Archive for March, 2010

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The Referral Lines In Welding Symbols

Wednesday, March 31st, 2010

It’s true that it will seem all Greek and Latin while you first look at the Welding Symbols. You might no understand head or tail about those symbols but then these symbols are like a lantern in a dark way.

You may consider the Welding Symbols just like a new code language or shorthand that lets you know a lot of information on the weld that you cave to carry about and one you are exposed to these symbols and get used to them, welding will seem to be a much easier process than ever.

The first and foremost piece of weld symbols is a horizontal line and this is the one that lets you know about a lot of information and is called as the reference line. The main thing to note is that one can find that the types of weld are normally shown with a symbol to denote it. These symbols will be normally being near to the center where the reference line is there.

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TIG Finger for an Easy TIG Welding

Tuesday, March 30th, 2010

Just like any other welding techniques TIG welding is equally complex but can be made easier with simple tips those are easy to follow as well. It’s advisable to always use a TIG Finger heat shield during the time when you carry on your welding process. Other than this you may not be able to find a better way to steady your hands.

In fact this is one of the trusted and proven to be an easy way for great TIG Welding results. Many try using a TIG Finger made out of a finger from an old leather glove or any other leather bit. But it might not prove to be as efficient and safer that a high-tech TIG Finger that is heat resistant and can slide easily on hot metal pieces.

While you work on aluminum casting objects like transmission housings which want to be preheated or if it gets too much heated up while welding then a TIG finger will surely be of a great help.

So, here you have got an interesting and useful tip for the day to make your welding experience even happier and easier in the coming days.

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Knowing About Plasma Arc Welding

Monday, March 29th, 2010

Welding is an old process but then inventions and improvements in this field are still up and happening. These days we have a lot of special equipments and different methods to carry out welding and metal cutting works depending up on our needs.

Now here we are gonna study about latest welding process that is more or less like a typical arc welding process and it is nothing but Plasma Arc Welding. The important difference between arc welding and plasma arc welding is that the electrode is directly inserted inside a small nozzle in plasma welding.

Plasma arc welding machines can be operated manually or even automatically as desired. This plasma arc welding process is something that produces thin and a very much straight line of welding. The biggest advantage of this process is that the nozzle keeps the flow without deviation and hence more accurate and powerful weld is obtained.

As the electrode is inserted inside a small nozzle, the inert shielding gas is separated and the arc becomes intensified. Plasma welding machines and processes can be manually or automatically operated. They tend to produce very straight and thin welds. The nozzle allows much less wandering of the arc compared to normal TIG and MIG welding making thin precision welds possible.

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TIG Welding Requires Proficient Welders

Thursday, March 25th, 2010

If you observe most of the TIG welder packages come with a hand or foot pedal that lets you power the heat. Further accessories included in the package are water or air cooled torches. Used for water cooled torches use hot welds. TIG welding machines are accessible in both AC and DC current.

Light task TIG welders frequently run on single or three phase power. Single stage power is mostly used at homes, farm houses or fixes shops. If you purchase a three stage power, you will need phrase converter. If you’re using industrial or heavy duty TIG welder irregularly, then portable converters would be better. Light duty TIG welders necessitate water cooler, micro-start technology for state-of-the-art low amperage initial; and water-cooled torch connections. Most industrial duty equipment has an interior regular cooling fan.

You can locate the size of welding with the help of task cycle. It refers to how much amperage the welder can make at a specified responsibility. Duty cycle is the quantity of minutes out of a 10-minute period a welder can function. Several examples are a TIG welder can carry 200 amps of power at a 60 percent duty cycle. Light TIG welders are rated at 20% function cycle and Industrial TIG welders are rated at 40% to 60% and heavy responsibility products at 60-100 percent’s.

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Accessible Features for Portable Welders

Wednesday, March 24th, 2010

The portable welder comes with lots of different elective features in general, but it is all up to the purchaser to decide what will and will not fit in both finances and work haul. Your portable welder should be a perfect fit intended for your type of welding needs. It should be reliable and safe for process in your workspace.

Your portable welder should come with sure features to keep the worker and the material secure. There are some portable welders that are prepared with non overheating features, that works to keep the electrodes from over contact to heat generated from the power supply engine. It is a great mark in a portable welder to have observed that will keep tabs on the current and voltage flow to make sure it is graceful in the way the job requires.

There are quite a few types of portable welding machines, including those that come with a gasoline power generator. These are wonderful if you have no control or power isn’t available in your workspace. There are portable welders that have a duality in AC (alternate current)/DC (direct current) power output. Even if you are in the need of steady power from the control source or supplier, there are some that are built to aid in keeping the electricity for welding perfect, for a superior weld.

