Tungsten Inert Gas(TIG) Welding Troubleshooting

If you use Tungsten Inert Gas(TIG) welding process on your project I think better you consider to know TIG troubleshooting to isolate and classify welding trouble.

Below welding trouble categories:
1. Electrical
2. Mechanical
3. Process

There are common TIG welding problem:
Burning Through Tungsten Fast
Tungsten Contamination
High-Frequency Present — No Arc Power
Porosity and Poor Weld Bead Color
Yellow Powder or Smoke on Cup—Tungsten Discolor
Unstable Arc
Arc Wanders
Arc Will Not Start or is Difficult to Start
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TIG Process Cost Considerations

Before you start a construction project better to make consideration all cost including welding process cost, direct and indirect costs.

If you use tungsten inert gas welding(TIG), indirect costs like are training welding personnel and overhead. Direct costs like are welding equipment, welding filler wire, shielding gas, and labor.

A welding process cost evaluation should including:
1. Welding Labor and overhead cost per foot of weld.
2. TIG welding Filler wire cost per foot of weld.
3. Gas cost per foot of welding.
4. Power cost per foot of welding.
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Welding Courses-How investigated weld failure ?

The following four areas of interest should be investigated to determine the cause of weld failure and the interplay of factors involved:

(1)  Initial weld failure observation .

The detailed study by visual inspection of the actual component that failed should be made at the failure site as quickly as possible. Photographs should be taken, preferably in color, of all parts, structures, failure surfaces, fracture texture appearance, final location of component debris, and all other factors. Witnesses to the failure should all be interviewed and all information determined from them should be recorded.

(2) Background data.

Investigators should gather all information concerning specifications, drawings, component design, fabrication methods, welding procedures, weld schedules, repairs in and during manufacturing and in service, maintenance, and service use. Efforts should be made to obtain facts pertinent to all possible failure modes. Particular attention should be given to environmental details, including operating temperatures, normal service loads, overloads, cyclic loading, and abuse.

(3)  Laboratory studies.

Investigators should make tests to verify that the material in the failed parts actually possesses the specified composition, mechanical properties, and dimensions. Studies should also be made microscopically in

those situations in which it would lead to additional information. Each failed part should be thoroughly investigated to determine what bits of information can be added to the total picture. Fracture surfaces can be extremely important. Original drawings should be obtained and marked showing failure locations, along with design stress data originally used in designing the product. Any other defects in the structure that are apparent, even though they might not have contributed to the failure, should also be noted and investigated.

(4)  Failure assumptions.

The investigator should list not only all positive facts and evidence that may have contributed to the failure, but also all negative responses that may be learned about the failure. It is sometimes important to know what specific things did not happen or what evidence did not appear to help determine what happened. The data should be tabulated and the actual failure should be synthesized to include all available evidence.
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TIG Basic Weld Joints Techniques Pdf Download

Before you do Tungsten Inert Gas(TIG) welding processing first step you should know knowledge and Basic Weld Joints Techniques.

Basic Weld Joints Techniques very important to get good quality welding result. If you use wrong Weld Joints Techniques you will get poor quality welding results.

On the TIG Basic Weld Joints Techniques Pdf you will learn about:

Arc Length, Gas Cup Size, and Electrode Extension

Torch Position for Arc Starting with High Frequency

Manual Welding Techniques:

- How to Making the Stringer Bead

Butt Weld and Stringer Bead:

- Torch and Rod Position

Lap Joint:

- Torch and Rod Position

T-Joint:

- Torch and Rod Position

Corner Joint:

- Torch and Rod Position

Techniques for Out-of-Position Weld Joints:

- TIG Welding in the Vertical Position

- TIG Welding in the Overhead Position

Techniques for Pipe Welding

Arc Starting Procedures

TIG/GTAW Arc Starting Tips

Tips for Automatic Applications

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Step Finding Good Welding Schools

If you want become welding professional, but you don't know how to start. Becoming a welding professional could be as simple as attending a welding schools course online, free welding schools class, or even a welding training program.

Below some step Finding Good Welding Schools:

1. Make sure you enroll good Welding Classes

Before join welding schools, you should finish secondary school until a minimum of grade 10. It is preferred however, that you have a high school diploma or your GED If you want to take welding schools courses.

2. Search Welding Schools Classes near you live

The second step is searching welding schools classes near you live. Welding schools are generally colleges or trade schools that offer welding training programs. A general welding program can be anything between eight weeks to eight months long. You can nevertheless become a welder without education, but more businesses are searching for Welders who have completed schooling, and are happy to pay them more.

3. Make sure you join best Welding Class

Once you find a welding school classes in your location that provides classes, you must apply to one of their welding classes. Usually welding schools will offer a general welding certification class that trains you the fundamental techniques and basic best practices in the welding industry. You may however desire to specialize in something else by enrolling in other programs that have GMAW Welding Classes, Underwater Welding Classes, or even Welding Inspector Classes. There are tons of things to consider when enrolling in a welding course.

