Posts Tagged ‘aluminum welders’

Caution While welding Fuel Tanks

Friday, November 4th, 2011

Welding is a process wherein two or more metal pieces are joined together in heavy manufacturing. A molten solution is used to form the bond between these metal pieces and this particular molten solution is generated from tremendous amount of heat and light energy. It is quite dangerous when we get exposed to such intense energy transfer and we ought to practice caution at all cost. However, we our steps regarding caution have to be more vigilant especially when we are welding fuel tanks. There is a possibility of igniting fuel vapors and if MIG or TIG Welding processes are employed, the argon gas could suffocate the welder.

  1. Before welding, the welder should ensure that the battery is disconnected and the ignition mode is in switched off mode.
  2. Completely drain the fuel tank into an approved gas container.
  3. Once step 2 is done, remove the tank from the vehicle and see to that proper ventilation equipment is adopted while you start to weld the tank.
  4. After removing gas tank from vehicle, wash the tank several times with warm and soapy water. Do not dispose off the water and see to that it is properly stored in flammable container.
  5. Start evacuation of fuel fumes using an air hose for more than an hour until you are guaranteed that all fumes are evacuated and there is no longer detection of fuel fumes.
  6. Follow all safety standards before you start to weld and stick to the contract specification while performing the welding. After welding it, allow the tank to cool down for a desired temperature as per the specifications.

Once the tank has reached desired temperature, test for the integrity and quality of weld. Test for detection of any leaks which can be done by placing a small amount of fuel in the tank. If it is leak free, reattach it to the vehicle.

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Learning on the fast track: Budget money for practice material

Monday, October 24th, 2011

As a member of the technical support team at Everlast, it seems that every day or so I get a call from a guy learning to weld, just having bought one of our units. Typically he will be desperately looking for some advice on some new way to be an instant welder, after reading all the info he can scarf up and watching videos on line until he feels he should be able to weld competently upon the first arc strike. Of course, upon getting less than spectacular results, I receive a call.

One of the first things I try to assess is the metal that they are working with. More often than not, I hear from them that they have a couple of pieces of rebar, some old bed rails or some old exhaust tubing they got from a muffler shop.  To say the least, most times it’s less than less than ideal material. As a professional, it makes me cringe, but I do understand the dilemma. You scrap to save money for a newwelder purchase, and when you get it, you have nothing left for metal. Welding is an expensive hobby. Metal prices have been rapidly going up, and where it will stop, is any one’s guess. But having sufficient quantities of quality metal to begin practice on is important. It’s not necessary to purchase full sheets of metal to practice on, but it does require sufficient amounts to be able to repeat the same weld over and over. My recommendation is to go and purchase flat bar stock from a local steel supplier. Two inch wide pieces in at least 1/8” and ¼” thicknesses are quite adequate. These pieces can be cut up into short 4”-6” pieces and can be arranged in a variety of positions and joint types. A full 20 foot stick can yield lots of experience. The fresh, new steel relatively free of rust will guarantee a more enjoyable learning experience. Quarter inch thick pieces can be beveled as well so that open root welds can be practiced.

Someone new to welding may not realize that there is likely a steel supply house within driving distance to them most places in the United States. Large home stores, and farm supply stores often have short pieces of bar stock or small pieces of plate steel. Unfortunately these prices are the very things that drive people to experiment welding on pieces of rusted, or painted junk steel. Typically, you will find that a full piece of steel, aluminum, or stainless costs as much to buy as does the tiny pre-cut pieces in the local hardware chain. Buying from the steel supplier can be a daunting experience the first time, learning the jargon and short hand used at a fast moving pace, but it will save money in the pocket book. It will also help reduce early learning stresses by offering ideal working, and practice conditions. So if the prices of steel at the local supply house are making you wish you had saved money and looked around for a used welder, then go to the phone book and find you a good local steel supply house.

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A note on Aluminum welding:

Thursday, November 11th, 2010

Welding aluminum can be done either with a wire feed welder or stick machine. All the general welding safety rules apply, and follow them can avoid dangerous accidents.

• Wear protective welding hood while welding aluminum. UV rays can be very harmful to eyes.

• Always wear welding gloves, long jeans, boots and welding jackets so that welders can protect their body from sparks and heat caused by welding.

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

• Always turn the welder off and put cords and leads safely away after welding aluminum. Clean up any tools and materials used in the project so they don’t become a hazard.

• Before inspecting the machine make sure that all the cords and welding leads are free of defects and that no bare wire is showing before welding aluminum.

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A View On Aluminum Welding:

Monday, October 25th, 2010

Welding of aluminum can turn out to be as a tricky task and it is usually saved for professionals. To learn the process and proper techniques of weld by following safety precautions it will usually take lot of your time. After learning the process of aluminum welding you can conduct this activity on your own.

While performing the task of aluminum welding you must check the surroundings of your work environment. Be away from electrical wires or outlets and keep your environment well ventilated. In addition to this one important point you must remember is, to perform the task by wearing gloves, welding helmet and by following other safety measures too. Do remember that your head should always be away from any fumes, even when you have worn a weld helmet.

