Posts Tagged ‘Welders’

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An Insight on Gas welding:

Wednesday, September 1st, 2010

In gas welding, some hazards happen from fire and explosion. Explosion or fire can happen while using gas welding due to certain reasons:

1. If welder does not handle lighted blow pipe carefully, it can cause burns to him or other workers.

2. If blowpipe is used too close to combustible material.

3. Gas leakage from hoses, valves or other equipments.

4. Misuse of oxygen.

5. Backfires and flashbacks.

Lighted blowpipes are dangerous equipment which can burn the user badly. It can also injure other people and set flammable materials on fire. By following these precautionary steps you can prevent injury

• Always work in a safe location which is away from other people.

• Before starting your work, do wear welding helmet, protective clothes and gauntlets to protect yourself from fire.

• Clamp the work piece, do not hold it by hand.

• Once your work is over, switch off the blowpipe.

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How to weld aluminum in a safe way:

Monday, August 30th, 2010

Aluminum can be welded either with a wire feed welder or stick welding. To avoid injury, use these safety measures:

• Wear a protective welding hood while welding aluminum.

• It is important that you wear safety equipments like thick leather welding gloves, long jeans and boots and welding jacket to protect yourself against sparks and heat caused by welding.

• After welding work is over for the day, clean the work area as it can reduce the risk of fire caused by sparks.

• Always route the welding leads from welder to steel so that nobody can trip on them.

• Before a technician starts the aluminum welding process, ensure that all the cords and welding leads are free from defects.

• After welding work is over, turn off the welder.

• Clean up all the tools and materials used in this project so they don’t become a hazard.

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An introduction to mig welding process

Friday, August 27th, 2010

Mig welding is also called as gas metal arc or wire feed welding and it comes under the category of consumable electrode methods. It is a semi automatic welding process that uses a direct current power source with constant voltage. It takes less time than other welding process and it is less expensive technique that uses shielding gases to create smoothly finished welds. A MIG welder can work with nearly all kinds of metals and Mild steels and aluminum are the popular metals used in this welding process. Its versatility speed and ease of adapting to robotic automation made mig welding as a most common industrial welding process. Mig welding technology has four metal transfer modes such as globular, short-circuiting, spray and pulsed-spray that differ from each other in their properties. Proper precautionary measures should be taken while doing the mig welding process because it deals with welding fumes and welding gears. A mig welder should wear welding safety gears such as welding helmet, welding gloves and welding goggles for the protection.

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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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Know about different types of welder

Wednesday, August 25th, 2010

A welder is a machine or equipment that the welder uses to make the weld and there are different types of welders that are used for different purposes. Each type of welding needs different welder products. Mig welding needs mig welders that do the appropriate mig welding services and when you buy the mig welder you can look for used mig welder, reconditioned welder and cheap mig welders and to understand better about these products it is best to have a look on mig welder reviews from internet.

When you weld aluminum or metal it is better to have a mig welding aluminum welder or metal welder or steel welder and use the portable arc welder that suits the type of metals. Plasma cutting process needs plasma welder and proper welder supply for the smooth functioning of its process. Similarly there are other types of welders such as ac welder, dc welder, high frequency welder, on board welder, spot welder, tig welder, resistance welder, wire feed welders and more. Welding projects need proper welding tools, welding products and welding equipment for its better operation.

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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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A pathway to welding industry

Monday, August 23rd, 2010

Everyone should know that, most of the metals and the historical monuments are made using the welding process. Welding process exists from ancient times, but now the change is many new types of welding equipment and welding machines have come. The welding service is needed in many industries and welders are in demand now. When any new welding project is signed, the welding industry needs proper welding supplies and tools. The welders should be aware of the latest welding technology and should be equipped with welding accessories and tools. Welding is a process that deals with welding fumes and the welders should be aware of welding safety measures and should have welding gears such as welding helmets, welding gloves and more. The welding industry should be equipped with modern tools such as welding electrodes, welding torches, welding consumables and welding guns and should follow the proper welding system with appropriate welding technology.

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Different types of welding:

Thursday, August 19th, 2010

Welding is nothing but a process of joining two metals. Welding can be done through gas flame, electric arc or laser.

MIG (Metal Inert Gas) welding is an automatic or semi automatic process where wire is connected to a source of direct current acts as an electrode joins two pieces of metal as it passes continuously through a welding gun. One major advantage is that metal can weld quickly than traditional welding. Other advantages are – since shielding gas protects the welding arc, MIG welding produces a clean weld with very little splatter. MIG welding can be used with a wide variety of metals and alloys.

Tungsten inert gas (TIG) welding is the process of blending together reactive metals such as magnesium and aluminum. TIG welding is commonly used for both high quality and manual welding. There are different types of joint used with TIG welding like butt joint, lap joint, corner joint and t-joint.

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How to stick weld?

Wednesday, August 18th, 2010

Stick welding is known as manual metal arc welding or shield metal arc welding. This is very popular form of arc welding. Select the steel to weld. Steel should be in plain carbon steel with less than 1 percent carbon, less than 0.1 percent silicon and 0.035 percent sulfur. Find the joint position based on the thickness of the metal. This angle should be lower for thicker metal with a 45 to 75 degree angle being best for 10 to 18 gauge steel. Make sure that joint geometry is correct. Width should be consistent for the entire joint. Clean the joint before welding to attain the best travel speed. Use the largest electrode that is practical. This is generally 3/16 inch for overhead and vertical welding while 5/32 inch is usually the maximum size for low hydrogen applications.

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How to choose a welding helmet?

Tuesday, August 17th, 2010

Our vision is a blessing. In order to protect this blessing we should use protective eyewear while welding. While welding, protective eyewear is a welding helmet. Helmet will not only protect your eye from getting burnt from flying sparks, but also retinas from being burned by the ultraviolet light that welding produces. Choosing the right helmet to protect your eyes is important and so here are a few factors that can help you.

• While welding, wear helmet so that you can protect your eyes from sparks and other hazards. A welding is worn to shield the eyes from devastating effects of harmful radiation. To choose the right welding helmet you should what type of radiation is emitted from the welder that you are using, and then find out the correct lens for that. Welders can emit ultraviolet rays, infrared rays and high-density visible light. All these rays can cause temporary discomfort and in the long run can cause serious damage or blindness to your eyes. Different types of welders produce different types of radiation, so keep this in mind when choosing a helmet.

• If you’re performing a single type of welding process, then it is better to buy a fixed shade helmet. But if you are doing different types of welding then you should buy a variable shade helmet.

• Weight of the helmet is another factor to consider. There should be a balance between comfort and durability. Due to modern manufacturing techniques, it is possible to have a durable welding helmet that doesn’t feel like a neck breaker. Check to see if the size band can be adjusted to a size that fits you. Try the helmet on and wear it for a while to get a feel for how it will be to work with it on.

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