dirtmidget33 wrote:a video that talks about it so here that is, and you guys can get info from some engineer instead of me spelling it out.
Welding 4130 CrMoly: http://youtu.be/ytSrEggjz1A

Thanks for sharing that video...the author makes some good points and explains the "why" behind the facts presented.

I think there are a few members here who have used that machine. I don't remember any negative comments.

Like the others have stated, need mo info....there are some "rules of the thumb" that apply to material thickness and a "starting place" to set the amperage. ie. you need approximately 1 amp for every thousandths of thickness when welding mild steel. So..... .125"(1/8")...

Otto Nobedder wrote:ifusion,

Curiosity is a "curse" that more people should suffer. Curiosity keeps me interested and learning every day. Curiosity keeps me in my job, as I always want to learn the next thing.

Welcome to the perfect forum for the curious!

Steve S

+1 Ditto what^he said

Carrie here...Thank you all for the warm welcome! As an adjunct welding instructor I teach several classes. Where do you teach in Va? I'm in Lynchburg, Mrs. Jewel Newman runs the welding curriculum at the local community college here. I see a lot of the other Community college instructors attend ou...

Any good? How do they compare to some of the larger names like JET? I have the samll Northern (4.5x6 with 1/2" x 64.5" blade) saw at home in my lil shop. You get what you pay for. That lil saw has cut a lot of material but the castings and machined surfaces are not as true and nice as hig...

ImLow78 wrote:if you guys would like to see them.
my vertical up and Chinese vertical with .045" (and possibly 1/16") dual shield. I rock .045" but I'm still working on that 1/16".

Shannon (jack of all trades but master of none)

Love to see some 1/16 dual shield Vert-Up.

Friend of mind crashed his 2014 Jeep, bent both tubes out of hoghead. He thinks i can fix it... anyone had any experience at welding cold roll to cast? Are those axle tubes plug welded into the cast housing from the factory like the older stuff was? My 70 Camaro had a half inch of grease around tho...

The whole point of preheating it is to slow the cooling rate of the entire piece too keep the martensite at bay. This is something that I had been taught when dealing with welding thick sections of mild steel....the thick sections tend to be a huge heat sink and cooled the weld off too quickly, so ...

I think I hate this thing!!!!! The welder is fine, have some real crappy aluminum. My left hand will not talk to my brain. My foot has lost its mind! I don't know what possessed me to want to try this???? Think I will stick to my mig and spool gun! Anyone want to buy one?? 6 days old, extra new CK ...

I believe your tungsten might be turning black or other colors due do insufficient post flow gas shielding. You must set your post flow long enough to allow your tungsten to not be red any longer and then the gas shut off, to put it in simple terms. 10-15 cfh is sufficient gas flow for practice. Yu...

doneinone wrote:

Miter Joint.jpg

The attached image is what I was talking about.

Nice welded joint in that pic. After I posted, I thought about it more and I see what you mean...but like stated already with that thickness it should not be a problem.

Yeah, I was horribly uncomfortable. He had me welding with my arms cocked all weird and the rod coming 90 deg out the side of the stinger. Another student suggested I hang the whip up and have the rod come out the tip of the stinger. Night & day! Something else that helps is to throw some extra...

OK that is weird....nevermind me, it seems to be working A-OK now.

From the main forum page(where all of the main topics are located)...can anyone go straight to the last post in a thread by clicking the last post icon over on the right side of the screen?...or do you have to open the thread, then click on the last post icon? It might be the computer that I'm using...

motox wrote:wish my tool boxes looked that neat.

+1....box looks great

weldin mike 27 wrote:Wow,

An American that doesnt "mig like tig". I didnt think there were any out there.

All very nice.

Mick

::raises hand:: OK, I admit that I prefer to see slick straight stringers vs the whipped, rippled caps also.

To complement Mr. Wright's statement it is likely your gas flow is to high. I posted a article to back this up a long time ago and will try to look it back up and post it here. What is your CFH? -Jonathan I had a kid in our shop who thought a little gas is good so a lot must be better...LOL I think...

bigworm40 wrote:40

That gas flow sounds good to me, I wrote my WPSs for the (1/16" and 3/32")FCAW that we used at 40-45cfh and generally didn't have any coverage issues unless a OH door was opened or a shop fan accidentally turned in the direction of the welding.

Otto Nobedder wrote:We have a great neighborhood here, and we tend to protect it.

No offense is meant to anyone; That's not how we do things. However, we will defend our little corner of the internet,"...

Steve S

I hear ya man...I'm a moderator on another welding forum so I understand completely.

I ran into a situation one time that made me think twice about using SS#'s on welding certifications. I have qualified/certified literally thousands of individuals during my previous employment. One day I was called into the field to review a problem that was associated with our shop's work and here...

LOL... pass x-ray = great welder I've heard the same thing in the structural steel world when a welder passes a UT of a CJP weld. I've seen welds that look absolutely horrible, yet somehow they managed to keep it clean enough to not have any rejectable reflectors. I throw those in the same category ...

the rod angle - when nearing the edge slowly turn the rod in the opposite direction

<---that has helped me as well...keep the arc tight though.

Thanks for all your input John and everyone else. You guys are helping me out greatly. Could some one please explain what causes these tracks in the weld. I have found that the voltage set a bit too high for faster travel speeds led to an increase of seeing those(worm tracks) on the cap/under the s...

The shop I was in was always worried about the cost of supplies, so CO2 was the shielding of choice due to it being cheaper than the argon mixes. It works well with 1/16" ESAB E71T-1 and the like. That small diameter wire (.035) has to really pile up to run passes as large as the OP is posting ...