Clean the aluminum that you are going to weld. Spray off the surface of aluminum with the help of electrical cleaner and then rinse it off with clean water. Dry up the metal once the dirt is clear. At the time of aluminum welding remember that this is the area where you are going to compress the pieces so as to prevent them from wrapping.

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How to protect yourself while welding Aluminum:

Friday, October 22nd, 2010

You can weld aluminum either with the help of wire feed welder or a stick machine. If you don’t follow safety rules it can lead to dangerous accidents.

• Always wear a protective welding hood when aluminum welding. Ultra violet rays created in welding process are very harmful to the eyes.

• While welding it is important that you wear thick leather welding gloves, long jeans, boots and a welding jacket to protect yourself against sparks and heat caused by welding.

• Clean the work area if there are any flammable items such as rags.

• Inspect the machine to ensure that all the cords and welding leads are free of defects and that no bare wire is showing before welding aluminum.

• Always turn the welder off and put the cords and leads safely away after welding aluminum. Clean up any tools and materials used in the project so they don’t become a hazard.

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Techniques of welding aluminum:

Thursday, September 30th, 2010

Aluminum welding is easier than welding steel. Several methods are used in joining aluminum via welding: mig welding, tig welding and using a stick electrode. MIG welding is a process that will require some post-weld touchups for a presentable finish. Mig welding uses an electrode of continually fed wire forming the base of the welds, which is also shielded by an inert gas or gas mixture. While using aluminum for mig welding, it is considered somewhat messy because you’ll need to use the spray transfer method in which the arc creates a spray of tiny metal beads.

TIG Welding does not require must post-weld clean up and finishing, and is therefore ideally suited to quick and easy welding of aluminum. Rather than using a fed-wire electrode, tig welding uses a permanent tungsten electrode that is not consumed by the welding process. You have to add any filler metal manually, making this process best suited to joints that can be achieved without additional metal.

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Everything you ought to know as to how to weld Aluminum:

Friday, September 24th, 2010

Safety First:

When welding aluminum, wear all needed safety equipments. You should wear gloves, goggles, hearing protection and a heavy apron so that you can protect your body from spatters. Wear eye protection equipment to protect your eyes from ultraviolet rays. Make sure your work area is well ventilated so that fumes can be removed when welding. For precaution purpose, keep your face away from fumes as far as possible.

Material preparation:

• Clean away all the lubricants.
• Remove aluminum oxide from the surface of the metal with the help of a metal brush.
• Do not use a brush that is used in other materials.
• While pre-heating is not compulsory, if you’re welding two pieces of different gauge aluminum, pre-heating can help prevent some problems.
• While pre-heating aluminum, it should not exceed 230 degrees F.

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Guide to Aluminum Welding

Thursday, August 27th, 2009

Aluminum is the most difficult alloy. Initially, aluminum oxide should be cleaned from the surface. Heat treatable aluminum alloys receive their strength from a process called ageing. Notable decrease in tensile strength will happen when welding aluminum due to over-ageing.

Welding aluminum is very easy as it melts easily in low temperature and does not crack after solidifying. Aluminum welding is done according to the type of aluminum used like non-heat treatable alloys containing small amounts of manganese or magnesium and heat treatable alloys containing copper, silicon, zinc or magnesium. These types of aluminum can be welded easily but other metals like copper and lead are difficult to weld and often lead to crack while welding.

Different process of aluminum welding is TIG welding, MIG welding, gas, plasma, resistance welding etc. TIG Welding is best suited for welding pipes and repairing castings. MIG welding is best suited for welding thicker aluminum work pieces at a faster rate and for achieving long, continuous welds. Always clean the aluminum before welding, to remove the oxide layer. Use a stainless steel wire brush used for cleaning aluminum.

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Certain Safety Steps Can Avoid Injuries Caused By Welding

Thursday, June 11th, 2009

A home owner can save thousands through welding and can also make a little money on the side. But if a person does not take necessary steps it can cause him serious injuries and accidents. To avoid unnecessary injuries he has to take a few precautionary steps.

Grinding wheels and cutting torches can produce lot of sparks. Oil rags can easily catch fire if proper care is not taken. A person should not weld if he is wearing short pants, short sleeves or gloveless as his skin can get burnt. Welding can cause a horrible sunburn effect if the person welding has bare skin exposed. It is always better to wear safety goggles, helmet and gloves to avoid injuries.

Do not use extension rods that are frayed or patched for your welder.
Always use quality equipment. Always use expensive welding hood. It is always better to check you’re grinding or cutting wheels. Make sure there are no gas leaks from any tanks and blades are in working conditions. Never turn off a grinder and lay it on the ground. You may be at the risk of an accident with equipment that is still plugged in, even if it is off. If you are using a gas process for MIG welding see to it that tank valves are fully closed and always unplug the welder.

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