Tapered MIG tips???

admin

Does anyone use the tapered MIG gun tips vs. the standard type?  What's the purpose and is there really any STRONG benefits to using them?Thanks in advance.Lincoln Power Mig 216Lincoln AC/DC-225/125Miller  625 X-Treme PlasmaMiller 211 Forney 95FI-A 301HF 91110Victor Journeyman O/PMilwaukee DaytonMakita  Baileigh NRA Life Member
Reply:See gas mix thread.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.
Reply:Originally Posted by SundownIIISee gas mix thread.
Reply:Originally Posted by SuperArcDoes anyone use the tapered MIG gun tips vs. the standard type?  What's the purpose and is there really any STRONG benefits to using them?Thanks in advance.
Reply:Tappered mig tips and nozzles are for getting into tighter places.Better to have more material thickness in the tip than less.
Reply:Originally Posted by ApplesTappered mig tips and nozzles are for getting into tighter places.Better to have more material thickness in the tip than less.
Reply:I use tapered tips and nozzles for welding root pass on pipe.  As someone else mentioned they make it easier to get into narrow groove openings and maintain the right stick out.  For pipe with wall thickness over 3/4" they start becoming very handy.  For really heavy wall pipe(>1"),  that has a compound machined bevel, they are almost a necessity.  see attached picture. Originally Posted by SuperArcDoes anyone use the tapered MIG gun tips vs. the standard type?  What's the purpose and is there really any STRONG benefits to using them?Thanks in advance.
Reply:Originally Posted by A_DAB_will_doI use tapered tips and nozzles for welding root pass on pipe.  As someone else mentioned they make it easier to get into narrow groove openings and maintain the right stick out.  For pipe with wall thickness over 3/4" they start becoming very handy.  For really heavy wall pipe(>1"),  that has a compound machined bevel, they are almost a necessity.  see attached picture.
Reply:Photos of standard nozzles and tips VS tapered gear.Tweco parts.... Attached Images
Reply:Originally Posted by ApplesPhotos of standard nozzles and tips VS tapered gear.Tweco parts....
Reply:I use mostly Bernard guns and consumables.Take a look at this page from the Bernard Website:http://www.bernardwelds.com/products...ble_parts.htmlI use 'T' series tips for fill and cap welding on pipe, or for general purpose fabrication.  I use the 1/2"(~13mm) or 5/8" ID(~16mm) nozzles with this tips.  Which nozzle I pick depends on my gut and what I'm trying to weld and how hot the welding is going to be.  Not on any hard and fast rules.I use 'TT' series tips and 3/8" ID(~10mm) tapered nozzles for root pass welding.  I imagine these would also work better for welding inside corner fillets.  But they tend to clog up with spatter faster, and they don't dissipate heat as fast....On the joint I showed a picture of above, there's just enough room for a tiny weave motion with the tapered tip/nozzle and about 10mm of stickout.  So long as spatter doesn't build up and short the tip to the nozzle, you can get down inside that joint and weld the root pass.I've also seen nozzles with the sides cut away.  These make the width of the nozzle about 8mm.  But you can only use them in narrow grooves, as the walls of the groove serve to keep the shielding gas in place.  Out in the open these cut away nozzles don't give adequate shielding gas coverage.Not trying to sound like a sales pitch, but all these nozzle and tip combinations are possible with any of the Q guns that Bernard makes.  It's a big reason why I like their products.  Some folks have told me they have to clean spatter from the bernard nozzles more often, but I've never had a real issue with this... Originally Posted by Ed.Hey A DAB, it looks like my understanding of tapered tips might be different to everyone else's, to satisfy my curiosity, just how wide are these "tapered nozzles and tips" ? I have 2 MIG guns (400A and a 350A) and both nozzles are about 20mm across at the tip and my smallest nozzle is on a very tiny North 180amp gun, and that nozzle is still 16mm across at the tip, so exactly how wide are these tapered nozzles that you guys are talking about that can fit inside a  14.2mm gap , as shown in your image and what amperage can they handle? Or am I missing something??? I have never done pipe work that thick, most of the 1" plate that I have welded has had a nice big "V" ground or cut out, so never had an issue of getting a weld to the bottom with the nozzles I use.
