checking for cracks and testing welding strength, an inspector may need to use flashlights and magnifying glasses.
  • They are also responsible to check whether a welding joint has any cold welds or any undercuts. Today many companies who are in the field of metal work are relying on welding inspector to successfully operate their business.
  • Their daily work involves preparing reports that document the work that has been done, the quality of that work and whether or not a welding job has been satisfactorily completed as per certain industrial guidelines that differ from one industry to another.
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Welding In Proper Ventilation

Wednesday, January 6th, 2010
  • Keep adequate ventilation space available when welding in confined areas.
  • Keep fan runs on always in welding room that can keep welding fumes away from the welder’s face.
  • When you weld, welding area should be at least 10,000 cubic feet for each welder.
  • The height of welding room or area is not less than 16 feet.
  • Welding area should not be blocked by partitions’ or structural barriers.
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Important welding terminology

Friday, December 11th, 2009

If you are aspiring to be a good welder then getting acquainted with its jargon related to its machines should be your primary step in your endeavor. As the welding profession is very technical the terms used while working on the machines are highly technical too.

Filler metal – metal added to fill a gap that exist when two piece of metal are fused together
Fluxes – used to get rid of oxides and other impurities from the base metal.

Weld joints – place at which 2 or more metals are fused.

Types - The types of weld joints are butt, corner, tee, lap and edge.
Parts – There are different terms that refer different parts of a weld joints. A root is that portion where the metals are at close contact with each other. A groove is the space provided between the edges. The bevel angle is that which is formed a flat plane and prepared edge.
Weld types – There are a number of weld types. They are bead, fillet, tack, slot, resistance, surfacing, groove and plug.

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Security while using a plasma cutting machine

Thursday, December 10th, 2009

Welding is well known to be a job of dangerous nature. A simple mistake would cost you as dear as your life as well. But proper arrangements and safety measures put together with utmost presence of mind of the welder will result in harmless welding.

- Ensure that you follow the manufacturer’s instruction manual rigorously. These manuals come along with the plasma cutting machine that you buy. Proper welding helmet, clothing, gloves etc should be worn throughout the welding process.
- The manual also holds information regarding the maintenance procedure that will keep the plasma cutting machine working well long after the warranty period has elapsed. Follow the methods that are specified to achieve the same.
- Also take care that you know the dos and don’ts of handling and applying the machine to welding processes.
- Before starting to weld check if the machine is in proper condition. Do not hit the torch on surfaces that are hard.

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Tips to get better arc welding

Monday, December 7th, 2009

Shielded Metal Arc Welding is otherwise known as stick or arc welding. There are 5 most important aspects that will influence your arc welding effectiveness. They are
- Current setting
- Length of arc
- Angle of electrode
- Manipulation of the electrode
- Speed of travel
The above listed 5 will help you improve your welds particularly if you are a newbie. If you are still thinking about which machine to buy then these below listed tips will help you decide if you should buy this welder or not.
- For an all purpose welding utility you can go in for Miller’s Thunderbolt. A DC powered machine is more advantageous than an AC powered one as it starts easily, produces less spatter and smooth arcs are possible too.
- Some brands produce machines that are capable of an amperage and duty cycle inversely proportional to each other.
This method does not demand strenuous cleaning routine.

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Arc stud welding process: An overview

Sunday, December 6th, 2009

The process of joining a metal fastener to a metal piece is, in simple terms the process of, arc stud welding. It is most often than not called as stud welding. The fastener is fused at the required place on the metal piece by heating the fastener to the commendable level with the help of an electric arc.

A stud gun is made use of in aiding the welder to hold the fastener at the right position. When the welder switches on the gun, the electrode heats up the fastener and thus it becomes capable to be fused to the work piece. This is a quick process that can be done in an average within 7 seconds.

There is a ceramic ferrule that adjoins the weld end of the stud welder is accountable for shielding the weld partly. Some prefer to make use of a shielding gas to serves as a protector of the weld which is highly optional.

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Some Dos and Don’ts For a Newbie

Monday, November 23rd, 2009

If you are a newbie to welding then blindly stick to these Dos and Don’ts.

Build up on your basics - You cannot be a great welder if you just hold a certification from a prestigious school. There is a lot more that you should acquire and learn to do with a welding machine be a good welder.

Be punctual – Work is worship. Treat your job with sincerity. Be on time.

Be confident – Confidence in you is a great way to perform any job. This is highly contagious and spreads across to everybody around you. Have confidence that you will be able to learn any technical intricacy.

Pay attention – Listen to experienced people if they have any advice for you. This might be related to welding machines. Their suggestions are very precious and you should not second them while they are talking.

Save wisely – It is a good to save at least a meager sum of money for any emergency in the future.

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Guidelines For A Safe Welding Environment

Friday, November 20th, 2009

The region adjoining a welder will be exposed to immense amounts of heat, smoke, light etc. It is vital to save the stuff contained in the area. To establish this enclosed space can be created to weld away with the help of partitions. The heat that is being let out by a welding process is capable of setting up a flammable object on fire. This may cause considerable damage to the welder, his environment and his equipment. It is best to avoid welding in those areas where flammable objects or gases are present.

The process itself can let out toxic fumes that can instantly affect the lungs of the welder. It is wise to set up an exhaust fan to keep the fumes at bay. Equipments should be maintained properly to keep it effective. Ensure that there is enough of air circulation in the area. This will bring sufficient breathable oxygen into the environment.

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Tips for Buying a Welding Helmet

Friday, November 6th, 2009

It is very vital to wear safety gears before you embark on your welding task. Safety gear to protect your eyes and face is called a welding helmet. There are a diverse range of helmets that are available in the market. There are automatic darkening ones that have come into the market. Helmet serves the purpose of protecting you from heat, radiations and bright light that are produced during a welding session. An auto darkening ones knows the strength of the light that is being produced during the activity and darkens its lens in order to protect your eyes from serious damage. Follow the three most important suggestions before buying a welding helmet.

  • Safety standard for helmets (welding) is ANSI Z87.1 – 2003. Make sure
    yours complies with it.
  • A delay control is capable of keeping the lens dark as long as you want them
    to be after the arc stops.
  • It should be as light as possible. A lighter one will produce less strain
    on your neck.
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