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"coupons"

Coup has developed in French, gaining numerous senses, participating in numerous phrases, such as coup d'état, and giving rise to many derivatives, including couper, "to divide with a blow, to cut." Couper yielded the word coupon, "a portion that is cut off," So, welding coupons are a portion cut off from the same metal you are practicing to

Actived: 9 days ago

URL: https://forum.millerwelds.com/forum/welding-discussions/14927-coupons

Where to buy coupon bender

09-22-2006, 01:00 AM. We have a coupon bender at school I'll have to wait till I go back on Monday to see if I can find a name on it. I know this thing should be able to bend up to one inch thick and it is also hydrollic driven. Chris. Comment.

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Welding schools cancelled

Weld yer a$$ off, prep coupons cleanly, and pass lots of bend tests on your own. You can most certainly do it. Work for hours at a stretch, work often (welding is a perishable skill), MAKE SURE YOU CAN SEE (current eye exam, etc) and have lots of clear protective lenses for your helmet so you won't be looking through a haze.

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What am I doing wrong

Got some 1/4" flat stock today, and was welding together some coupons. I am getting ZERO penetration, and its like the filler metal is just splashing onto the metal, but without even sinking in. Now keep in mind the metal is just a tad bit damp. dunked them in water so I …

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Another Cooler update

I'm gonna go cut some coupons off the sheet and see how it edge welds. 24ga is tuff (read darn near impossible) for me to edge weld, I normally bend an edge around so that I can do a lap weld. Regards, George Hobart Handler 210 w/DP3035 - Great 240V small Mig Hobart Handler 140 - Great 120V Mig

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How to Remove the Backing Plate

air arc it off or torch it off , and lots off practice. leave a very thin amount and grind off the rest. Im assuming this is for test plate coupons? We even used to chuck the coupon up in the milling machine and shave them off too.

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Just boought a dynasty

Got a pretty good deal @ weldfabulous, Free shipping 2787 plus a coupon code, goog4 which gave me 2% off, which at first I said eh, thats nothing, but it came out to $62 with the torch, tungstens, rccs-14 I think.. and other stuff I ordered with itTotal cost was $3054.

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Welder equipment suggestions

Once you buy from Philips Safety, they start sending you emails with 20% off coupons in advance of major holidays. I just cannot say enough about how much I like their lenses. Last edited by E350 ; 08-19-2016, 01:03 PM .

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helpful hints smaw weld test

Reggie; Thanks, I still don't recall the Run On - Run Off I must be going senial ! I do remember in the Late "70's" doing an Unlimited test ( 1.25" x 12" ) Plates where we cut about 1" off each end with a torch when the test was completed ! We were Welding 8" …

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cwb testing. All position

Tweet. #1. cwb testing. All position. 08-30-2007, 02:49 PM. I have a job lined up to run a mobile rig. I have my pressure,Redseal,Journeymans. For the 4 positions on Cwb, is there any literature on the net about hints and tips besides burn it in hot. lol lol. The shop is certified cwb and will waive the 80 an hour for the inspector and i will

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Bend test with backing plate

Bend test with backing plate. 06-28-2006, 05:55 PM. When coupons are cut out for a bend test and it has a backing plate, is the backing plate ground off, or left on? The specific test is a 3/8" V-Groove 3G with 1/4" backing plate. I am very curious …

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Everlast Welder I have seen the light!!!

The welder shut off, I quickly slipped the switch on it and unplugged it. Checked the breaker box and it had flipped. Turned it back on and checked the outlet with my grinder which worked fine. So reluctantly I plugged the Everlast back in and turned it back on. It immediately made a couple small pop noises to which I flipped it off immediately.