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Everything about the welding gloves

Tuesday, March 23rd, 2010

For many welders it may be quite confusing to find the most appropriate welding accessories. Many of the welders find it as a second nature to pull on the right pair of gloves. The main intention of using gloves is to get protection, comfort and handiness for enhancing welding safety. Here, a valid point is that as welding technique differs, the welding gloves for the process also differ.

Generally it is easy to differentiate between a shielded metal arc welding (SMAW) glove and a gas tungsten arc welding (GTAW) glove. But if you are going for a split-leather cowhide glove or a top-grain pigskin glove for gas metal arc welding (GMAW) it would be a bit difficult. Even though both will protect your hands from heat, the concern is which would give extra protection and comfort. Basically the idea is that you must match the glove with your welding process in order to get the desired level of protection and comfort.

The best welding gloves are always made of leather. But it again depends on the quality of the gloves i.e. where it comes from and why it is suited for a specific welding process. The top-grain leather is the most durable and smoothest leather available. It has the ability to withstand common wear and tear. The leather below the top grain is called split leather. It has a rougher surface compared to top grain but gives protection from heat and is economical.

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Welding Failures In a Bird’s Eye View

Friday, March 19th, 2010

Never feel that a defect in you equipment can only lead to any welding failure. Never try to guess the problem it is always advisable to properly investigate it. Industry gurus say that only you investigate by making an attempt to make out the truth without being misted up by any hypothesis, you can find a solution for it. They say that Welding-failures tend to take place just during the service period.

Welding-failures may be attributed to the welder, otherwise to the store, or to the manufacturer, they say. The worst thing is that you need to prove it out. So, investigation in this not for anything else other than to learn what’s wrong.

Here is a small tip for you to enhance what you are doing when it comes to Welding failures. When you come across some Welding failures it is advisable to carry out to leave the lot as is at that time, until an expert arrives and takes over the control of the situation. You must keep in mind that if you tend to do some repair works at that spot where it is fractured they you could most probably rub out important clues needed for the investigation.

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Understanding The Stud Welding Technique

Thursday, March 18th, 2010

When it comes to stud welding, it is known to be a type of spot welding technique in which a bolt or a custom made type of nut is fused on another metal sheet or object that is needed to be fixed on. The bolts are usually mechanically pushed or held into the spot welder. Stud welding is also known to the stud arc welding sometimes.

Weld nuts are the type of nuts those in general have a projection with tiny crux that melts to make out the weld. Weld studs are something that is made use of in the stud welding systems. As mere screwing would not be as strong as needed for joining heavy metal pieces, stud welding is used in the industry and this is a permanent process with great strength.

A variety of flux called as ferrule is the one that is been used in the process of Stud welding. This made by a ceramic band that gives way to the high temperature generated, puts off the oxidation and keeps hold of the molted form of metal over the weld zone. Ferule later on breaks off from the area all most immediately after the welding process is oven and done.

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Wearing Helmet for Comfort and Safety

Wednesday, March 17th, 2010

When it comes to welding process, safety and avoiding the risk factors cause by the machine is the foremost of all.

Despite the fact that welding helmets are intended and made to save from harm the operator from the visible and invisible radiations like ultraviolet and infrared a welding arc gives off, not every helmet is made alike. There are a lot of options available for each and every king of welders. Foe example, there are passive or the so called auto-darkening lens, then the fixed or variable shaded one and with different viewing sizes. It is always advisable to spend some time in deciding and selecting the helmet which is best suitable forever ones requirements and should surely boost up the productivity and welding quality, over and above the comfort of the operator.

The point about tack welding process or other type of short welds is that it is difficult and inefficient so the operator always has to lift up the helmet to see if thing are fine with the work he has done. Moreover, malfunctioning of helmets to lock or even inappropriate moments also is likely to make operators exposed to arc flashes that will damages the eyes and naked skin. Never take chances while opting for a good helmet and the one that is suitable for you.

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Categorization of Welding Machines With Regards To the Power Supply

Tuesday, March 16th, 2010

As we all are informed about. Welding is nothing but a frictional process that is used to join metals and thermoplastics by means of melting and fusing them as one with the help of some power supply. A substance called as the filler, more often than not the metal or plastic of molten condition is made use of in the process of welding to grasp and fuse the work pieces as one.

Welding is a process that needs an energy source and it can be done with any kind of different energy sources. Energy sources like that of the gas flame, electric arc, laser, electron beam, friction and ultrasound are the sources that are most commonly used in Welding. In fact he source that are to be used for welding purposes mostly depends up on the material and the output. Welding machines are categorized into a constant current or that of the constant voltage. CV machine is used by gas metal arc welding and flux-cored arc welding processes. A CC machine is used to count on a preset number of amps reaching the material being welded.

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