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The most recent discussions

Newbie needs more help


September 15, 2017, 2:07 pm

Greetings and a very happy Friday to all. Today's project is to hog out holes in the pole mount solar panel rails. I am using a pair of H beams on an 8' trailer axle (no camber) to set angle of p... Read more »

Welding equipment comparison UNITOR, DREW, VORANCO


September 13, 2017, 8:31 am

Welding equipment comparison UNITOR, DREW, VORANCO https://www.polytechforum.com/img/5v https://www.polytechforum.com/img/5w https://www.polytechforum.com/img/5x https://www.polytechforum.com/img/5y Read more »

"Download Test banks and solution manuals for university books for $25...


August 27, 2017, 11:04 am

Download Test banks and solution manuals for university books for $25 each ! Authentic and genuine files only. Email us at student4g@outlook.com if you need to buy any test bank or solut ion manua... Read more »

Where to repair a cast iron casting (transmission)


August 17, 2017, 10:09 pm

I bought a used industrial machine (a huge pipe threader). It is a super nice machine in all respects and was rebuilt in 2007. However, the reason why it was sold for nothing is that the cast iron ... Read more »

Newbee needs some help


August 14, 2017, 4:41 pm

So I welded a pair of 1/4 plates to fashion a door for my potato locker. I used 2 channel around the perimeter of the door. Door then 2.5 which is good for deadbolt. Got all done and there is a ... Read more »

NDE by pressurisable structural hollow sections?


August 8, 2017, 10:48 am

Hi all For a structure like a crane, is it ever a designed fitness-for-purpose / planned Non-Destructive Examination technique to make it entirely from Structural Hollow Section, fully-sealed (eg... Read more »

WPQ qualification limit


August 5, 2017, 11:24 am

Dear Sir, Can anyone put light on welder qualification limit for impact as per ASME Sec IX. Read more »

Stainless Steel v/s Carbon Steel Welding


August 4, 2017, 11:37 am

The welding world is diverse with a range of different skills, techniques and expertise areas. 2 most common materials that every welder works on are Carbon Steel and Stainless Steel. Let us look upo... Read more »

weld test 5F-up / PH


August 3, 2017, 6:05 am

Hello all I'm going for a weld test. 5F-up / PH (tube (horizontal axis) to plate (vertical)) GMAW / MIG (process 135 - Argon-mix ArCO2) Steel Any suggestions? Any resources I can benefit from ... Read more »

Test banks and solution manuals for university books for $25 each


July 29, 2017, 7:09 pm

Download Test banks and solution manuals for university books for $25 each ! Authentic and genuine sale only. Email us at student4g@outlook.com if you need to buy any test bank or solut ion manual... Read more »

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The best rated discussions

Brazing or welding thick copper?

rating: 5

I will be making a gate for the entrance to a house and will need to join some thick copper rectangular bar. The 0.5 x 1 110 copper bar is for the gate frame and the infill of the gate will mostly be... Read more »

Seeking advise on engine cases repair

rating: 5

I have to repair damage to a 2-stroke dirt bike's cases. The damage occurred when a bolt or a threaded stud ended up in the cases (don't ask how - I have no clue) and was pummeled around by the crank... Read more »

Fuse for HF Dual MIG 151

rating: 5

I blew a fuse on my Harbor Freight Mig welder. It's the 220v dual mig 151. I can't find the manual for it, and was wondering if anyone knows what fuse it takes? The fuse is a glass tube and wire type... Read more »

Meco Aviator Torch

rating: 5

I recently picked up a box of tools containing a Meco Aviator torch and 18 assorted AV tips. I've done some checking and I can't find any information about the Aviator. The handle says Aviator and do... Read more »

Building a 5 x 8 Utility Trailer

rating: 5
  [ 2 ]

Would a 5 x8 utility trailer be a good project for a beginning welder? I would be using a GMAW with 75/25 argon/c02 mix it is 110 volts. I did some measuring of trailers locally and they are made ... Read more »

Harbor Freight TIG - Adding a foot pedal

rating: 5

Came across a good deal on a Thermal Arc foot pedal - it has a 5 K pot. The current control on the front panel of the HF Tig is a 10K. It is wired up as a pot (not a rheostat) - my plan is just to ... Read more »

Trailer and Power Generator

rating: 5
  [ 2 3 4 ]

Hurricane season is coming and I needed to get a source of emergency power to keep my business inventory frozen if we do lose power. I don't have a convenient place to permanently place the gene... Read more »

Alloy/process used for NASCAR roll cages?

rating: 5

About six months ago, I brought up the age-old question of when and how to stress-relieve 4130 in a posting to this newsgroup. The ensuing thread, titled 4130 debate, was interesting, but at the end... Read more »

Miller 130 XP with Argon Tank

rating: 5

hello, I have the opportunity to purchase a used (looks like new) Miller XP 130 with argon tank, in a rolling stand. the price is $300 in San Antonio, TX. This seems high for a used rig to me, just l... Read more »

welding table from 1/8" plate?

rating: 5

I would like to have a little welding table for welding small things. I have a plate (part of some military equipment) that is approximately 1/8 thick, and 24x18 in dimensions. I would like to know ... Read more »

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