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Help-1 code on new Dynasty

I've got about 36 1/8" steel coupons 2"x3" ready to go when I get back at the welding practice again. If the code does not come up on that batch I'll psychologically be able to write the problem off I guess. Well look at that - it's time to go home again where did the day go

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chosing a welding screen color

With the 20% off coupons they are a good deal. glen, If your not on the edge, your wasting space. Comment. Post Cancel. davedarragh. Senior Member. Join Date: Oct 2007; Posts: 2949; Share Tweet #6. 09-17-2009, 06:20 AM. Welding Curtains The colors are cosmetic, they must all meet industry standards. Reasonably priced curtains/screens are

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Continuing Practice on 1/8" and 1/4" Aluminum

Personally, I think you're better off working with the "free" scrap you're getting. You're (from the photos)past just welding two strips of metal together. There's an old joke amonst us oldtimers that if you just practice on perfect, equal sized coupons, you'll get really good at "welding equal sized coupons" and not much good at welding

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Harbor Freight Tubing Roller

Wait for a sale @ $149. Sign up for emails and they'll start to send you 20% off coupons all the time. If you're patient you can take this home for $119 Just a die for my $2400 JD2 model 4 runs $300(which is a bender NOT a roller) I also bought the HF $49 square tube dies(CNC 4140, not cast) & used my lathe to enlarge for 1" square tubing

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Which Chop Saw for under $200

I have been using a Harbor Freight 10" sliding compound miter saw and a 10" cut-off wheel as a chop saw. It's cumbersome to use and definitely time to get the real deal. Yes, I would love a cold saw or one of the Evolution EVO380 Raptor, Morse CSM14B, Milwaukee 6190-20, or Dewalt DW872 machines, but I don't have the $400 to $500 to spend on

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Harbor Freight Bandsaw mods

Harbor Freight Bandsaw mods. 07-24-2005, 07:39 PM. So, I picked the $170 HF horiz/vert bandsaw. I can see how everyone's first mod is to make the stand less flimsy. However, my main concern is how easy it is for the blade to derail. If I give the work a bit too much pressure, the blade comes right off.

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Welding Test Help

Make sure you grind or buff off all of the mill scale from the weld area before you put the parts together. I didn't do that, and when the coupons were bent to the root side there were a number of little spots where the plates joined the backup strip that opened a …

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purging stainless pipe

Tweet. #3. 11-02-2012, 06:41 AM. Take a regulator off a machine your not using along with its hose, stick the hose in the pipe, and seal it off ( Foil tape will work ) Then cap the opposite end and put a hole in the cap about the size of your purge hose and keep it flowing while you weld. Comment.

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Dirty MIG Wire

The coupons I have been practicing on are clean enough to Tig. I have tried adjusting the voltage + or - 1 volt around the recommended 17 volts and the wire speed between 245 and 190. I am running 75% Argon 25% CO2. I have also tried changing the gas flow + or - 5 cfh centered around the recommended 25 cfh.

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Weld Test

Well once again work has to thrown a curve ball at me yesterday at 1:30 pm the QC comes by and drops two sets of coupons off on my tool box, one test is 6010/7018 2" SCH 160 and the other is SS TIG root and stick fill and cap. Once again, QC right back at ya passed both tests again. 17 years Have not missed a test or a X-ray weld yet.

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Which Chop Saw for under $200

I gotta pick up some more lighting for my shed, so I'll have one more look at the Dewalt vs. Rigid while I'm at the big orange box (I admit I'm a sucker for their 10% off coupons). While I'm out, I'll have to drop by the other big box (Lowe's) and check out the Hitachi in person if it's in stock. I'll have to wait until Monday to find a Makita.

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Quenching mild steel

Tweet. #4. 12-15-2009, 09:06 PM. Have him weld up two coupons say 3/8" mild steel butt weld 7018 1G position. Have him dunk one in water and the other left to cool naturally. But don't bend them or at least save two section from each piece to have them pulled in a tensile strength machine.

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Bending out, 1 of 3 accomplished.