Reply:Ed what type of gun do you have?  Bernard 300 Amp?  do you use the 4391 nozzles?  if so the 4392's are the tapered ones.  The diagram that was posted is for the "centerfire" range of bernard and nozzles and tips.  You may not have these on your machine, maybe?
Reply:I had the tregaskis from Radnor, PA swallowed up my LWS and every LWS for 50 miles consumables for the tregaskis stuff became Unobtainium. guns like the Bernard like A-Dab was talking about.   Unfortunately When the green giantVantage 500's LN-25's, VI-400's, cobramatics, Miller migs, synch 350 LX, Powcon inverters, XMT's, 250 Ton Acurrpress 12' brake, 1/4" 10' Atlantic shear,Koikie plasma table W/ esab plasmas. marvel & hyd-mech saws, pirrana & metal muncher punches.
Reply:Originally Posted by ApplesEd what type of gun do you have?  Bernard 300 Amp?  do you use the 4391 nozzles?  if so the 4392's are the tapered ones.  The diagram that was posted is for the "centerfire" range of bernard and nozzles and tips.  You may not have these on your machine, maybe?
Reply:[QUOTE=A_DAB_will_do;397678]I use mostly Bernard guns and consumables.Take a look at this page from the Bernard Website:http://www.bernardwelds.com/products...ble_parts.htmlI use 'TT' series tips and 3/8" ID(~10mm) tapered nozzles for root pass welding.  I imagine these would also work better for welding inside corner fillets.  But they tend to clog up with spatter faster, and they don't dissipate heat as fast....On the joint I showed a picture of above, there's just enough room for a tiny weave motion with the tapered tip/nozzle and about 10mm of stickout.  So long as spatter doesn't build up and short the tip to the nozzle, you can get down inside that joint and weld the root pass.QUOTE]Hi "A Dab will do". These are the sort that I will try and get, especially for doing the inside corner weld on a sharply angled RHS section, most of the runs are less than 2-4 inches, so splatter won't be too much of an issue, I can always clean the tips after each section. How many amps and volts can these 3/8" mig tips and nozzles handle? Much easier to clean out a nozzle than to fix up a crappy weld inside a tight corner because I couldn't get my 20mm nozzle in there and had to have to have a very long stickout.Miller Auto Invision 456 + S-62 wire feederC6240B1 Gap bed lathe16 ft3 air compressor16 speed pedestal drillHafco BS-912 Bandsaw
Reply:Those other taperd tips and nozzles were for a Tweco no.4 gun.  I had a person who was in the same situation,  needed to get into a tight space.
Reply:Originally Posted by Ed.How many amps and volts can these 3/8" mig tips and nozzles handle?
Reply:Originally Posted by A_DAB_will_doThose tapered tips and nozzles are fine for short circuit MIG, 0.045" dia and smaller filler metal.  I use them with 0.035" solid wire and 0.045" solid wire and metal cored wire all the time.  I only use them for the root pass on open root joints.  For this purpose they work just fine.  I don't know how well they'd work for fillets or fill and cap passes, where a lot more of any spatter is bouncing back at the gun nozzle...I do not recommend using them with any kind of spray arc or globular transfer.  You'd have to contact someone at Bernard customer service to get specifics about how much amperage/heat they can handle.
Reply:Originally Posted by ApplesThose other taperd tips and nozzles were for a Tweco no.4 gun.  I had a person who was in the same situation,  needed to get into a tight space.
Reply:SuperArc - Yes, for discrete applications only;  and no.    Opus
Reply:Thanks Apples, Ed. Opus, Dab-will-do and others.........  Now I know.   I need to get some!  I could have used them myself on some pipe.Lincoln Power Mig 216Lincoln AC/DC-225/125Miller  625 X-Treme PlasmaMiller 211 Forney 95FI-A 301HF 91110Victor Journeyman O/PMilwaukee DaytonMakita  Baileigh NRA Life Member