Search found 8 matches

by TaylorBlake
Tue Jun 29, 2021 8:12 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Test coupon
Replies: 18
Views: 2796

Re: Test coupon

6g position loose 3/32 gap with 3/32 filler


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by TaylorBlake
Tue Jun 29, 2021 7:40 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Test coupon
Replies: 18
Views: 2796

Re: Test coupon

Coldman you are correct on the pipe... so would 90-100 amps be good?


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by TaylorBlake
Tue Jun 29, 2021 7:39 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Test coupon
Replies: 18
Views: 2796

Re: Test coupon

Coldman wrote:50amps might be alright for boiler tube, but this coupon is schedule 80 pipe. Needs 90 amps min.
Purging is for stainless steel, this coupon I believe is carbon steel so purge not required unless on WPS.

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by TaylorBlake
Tue Jun 29, 2021 7:39 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Test coupon
Replies: 18
Views: 2796

Re: Test coupon

50amps might be alright for boiler tube, but this coupon is schedule 80 pipe. Needs 90 amps min. Purging is for stainless steel, this coupon I believe is carbon steel so purge not required unless on WPS. Yes sir Coldman you are correct on the pipe... so would 90-100 amps be good? Sent from my iPhon...
by TaylorBlake
Tue Jun 29, 2021 7:16 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Test coupon
Replies: 18
Views: 2796

Test coupon

I thought you wanted a little push through... a nice wedding band... I thought flush and under flush would bust you out


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by TaylorBlake
Tue Jun 29, 2021 5:26 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Test coupon
Replies: 18
Views: 2796

Re: Test coupon

3/32 or 1/8 tungsten? Which is better to use for root pass and what amperage for each?


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by TaylorBlake
Tue Jun 29, 2021 4:05 pm
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Test coupon
Replies: 18
Views: 2796

Re: Test coupon

Schedule 80 2” tube and also scratch start or lift arc?


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by TaylorBlake
Tue Jun 29, 2021 9:57 am
Forum: Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding
Topic: Test coupon
Replies: 18
Views: 2796

Test coupon

Hey guys I am new to this page and fairly new to welding... I am a boilermaker apprentice and I have a question about a tube test coupon... is a loose 3/32 gap with 3/32 filler wire on 100 amps ok? I want to make it as easy as possible for me and I don’t wanna mess up when it comes test time... I us...