At Tulsa welding school, I have one week left, and bending out is a must if you expect to graduate. I will post pictures later of my 4 bent out coupons that I accomplished on my first try for this weld 6" pipe 5G 6010 root pass 7018 hot pass 7018 fill 7018 weave cap I have these two left which is much easier for me for some reason 6" pipe 6G

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aluminum and spatter

aluminum and spatter. 12-03-2007, 12:35 PM. Hi Guys, (and Gals) I have a 30A spool gun on my 250. I will be welding 1/8th to 3/16th and id like to know what i can do to minimze spatter. I seem to be getting lots of carbon and white residue on my welds as well as a brilliant spark show. The weld arc doesnt seem to be hissing as it should, its

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Muratic Acid

Then I put a couple of coupons that had some rust and mill scale on them in there and in about 3 minutes they were clean as a whistle I know it was good to take oil, rust, paint or whatever off and left the metal ready to paint. It would make shiny metal, like where it was ground, turn milky color. Jim. Comment. Post Cancel. Sober_Pollock.

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Needle scaler for chipping slag.

Needle scaler for chipping slag. 11-11-2013, 12:19 PM. I just bought and used my first needle scaller after 25 years of business. All I can say is wow I have been missing out. I should have had one years ago, It gets into places that only a sand blaster can reach. I can see where it would have come in handy for more than just chipping slag.

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Help With CWB Bend test GMAW

Help With CWB Bend test GMAW. 07-28-2007, 08:32 PM. Hi I am currently in a welding school. I have my all Position CWB STick and flux core flat ticket and am going to test for my MIG Flat position in 2 weeks. thing is that my instructors say that there is a 85% fail rate for this process. They teach the push teqhnique in school, but i have read

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question about building a trailer

I've seen weld coupons signifigantly thicker than 1/4" done by very skilled welders that passed bend tests and etchings. V groved, preheat, multi pass, but the average owner of a 110v mig can't even hope to perform at those levels. As with all rules there are exceptions, I'm glad you are one. And definately yes, common sense isn't so common any

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Trouble with welding square butt joints in school

When you prepare your "coupons" (the strips for bending), do you round the edges of the plate? Depending on the code that you're welding to, you may be able to round them with a 1/2 thickness radius. Also, some codes will allow the inspector to make a call as to whether the coupon cracked, beginning at the edge of it, and that a sharp edge

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Using water submersion to keep work cool/straight

Not sure what brought the thought on - perhaps it was the youtube'r who was failing at keeping work from warping on long welds in thick materials. On an automotive forum I saw a guy who installed a roots supercharger on his BMW inline 6 shooter. To get the crank hub/pulley combo to work, he simply parted off the crank hub from

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Miller Dynasty 200 DX

These are about 2" long beads on .06" 304 SST coupons. None off welds were brushed after. used acetone to clean both sides (and filler) Weld #1 - Just getting used to that smaller filler - looks like I cooked a bit and washed out in the middle.

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Hobart or Miller

My opinion. In that size machine no need to spend the extra money for a Miller. The Hobart machine will do him fine. They are a quality unit & can be purchased cheaper sometimes with store coupons such as at Tractor Supply which usually runs a 10% off every few months. As you have already found out they both have very good feedback from owners.

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certification

Re: Plasma: Is that to ensure the person being tested knows to take the dross off before butt welding the coupons? We had an ironworker at school for dicing coupon stock, and my instructor was also a CWI. Plasma doesn't make much sense.

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Problems with TIG weld quality on steel

Make sure the steel wool is wiped off, as well. With the proper amperage, it would only take a matter of seconds to fuse those rods together. If you can get some flat bar stock (2" wide) they make for great practice coupons. Keep in mind, if it's got mill scale on it, (like A-36) you'll have some issues as well. TIG doesn't like mill scale.

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Beginner help

Same with plate postion welding, you would cut 2 from each position, horizontal, vertical and overhead and do bend tests on them. A lot of companies and construction jobs require you weld up "coupons" to prove you are a capable welder. Any shop with an ironworker machine should be able to run you off a bunch of 2x4 or 6 inch coupons easily.

