Posts Tagged ‘Arc Welding Safety’

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Basics of Arc Welding

Tuesday, April 5th, 2011

Welding is a very easy process to learn about. Arc welding and stick welding are one of the most basic and common welding techniques that are initially thought to every welding student. Arc welding can be thought in four basic steps.

Step1: Equip yourself with safety accessories before you enter the domain to weld. This is a must irrespective of what your experience in welding is. Even the most experienced, brilliant welder has to take care of safety precautions before he starts to weld.

Step2: Always work with clean metals. This is a preparatory stage of welding. Clean your work piece properly before you work upon it.

Step3: Check for the welding earth connection. Make sure it is good. You are mainly using electricity to carry out the task of welding and if your earth connection is not good enough, you are most likely to mess up the task. An area of potential problems can be eliminated

Step4: Strike the arc properly. This is one of the biggest concerns for any welder and there are only three possible ways to do it;

  • Flick up from an edge
  • Strike like a match/scratch it
  • Tap it straight down, then back up

Hold the rod as straight as possible.

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Safety while handling welding equipment

Monday, March 28th, 2011

When you are setting up a welding setup, you should make sure that you have safety equipment also ready. The most major accidents happen in welding because of the lack of safety equipment.  The process of welding is relatively simple but the risks that are associated with welding in terms of safety is high. There are always molten metal pieces flying around that could cause injuries. Also looking directly at the welding arc can lead to defects in vision as well as blindness. The following welding equipment is essential while welding.

Welding gloves- protects the hands from the arc as well as sparks. These gloves are also eclectically insulated to prevent from electrical shock.

Welding shield- protects the face from the arc and from sparks. Also the shield has a tinted glass attached through which the work is viewed. This prevents the damage to the eyes.

Insulated boots- This cuts of the body from acting as an earth so that the current does not flow.

A fire extinguisher should also be always kept at the work place to prevent any accidents.

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Wiring Requirements for Arc Welding

Tuesday, February 15th, 2011

The arc welder is one of the efficient elders which can be used to join various types of metals and it does not need extensive training for one to get the technique right. So if you would like to try this welding technique at your home to join two metals or if you are a welder you need to know some basic wiring requirements you need to have.

The arc welders would require connections with 240 volts alternating current; since they need such high power it’s necessary that they use wiring that would withstand it. The strong copper wires can be considered as an option. It’s also necessary that the circuit of your arc welder is well protected, as if its small there is chance for it to keep tripping and if it’s large the circuit may melt. Both cases may create hazards like fire accidents.

So it is appreciable if you read the manufacturing instructions and follow the guidelines properly in order to ensure smooth and safe welding process.

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Tips for arc welding

Wednesday, January 26th, 2011

Introduction:

In industries the arc welding playing the vital roll and it is more helpful in welding industries. Arc welding is used to make the machines in good shape and it works for more years depend upon the usage of the machine. Arc welding is a metallurgical procedure for two metals fusing by intense heat at the moment of fusion of the two metals.

Tips for arc welding basics for beginners:

Safety measures for arc welding:

In the initial stage for starting the welding works the welder should strictly follow some rules and regulations.

1.    Eyes and skin should be fully covered because the UV light is discharging from electrodes while welding.

2.    During arc welding use helmets compulsorily. To prevent the risks. The risks like fire accidents and shocks so the welders have to strictly follow the rules and regulations.

3.     And keep one bucket full of sand, welding helmets and gloves to start welding process.

Rules for arc welding:

Keep the welding machine on and at the moment of welding the welding machine should touch the fusion of the electrical circuit is fulfilled and the electric arc is produced. There are two methods of electric arc is there they are tap starting and scratch starting.

Rules for organizing the joints:

In arc welding while welding the impurities and dirt will be removed and it will modify the transmission. And the welders have to create joints for each arc welding it is more important for arc welding. This is more useful way for avoid some cases like cold joints and it is more helpful in creating the fusion more powerful.

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Technique used in Gas Metal Arc Welding:

Tuesday, January 25th, 2011

Gas Metal Arc Welding (GMAW) otherwise called the MIG welding is partly an automatic process where the welding arc is constantly fed with shielding gas and wire electrode. This makes the welding technique very easy and simple when compared to TIG welding where the welding torch and filler wire is held in both hands which making it a chaotic process. MIG welding is made easy with proper positioning of the welding gun by maintaining an appropriate stickout distance. Not to forget the gun’s orientation, it should be at an angle of 45 degrees and 90 degrees for a fillet welding and a flat surface welding respectively, with the travel angle being vertical. If this simple technique is followed actively we can get a good quality MIG welding done.

