adding pulse

admin

We are adding new pulse boards to 12 of out miller syncrowave 250DX GTAW machines. what my question is, we vary frequently tack weld our products. is it worth installing these boards when we are mostly tack welding? We have 2 machines set up already and I really have not seen any difference in strength or appearance. any comments or suggestions would be greatly appreciated.
Reply:Geeze, I read the title & thought CALL 911!!!!!!then I read the reply & have no idea how to help ya.  Others will though, have patience.MarkI haven't always been a nurse........Craftsman 12"x36" LatheEnco G-30B MillHobart Handler 175Lincoln WeldandPower 225 AC/DC G-7 CV/CCAdd a Foot Pedal to a Harbor Freight Chicago Electric 165A DC TIG PapaLion's Gate Build
Reply:I have pulse on my Thermal Arc tig machine but I never use it for anything.  If the pulse feature up and died today I'd never miss it.  If all you're doing is tacking, I don't see how pulse would help or be worth spending the money on the upgrade.MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op
Reply:Your LWS has a really good salesman, and your engineer probably doesn't weld.A butterfly without wings, is just an ugly bug
Reply:I have pulse on my Tig and I rarely use it. I dont think it is that great. When I turn on the pulse I always have to run higher amps to get the same penetration.The only time I can see it being good to use, is for a beginner. They can turn the PPS down it something like .5 PPS or 1 PPS and it helps with a beginners timing on dipping the filler rod.
Reply:Most of my work is with light gauge .060 - .045 chromolyb, SS, so we use pulse tig quite a bit for less degredation of alloys. If all your doing is fuse tacks, less then .25 long (lot of people have differant views on tacks), then pulse tig isnt goin to be that great and if its Al then pulse tacks are worse. The pulse will take a bit to really get used to but it can be quite beneficial.The only other thing i can say is we have both the pulse miller syncrowaves and pulse Lincoln tigs. I gave my miller (with pulse board),up for the lincoln because the pulse was so much smoother and was told that the millers pulse backgound current is based of the set max current, unlike the lincolns background current which goes of used current. Not sure how true that is, but something to keep in mind.
Reply:If all you do is tacking you want this [ame]http://www.youtube.com/watch?v=YvYSq_HbiSU[/ame] It's a spot weld setting, I use it all the time at work and it leaves a perfect tack behind. Reguarding pulse, I've got two types of pulse settings on my kemppi mastertig mls 3003 ac/dc at work. First setting is the regular pulse where you just set all your preferences like peak amp, freq, peak time etc. The other setting is called "synergetic". It's defined as a short pulse setting. I've found that it comes in real handy when welding thin materials. It lowers the heat input quite abit. And it also gives more penetration when welding pipes with a small gap. Only down side is that it makes an annoying buzzing sound like when welding with AC.Last edited by Speen; 03-06-2009 at 05:54 PM.
Reply:Touch start?Looks like a staple gunDavid.Real world weldin.  When I grow up I want to be a tig weldor.
Reply:No, high freq. It's a mode where you can adjust your weld time. So it will not be active longer than i.e 0.1s when fired.
Reply:That Kemppi TIG tacking video is exactly what I tried to describe in these old posts.You can do this with a quick on/off of the foot pedal, or better yet with a timer.http://weldingweb.com/vbb/showthread.php...highlight=tackhttp://weldingweb.com/vbb/showthread.php?t=12987http://weldingweb.com/vbb/showthread.php...t=wire+welding
Reply:Ok, I have an update on what is going on with the pulse going in our miller syncrowave 250dx machines. After doing some research, I found an article on millers website that talks about the barrett firearms manufacturer using an "advanced pulse technology" dynasty 350. from what i understand the dynastys can do up to 5000pps. the pulse boards that we are installing has a maximum setting of 10hz on pps control. as you may have guessed, i am very new to pulse. what this says to me is that it pulses at 10 pps max, am i correct in saying that? also, does anybody have any safety concerns, or information on using pulse in general or for the style of pulse we are using since it is pulsing so slow? I have used a lincoln pulsed tig in the past and it seemed to pulse so fast that is couldnt be seen and the sound that it produced was aywhere from a loud hum to a scream. is there an extreme difference in the technology used in these welders? Thanks in advance.
Reply:10 Hz max sounds more like its for Tig.Otherwise ya got me!DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Yes, these are TIG's
Reply:Mbarone,I've been using Sync 250's for probably 25 yrs.For the type of work you're doing, which involves a lot of tack welds, I really see very little use for the pulser.  It's not an expensive option (around $200 for the board/10 min to install), but money's money.I use the pulser quite frequently on steel, to keep the overall heat down, but rarely use it at all on aluminum.  There again, I'm using a bump technique a lot of the time, and that's a manual form of pulsing.The pulse, set very low can be an excellent training tool for new tig welders.  Helps in developing the rythem.(timing).I'm sure the powers to be at your company have something in mind for that equipment.  That or a smooth talking salesman sold them something they really don't need.Syncro 250 DX Dynasty 200 DXMM 251 w/30A SG XMT 304 w/714 Feeder & Optima PulserHH187Dialarc 250 AC/DCHypertherm PM 1250Smith, Harris, Victor O/ASmith and Thermco Gas MixersAccess to a full fab shop with CNC Plasma, Water Jet, etc.