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#16 Team_Green OFFLINE  

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Posted May 07, 2013 - 12:38 PM

Thanks everybody!

I asked the teacher what the pass rate is, he said only 15% of seasoned welders pass. That is pretty low, and I am far from seasoned!

It comes from stress of being tested.. If you were to test the welders welds in the field they would pass easy..  Like OCH said don't take it personally if you don't make it the first run. Try again.  Don't focus on the inspection part focus on the welding part.



#17 Ryan313 OFFLINE  

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Posted May 07, 2013 - 01:12 PM

I tried what the CWI had told me... I had no arc blow! I made 3 different root passes on 3 different practice plates today and they came out pretty well!

I do not have my hopes up on passing tomorrow, but I will give it my best! If I fail tomorrow, I will likely have at least two, maybe three tries next year.

#18 skyrydr2 OFFLINE  

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Posted May 07, 2013 - 02:22 PM

You'll do just fine!! And keep the ground clamp as close to your weld as safely possible! Go get um!! Then you can try for your 6G weld test ;)

#19 Ryan313 OFFLINE  

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Posted May 07, 2013 - 04:00 PM

One of the things the CWI said was to keep the work clamp is to keep the work clamp as far away from the weldment as possible! :D

#20 UncleWillie ONLINE  

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Posted May 07, 2013 - 05:31 PM

Good luck. I think you will do fine.

#21 skyrydr2 OFFLINE  

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Posted May 08, 2013 - 03:40 AM

Practice, and understanding of your welding environment will greatly help with "arc blow" . Is it magnetic or thermal? And can it be used to your advantage for better penetration ??
Isolate your test piece with something non-magnetic , like brass clamps can help.
If i need to weld srtuctual steel I try to use ac if possible, especially on heavy stuff (3/4" or more ).
Dc at high amperes can get pretty tough to control and your beads get all wavey and to fluid like.

1/8 7018 Lincoln ex caliber rod at 75-100 amps ( depends on machine ) i like to keep my arc short and controlable , if you let it get too long then you can see the molten puddle start " dancing" not good and thats when the game is on! You have to really work to get it under control.
Make sure your comfortable !!!! If you are figiting and wiggling to get comfy your weld will not forgive you.

Edited by skyrydr2, May 08, 2013 - 03:42 AM.

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#22 Ryan313 OFFLINE  

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Posted May 08, 2013 - 01:40 PM

Done! When you take the test, you get two plates; that way you can have the second if you mess up the first.

Halfway up the root pass on my first plate somebody hit their head on the emergency shut off switch! It was not very good anyway, so I did not care and I went to the second plate.

The root pass on my second plate was great! I had arc blow at the very end, but the ends are normally thrown away anyway because of the crater when you stop. The teacher said it was just about te best root pass he has ever seen! Other then the arc blow of course.

It took me 3 hours to make all of the welds, and another 25 minutes to grind it. I think I did pretty well, but I am not confident that I passed. While I ground down the face, I did not see any porosity or slag inclusions... So that is a very good sign.

Results will be in after 3-4 weeks.

I took pictures, I will post them soon.

Edited by Ryan313, May 08, 2013 - 01:41 PM.

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#23 HowardsMF155 OFFLINE  

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Posted May 08, 2013 - 01:49 PM

Congratulations Ryan!!

Look forward to hearing what your results are.



#24 Ryan313 OFFLINE  

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Posted May 08, 2013 - 08:36 PM

Here are those pictures I promised.

 

These are the two plates I made up for the test.

39C6CBEF-D642-463D-BD71-0E1A2435F300-394

 

This was the root pass of my second plate.

F09DFE24-572F-4D9B-A134-A5545ACD3A45-399

 

Here is the grove 90% filled. Sorry, pretty blurry.

C868862E-09BE-4E0E-A93A-F0BADFB77A80-394

 

I was in a rush to finish on time, and I did not have a chance to take a picture of my cover passes.






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