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RMD and Pro Pulse

An optimized solution is the RMD program on either the Axcess which is a wire feed only machine or the Pipepro 450 RFC. Both have RMD, the pro 450 has propulse and the axcess has accupulse as well as accucurve for aluminum and stainless. Accuspeed for high travel speeds (70 ipm+) Regular pulse, spray transfer and short arc.

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Anyone adapted the 100 series spoolgun to the 175 yet

I was primarily playing with 1/8" flat bar coupons and also some 1/4" I had kicking around. I was running harbor freight 0.030 4043 wire and used a stainless wire brush (manual) for prep. On both the 1/8" and 1/4" the 175 w/ spoolmate was able to make great looking, good penetration welds with almost no spatter, tig looking at times.

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Dynasty 200dx

-current @ 115 - 125 amps ( my coupons are 1/8" aluminum) - Pulse off - Frequency set at about 120 hz. I have tried above and below this but it seem to be best in this area - 5356 filler rod (3/32). I have 4043, but it looks terrible as I mentioned I have attempted both running beads on top of the material as well as fillet welds.

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Anyone used a Victor *Gouging* tip

11-01-2009, 07:26 PM. I picked up a 118 series gouging tip and have no idea what pressures I should be running it at. All I know is cutting tip pressures and I've never used an actual gouging tip. If anyone can save me some time experimenting and/or pass along their recommendations, it would be a big help. Tip# is 2-1-118 if anyone's got a chart.

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Welding wire strength in relation to base metals, weld

If I take two plates (or two sections of tubing) and do a butt joint (assume I grind down the plate edge/tubing edge to allow for full penetration of the weld), then section off a couple coupons, I'm aware of two tests for strength: one is where I bend the coupon to ensure it doesn't fail at the joint, the other is putting the coupon in tension

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4043 vs 5356 on Dynasty 200

1. Both welds using 80% balance. Weld on the right is 4043 and the weld on the left is 5356. Also, there are black specs in the weld on the left. 2. Both welds are using 65% balance and 5356 filler. Weld on the right seems to be somewhat shinier than the weld

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Sour spec weld code

On 2" sch 40 I use 3/32and go just fast enough to fill a little below the bevel edge for the hot pass. On the bigger pipe you can use 1/8 as the pipe can handle more heat. I usually stop part way around to clean the slag off the start point , even if I can make a complete pass with one rod.

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Finishing Tig weld

I welded up a handful of SS304 .125" x1" coupons this evening. I used the Maxstar 150 STL and a #17 torch w/o a remote. At the end of the weld I finished out the last of the puddle and dragged the torch onto a copper strip positioned at the end of my weld and pulled the arc off the copper strip.

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Air powered Cannon

Air powered Cannon. 08-28-2009, 06:56 AM. I am going to try to post some pics of an air powered tennis ball cannon. It is made from stainless tube. It will put a tennis ball just shy of the stratosphere ha! The air can be regulated down for the little kids too, they all like to try and catch the tennis ball coming down.

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New Member: Dynasty 280 DX Powered off Miller Bobcat 250

My local supplier supplied me with a new Dynasty 280 DX to demo off my Bobcat 250. This particular supplier is the local Miller repair shop, as well. One of the gurus is an engine drive expert and I brought a buddy familiar with operating a Dynasty 350 at his day job to watch the Dynasty as I welded a bunch of different coupons I prepared for

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Dynasty 200DX

Dynasty 200DX - 1.5mm aluminium - settings. 01-03-2011, 09:22 PM. First of all a quick hello, as this is my first post on the Miller site. I am based in the U.K. and am a keen motorcyclist, and amateur fabricator of all things conected therewith. My current project is a 1989 Harris F1, here's a photo of the 'bike when I first got hold of it:

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