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The various helpful tools provided through Tool Room Services    by R Sheth

Building the structure of metal by cutting, bending, and assembling the raw metal is called Metal Fabrication. The cutting of metal during fabrication is done by saw, shear, or chisel; torching is done with handheld torches like oxy-fuel torches or plasma torches. The bending is done using hammering, press brakes and similar type tools. The assembling that is joining of the metal pieces is done using welding, threaded fasteners, adhesives and riveting.

Scope of Metal Fabrication:

* The work done by blacksmith is also included in fabrication.
* The products produced by welders involve the use of fabrication.
* The making of boilers also requires the skilled use of fabrication techniques.
* Steel erectors/ironworkers, are also involved in metal fabrication jobs.

Raw materials

The standard raw materials used by metal fabricators are plate metal, sheet metal, tube stock, welding wire, hardware, CDSM, square stock, sectional metals, castings and fittings.

Specialities

Many fabrication shops have speciality processes which they develop or invest in, based on their customers

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Hobart Handler 210 vs Millermatic   by Easy Metal Works

The Hobart Handler 210 is the portable (weighing only 76.5 lb or 34.8 kg, so you can take it easily from jobsite to jobsite) MIG welder that has maximum of 210 amps of welding power for handling 3/8 inch thick mild steel and enough control for 24 Gauge material. It is designed to handle a variety of materials including mild steel, stainless steel, and aluminum. The ease of connecting an optional direct plug-in spool gun expands the capability of the Handler 210 for aluminum welding.

It has enhanced magnetics and infinite wire feed speed control offers easier fine control of the output parameters for improved arc performance with less spatter, resulting in a better bead appearance and less cleanup.

If you have to do aluminum works, you have probably heard that TIG is the right choice for that. Not this time – Handler 210 welds aluminum as well as steel. You do get a bit of black but that easily wipes off as the magnesium in the aluminum oxidizes.

Ergonomics & Safety. Built-in contactor for easy use is also an excellent safety feature which makes wire electrically “cold” when not welding. You will have easy access to polarity changeover includes storage holes for spare tips. Dual groove drive rolls make it easy to switch between .023/.025-Inch (0.6 mm) and .030 to .035-Inch (0.8 – 0.9 mm) wire. And self-resetting thermal overload and motor protection prevents overheating.

Comparison. The Hobart 210 and similar Millermatic equivalents (Millermatic 180, 210, 211) have pretty much the same output, duty cycle and they use the same drive mechanisms. The feel and weld quality should be virtually identical. So what are the differences?

The Millermatic is a dual voltage machine that can operate on 230 or 115 volts. That means it would be easy to take it to a buddy’s house and weld lighter materials by plugging into a standard 115 volt circuit (20 amp service). However in order to take it with you, it should to be light. Millermatic does not fall into that category and also costs up to two times as much.

Millermatic offers adjustable voltage up to 7 positions, which might seem as a big plus, however experts sometimes consider infinitely adjustable voltage control not to be an advantage over the tapped voltage units. Tapped voltage units are easier to setup and get the arc dialed in.

The Millermatic will be of a slightly better build quality since Miller now owns Hobart and sells the Hobart as a lower cost alternative to the Millermatic line. They don’t usually skimp where it really counts though. Things like the drive mechanism will most likely be identical.

Hobart also offers more current for welding aluminum, so if you are uncertain so far but are planning to work mostly with aluminum go for Hobart. Spool gun coming with Hobart is the Miller Spoolmate 3035 equivalent.

About the Author

This article has been written by producers of Easy Metal Works – product resource and review website dedicated to Hobart welding and cutting equipement, and other metal works products. Hobart Welders tools are known for excellent quality and reliability. However, with so many product models that are offered today, it is hard to choose which one is the most appropriate for your needs and budget

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Underwater welding and its risks   by Oleg Gladshteyn

Welding is a riskier job, in spite of being qualified; there are several welders who are prone to injury often. The most risky part is underwater welding. Welding needs are in tons and it requires a great effort to become a welder-diver. Apart from knowing the technical aspects concerned to welding, he or she should be a person who is proficient in diving because without that it is difficult to become a welder-diver. However the salary they earn is covered in a wide range. And this article is all about the basics of underwater welding and the risks involved in it.

Underwater welding is basically performed on steel and it is a definite need that the person who performs underwater welding should be thousand times superior to the commercial divers. The task includes repairing pipelines, offshore oil platforms and ships.

Also there are different types of welding which could be performed underwater but then the most commonly done welding technique is the arc welding. There are several applications concerned to the underwater skills which also include darning ships, working on oil platforms and sustaining underwater pipelines. People with skill and practice in this field can find employment all over the world. The possibility of electric shock is very high as the person should do the welding process by staying inside the water.

The task is carried out by specialized welders and they are specially trained to work under water. This is very helpful for several companies because lifting the structure away from the water is difficult though it is possible it costs a huge sum of money also waste of time. Thereby to overcome this disadvantage underwater welding has headed out. This underwater welding can be classified into two types namely dry welding and wet welding.

Mig welding and tig welding process can also be done under water. But then the exact details relating to the water pressure levels should be identified. Portable welding machines are of great use and portable welders can also follow the proper set of guidelines to follow under the water to have a safe welding. Since underwater welding is performed on steel very rarely you get to into the process of welding aluminum.

The necessary equipment like welding guns and metal cutters should be carried. He or she wears a dive suit, and utilizes welding tools that are tailored for wet environments. And this customized equipment will help the person to safeguard from electric shocks. On the whole, someone who undertakes underwater welding as their profession should be a good welder as well as a good diver.

Controlled power supply can avoid electric shocks under the water. The major risk associated with the underwater welding is an explosion. Hydrogen and oxygen are great explosives and when ignited it can lead to an underwater explosion.

To sum up it is one of the riskier tasks in a welder’s life so before performing the task it is necessary to follow the exact guidelines to avoid injuries.

About the Author

Oleg Gladshteyn is a professional writer working with Everlastgenerators and he writing many articles about Plasma cutter, Mig welder, Tig welder. For more information, visit our website.

degrees that work: Advanced Manufacturing