4. Make sure to get Welding Apprenticeship

The moment you are done your welding training program, you are going to want to apply for a Welding Apprenticeship. The Welding Apprenticeship will assist you to gain practical, hands-on experience in the welding industry, that can't be copied by online classes. You may be asking yourself "How much time are welding apprenticeships?", and the answer is not simple. Welding Apprenticeship may range anywhere from 4 months to 4 years, and It all comes down to how much you work, how much welding training you want, and how intense the program is. Once you are done your apprenticeship it is a good time to consider the welding certification class.

5. Make sure you pass Welding Certification Exam

To complete your welding certification test, you should consider accessing the AWS/American Welding Society's Website which has all the information you need on completing the test. 

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Flux Core Arc Welding Technique and Tips

You start learn or want become expert on FLUX CORE ARC WELDING process, below some tips and technique to support that. Commonly effective ways to improve your FCAW welds are:

# Set your FCAW welding machine properly

# Make sure to use appropriate welding technique

Setting your FCAW welding machine properly is the first step that certified welders have. This step is most basic and effective to get FCAW good result. A properly set-up FCAW welding machine allows certified welders to focus on their welding technique and avoid other welding troubles that should not have happened in the first place. When setting the welding machine the certified welder should be set on base metal that is close to the same thickness that will be welded. This step is very important because different base metal thicknesses require different welding machine settings. Do yourself a favor before you start weld by spending more time setting your welding machine properly and less time grinding.

Welding techniques depend on with all welding processes. When it comes to FLUX CORE ARC WELDING the welding techniques used vary depending on the material thickness of the base metal and joint type. A basic welding technique is forehand technique vs. backhand technique. Forehand technique welding should be done on metals 1/4 of an inch or thinner and are also best used for cap or single pass welds. 

Backhand welding techniques are only used on thicker metals and in most cases inside of a bevel. The main difference between forehand technique and back hand technique is the type of penetration the weld produces. Forehand produces a shallow wide penetration that makes the weld look smooth and flat. Backhand produces a deep narrow penetrating weld that is convex and narrow.

Commonly welding technique used patterns are a steady forward motion, tight weaves and circles. To decide what technique to use it just comes down to what works best for you. Some certified welders do well with circles and others with weaves. FLUX CORE ARC WELDING is very easy to do as long as the welding machine is set-up properly. Welding process and technique always comes down to comfort and it is always best to do what is comfortable for certified welders.

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GTAW welding Tips

We all know that Gas tungsten arc welding is used for complex and stylish welding process and the welding machine used for this purpose is called as Gas tungsten arc welding welder. Using Gas tungsten arc welding machine is not so easy and pick up the welding electrode for the mission you start. Crush the welding electrode to a position and aim for a sharp tip so that it becomes more rounded as you weld. Put the welding electrode into an electrode holder that has the tip about 1/4-inch away from the cover and go for the settings on Gas tungsten arc welding welding machine. AC, DCEP and DCEN are the three important ones and prefer AC for aluminum material.

Position the air on to five seconds and turn the max amps to 250. Also turn on the gas and different gases are used for different metals, for example, use pure argon for aluminum and use argon and carbon dioxide mix for steel. Brush your welding table or level piece of sheet metal with a wire brush so that it will be clean and flat. Welding Gears are essential during welding and the welding safety gear includes goggles, apron, hood and gloves. Make sure that you have all these welding gears so that you can weld safely and as said above, a clean place is essential so that you can work in a safe environment. Holding the welding electrode is considered while doing the Gas tungsten arc welding. Grasp your welding electrode in your hand that is dominant and start your welding project. Ensure that every setting is proper and make sure that they are not changed or wrongly adjusted.

Choose Gas tungsten arc welding welders count while doing Gas tungsten arc welding because only a proper welding tool can improve the performance of welding process. Counterpart the metal type you want to weld and for case, if you require a welder that are proficient to weld hard metals like steel, cast iron or bronze, then only an AC welder can work well. AC welders operate using electricity that "alternates" direction back and forth. For soft materials, DC welder is strong enough to weld and it creates a stable arc for welding. Make your mind up on how thick of metal you are going to weld and based on the thickness, select high amperage or low amperage welder.

Gas tungsten arc welding Duty cycles comparison is essential while buying welding machines and compare the duty cycles and it is a term that indicates how long the welder can operate. Select a Gas tungsten arc welding welder that you're your budget and in general it costs from Make certain the Gas tungsten arc welding welder fits your budget. $500 to $2,500, and the rates vary depends upon the power and company. While buying Gas tungsten arc welding machine, compare the welding machine features and warranties so that you can be able to get the best Gas tungsten arc welding machines in an affordable price.

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