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The most recent discussions

My First TIG Weld - 304 Stainless


August 5, 2020, 4:25 pm

I picked up an AHP201 AC/DC pulse rig a while back. Its mostly sat on the cart, and other than a few plays at making some beads and trying to understand the 40 billion possible settings I have n... Read more »

Is Nitrogen Really Cheaper


July 2, 2020, 2:42 am

I was working on a refrigeration system recently, and between silver brazing and purging we used up 2 plus small bottles of nitrogen. Still had some silver brazing to do and I just didn't want t... Read more »

What gas ?


June 21, 2020, 11:53 am

Which of the 3 common shield gasses is best for MIG welding stainless steel ? I have on hand argon and CO2 , no C25 at this time but i can get it if I need it . -- Snag Witty saying goes ... Read more »

weld conditions sustain 150A v-up


June 20, 2020, 6:35 am

Hi Jim Promised to post on weld conditions. Wish hadn't - this is about being driven mad by not being able to check conditions which worked on a particular day, given covid19 pandemic and laid-of... Read more »

craftsman 35-230


June 6, 2020, 1:39 pm

Hi, Just picked up a craftsman welder model 35-230 i plan to use on a truck frame repair. The welder came without a lead cable.......anyone out there that can identify the correct lead connector for ... Read more »

Get the Best Welder Rental Services - Red-D-Arc Welderentals


May 22, 2020, 9:15 am

Red-D-Arc is the largest provider of welding machine rental and welder rental products and services in North America, with over 60,000 units in our fleet. Eliminate the cost and inconvenience of equi... Read more »

Welding table,checker plate.


March 30, 2020, 7:22 am

Would I make the working surface flat or use the checker side as the table surface? Read more »

New Medicine for Corona virus (COVID-19)


March 20, 2020, 12:31 pm

Corona virus medicine / vaccine COVID-19 medicine today - There is already a finished medicine for Corona virus (COVID-19) in Finland. Faron Pharmaceuticals Oy (FARON) already has Corona medicine,... Read more »

v-up E7018 150A 4mm / 5/32nd" rods


March 15, 2020, 7:39 am

Lincoln Foundation's Welding Procedure Handbook has 5/32nd (4mm) 7018 at 150A for T-fillet|vertical-up|Code-quality|fair-weldability. Taught v-up T-fillet at college with around 85A and smaller rod... Read more »

Airco 300 squarewave welder. Need manual


March 9, 2020, 2:18 pm

Looks similiar to syncrowave 300 -- for full context, visit https://www.polytechforum.com/welding/--.htm Read more »

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The best rated discussions

AIRCO flame cutting table

rating: 5

I have somehow become the one anointed to bring this beast back to life. It has been sitting 10+ years. No manual, no schematics. I have so far figured out that I don't know alot about this thing. Fr... Read more »

Lincoln Ranger stop welding

rating: 5

I raised the amps from 130 to 145 during this is process the welder complained little spark no we disconnected the lines to see what the problem could be to the principals point of no spark at all ... Read more »

handymig by sip

rating: 5

I have a handymig that will not weld, there is a white wire in the gun or torch that is not connected. I would appreciate if someone knew what it is connected to. Thankyou Read more »

10018 rods

rating: 5

I got 250 pounds of 10018 rods from an old welder friends of mine. Im using them for odds and ends as i learn how to weld. im currently taking a class at a local university. I can't seem to find ou... Read more »

How many rod ovens does a poor fool need?

rating: 5

Gentlemen, I just purchased a Phoenix Model 1 rod oven. Supposed to be good for 50 pounds of rod up to 18 long. It's maximum temperature is 300 deg. F and minimum is 100 deg. F. Since I have probab... Read more »

Lincoln invertor Welder for sale CC/CV 350AMP

rating: 5

I wish I could use this, but I don't have 3 phase. I bought it thinking it was a plasma cutter and was buying it for a friend(it was listed that way on ebay,the guy was not a welder and he got it wit... Read more »

Lincoln Square Wave TIG 275 problem!

rating: 5

Help please! My machine is behaving most rudely. It starts off fine an after a few seconds the main arc goes out and just leaves the HF arc and a hissing sound. When I start the machine cold it works... Read more »

Weltec S-80 Stick Electrode

rating: 5

I picked up 10 lbs of Weltec S-80 stick electrodes from the swapmeet. They are labeled general purpose, all position. Does anyone have any background on Weltec or what S-80 refers to? The rods see... Read more »

Slate for a welding table???

rating: 5

How well would slate work for the surface of my welding table. I have a couple of 4' X 4' X 1 pieces I would like to try but I dont know how slate would react. If I cant use them for this I am going ... Read more »

7018 - E7018 - 7018AC

rating: 5

Do you or have you used 7018 on an AC source? Have you ever had anybody tell you should only run it on DC? I've had a couple people tell me you have to run 7018 on DC (ep). I have a box of E7018 ... Read more »

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