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Factors to Consider Before Buying a Welding Helmet

Friday, January 14th, 2011

In the welding profession, one of the essential safety equipment for all welders is the helmet. The welders are exposed to the harmful UV rays, infrared and also intense sparks. The human eyes are a very sensitive part of the human body and need to be taken care well. As the welders eyes are exposed to such harmful radiations they need to get some kind of protection which comes via a welding helmet.

In the market today, there are various types of welding helmets available ranging from the non branded cheapest basic helmet to the expensive welding helmet boasting of a variety of features. While initially you would find that there is no difference between the appearance of both and some of you could have even been using the low quality welding helmets for a long period without any health issues. All of you must be aware that the health complications like cataract take time to form themselves and you might experience them only after years.

So to be on the safer side, choose an expensive helmet, don’t compromise on cost. Try out the helmet and ensure that you will be comfortable working with it, opt for light weight helmets which are made of plastic. Today most of the welding helmets are made of plastic; quality is what matters as some of the plastic helmets might get melted when exposed to intense heat. So always prefer a reputed brand rather than the cheap no name. Also check out factors like durability and whether it has feature like auto darkening to protect the eye.

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What to consider while buying welding gloves:

Wednesday, January 5th, 2011

Welding gloves are safety tools that are used to protect hands. There are various factors available, based on which you can choose them and some of the factors are followings:

Functions of the welding gloves are to save you from harm and sparks that will be coming out from the metal that you are joining. They will also look after your hands and arms from the high heat of the machine and the chemicals that the metal might have been dealt with. They come in various types like: latex, cotton, leather, plastic and rubber. Most of them are thick and durable gloves and they are prepared particularly for fusing purposes.

Generally the size of the welding gloves will vary from large to extra large and small to medium. So you have to try them on your hand prior to buy in order to make sure that they fit on your hand. When you are trying them, remember that you have free hand movement so that you can ensure that they are comfortable while working. Before buying them you should also consider the kind of work that you will be doing so that it will be easy for you to make your purchase.

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INFORMATION ABOUT ARC WELDING:

Tuesday, January 4th, 2011

One of the most common and famous type of welding is arc welding. It is nothing but joining two pieces of metals together. The basic operation of welding is that, these electric machines generate enough electricity which produces immense heat of a very high temperature, which can melt any metal. This is what exactly happens in any welding process. So in arc welding what happens is, it produces electrical power which creates an arc between an electrode and a base substance. Then, similarly like normal welding the arc produces enough heat to melt the metal, which allows to fuse two metals. Welding is a risky job, whatever be the type of welding, it involves the same amount of risk, and so having necessary precautions is always essential. Welders should wear proper safety gears for themselves while welding. Even the place where welding is done should be protected by some type of inert gas, this is called shielding. It is a must for each and every welding depot to be shielded.

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Power supply essential for Arc Welding:

Monday, December 20th, 2010

Arc welding is one among the universally known procedures. It has got the name as “Arc Welding” because of the electrical arch that is created once the welding process is completed. The arc is the result of high temperature to the electrodes and the +ve & -ve charges that are produced from the heat. All ions are excited in a whirl at hasty pace that facilitates to produce the electrical arc or the beam, which often comes from the torch.

Now let us see how it is the best power source. This is the core of every arc welding process because it’s the welding power supply source. In general, the power source has the alternating current (AC) that will rotate in its direction. Consequently the alternating current will move forward with its energy after that it reverses and maintains this irregular system right through the entire work.

On the other hand when it has direct current or DC, supply will persist to flow frontward and continue in the similar way until the work is done. The entire process is relied on the kind of electrodes you employ and the nature of supply material used.

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Know More about Electric Arc Welding:

Tuesday, December 14th, 2010

A low electrical energy, high amp power source is basically an electric arch welder, which has a wire linked to the hand piece and a different wire bond to the project itself. The hand piece clutches an electrode which produces a high temperature arch by the side of the electrode tip at the time while struck adjacent to the work.

It requires an adequate temperature to dissolve the tip of the electrode that pushes into the bond joint making a blob as it cools down. A fluctuation is important and the temperature makes the flux to create a gas defend the region of the weld area.

At the time when electrode is applied, the worker adjusts the location of the hand piece for both to track the joint and to maintain a continuous arch gap. Modifications on the welder itself provide options for the operator to utilize a range of fusing rods relying on the environment and symphony of the bond that is essential. Most often electric arch welders are movable tools allowing the connection to be brought out in the field as required. This is utilized for farm functions, pipelines, mining and other outside conditions.

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