Saturday, March 13, 2010

Welding School

Learn basic to advanced welding techniques

Shop or Field Welding: Which one is for you ?

Posted under Featured

I have spent many years shop welding and field welding. Once you become proficient in welding processes like tig, stick, mig and fluxcore you can do both. I have always leaned towards field welding. Every time i have stayed in a shop for a long period of time i find the monotony of doing the same thing every day at the same place drains my life force. The money plays a big part also. I always go broke in a shop. I never really build up a cushion financially. The field provides more challenges but i always feel a sense of accomplishment when a job is over and usually have a nice bank account to show for it.

Welding Description and History

Posted under Basic Welding

Welding has been attempted successfully in unusual conditions, including underwater and in outer space. Underwater welding is widely used in the repair of pipelines and ships, while welding in space is currently under research as a possible way to put together the International Space Station, currently being assembled in outer space.

Tig Pipe Welding : Free Hand and Walking Cup

Posted under Tig Pipe Welding

After the root i add a hot pass and quite frequently change between walking the cup and free hand in the middle of the weld. This all depends on what position I find myself in and the enviroment around me. Sometimes you can get obstucted more easily when walking the cup due to the room it takes to move the tig rig. Free hand can be far less restictive in tight positions.

What is a Field Welder ?

Posted under Welder Speak

Typically welders known as field welders mostly travel to the construction site to work. In most cases the job is temporary and will end at some point. Field welders usually get better pay and get added benefits such as per diem, travel pay and completion bonuses on some jobs.

Getting a Good Purge for Tig Welding on Alloy Pipe

Posted under Advanced Welding

After you insert the diffuser in the pipe and tape back up you are ready to set your flow meter. Crank it up high for a minute or longer. If you have a bigger volume of pipe you can leave it on longer. After initial flush you can turn it down. On a 6″ pipe 10′ft long i would set it around 20-30 on your flow meter. You can check it with a cigarette lighter. Pull a few inches of tape back from the bevel and engage the lighter and put the flame in the gap. If it goes out usually your purge is good enough. You do need to make sure that the pressure of the argon is not blowing out the flame.

Welding and Burned Eyes

Posted under Welding Safety

This most commonly happens to welders but it can happen to any person near the extreme bright ultraviolet light when welding. Pipe fitters also suffer from eye burns quite frequently. If your planning to weld for a career this will happen to you at some point. Below i have listed general knowledge on how to prevent and what to do when you burn your eyes.

Tig Pipe Welding

Tig Pipe Welding : Free Hand and Walking Cup

After the root i add a hot pass and quite frequently change between walking the cup and free hand in the middle of the weld. This all depends on what position I find myself in and the enviroment around me. Sometimes you can get obstucted more easily when walking the cup due to the room it takes to move the tig rig. Free hand can be far less restictive in tight positions.

Welding Safety

Welding and Burned Eyes

This most commonly happens to welders but it can happen to any person near the extreme bright ultraviolet light when welding. Pipe fitters also suffer from eye burns quite frequently. If your planning to weld for a career this will happen to you at some point. Below i have listed general knowledge on how to prevent and what to do when you burn your eyes.

Advanced Welding

Getting a Good Purge for Tig Welding on Alloy Pipe

After you insert the diffuser in the pipe and tape back up you are ready to set your flow meter. Crank it up high for a minute or longer. If you have a bigger volume of pipe you can leave it on longer. After initial flush you can turn it down. On a 6″ pipe 10′ft long i would set it around 20-30 on your flow meter. You can check it with a cigarette lighter. Pull a few inches of tape back from the bevel and engage the lighter and put the flame in the gap. If it goes out usually your purge is good enough. You do need to make sure that the pressure of the argon is not blowing out the flame.

Advanced Welding

Tig Root Pass on Pipe: Tight Gap Welding !

Welding with a tight gap with tig can speed up your weld time dramatically. It is great way cut down on time under the hood. It works way better on jack stand welds when fabricating pipe. Position welds in the field sometimes get to much high low, obstructions are in the way, etc….. High/Low is a tight gap killer. When welding on a higher heat it can gouge your inner bevel which leads to problems that will be discussed later.

Featured

Shop or Field Welding: Which one is for you ?

I have spent many years shop welding and field welding. Once you become proficient in welding processes like tig, stick, mig and fluxcore you can do both. I have always leaned towards field welding. Every time i have stayed in a shop for a long period of time i find the monotony of doing the same thing every day at the same place drains my life force. The money plays a big part also. I always go broke in a shop. I never really build up a cushion financially. The field provides more challenges but i always feel a sense of accomplishment when a job is over and usually have a nice bank account to show for it.

Welder Speak

What is a Field Welder ?

Typically welders known as field welders mostly travel to the construction site to work. In most cases the job is temporary and will end at some point. Field welders usually get better pay and get added benefits such as per diem, travel pay and completion bonuses on some jobs.

Video Today

welding school


This is a YouTube video that compares two different types of welding hoods.

The first hood he talks about is a old school regular welding hood. It has no bells or whistles. Just simply put it on and start welding.

The second hood he talks about is a auto-darkening hood. It has adjustable shades and special settings for different types of welding such as tig, mig, flux core and stick.

In the video he definitely favors the automatic-darkening.

Conclusion: I have used the auto-darkening welding hood only a few times over the years. The times i did use the automatic lens it gave a very bad strobe light effect when putting a root with 6010 rod on pipe. It was a real annoyance. Unless they have changed this on the newer models i think i will stick to my old school pipe liner.


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