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' recessed ' and ' flush ' tip..........the big three come with flush tip , wonder why the $4000 snap-ons at work hav no problem with thin 26 even 30 gauge while u struggle on 24. This and a few other things. Experiment and you may find it's like having xtra lower tap settings. Attached Images thermal arc 252i - millermatic 350P - miller XMT, cp300ts, 30a 22a feeders, buttload of other millers, handfull of lincolns, couple of esabs - Hypertherm 1250 G3
Reply:I found one very real factor with weld consistency for my overhead cert after a frustrating month of "practice" with no real improvement to be grinding down the nozzle so my contact tip protruded just a hair. Stock it was recessed about 3/16". Although not applied to "thin" metal exactly, the effect of this change allowed me to complete my D1.1 4G test/Last edited by wirehead; 09-26-2011 at 08:49 AM.XMT304 (school)SP125+ (home)HF 4x6 BandsawGood judgement comes from experience and much of that comes from bad judgement.
Reply:the 'rule of thumb 3/8" stick-out is vague wen you think about it. 3/8 stick-out from the nozzle or the contactor .? (noobs usually quik glance @nozzle).. 3/8 stick out is super duper bitchn great for thick stuff , but paper thin stuff ? , further and even up to 3/4 stick out FROM CONTACTOR TIP.........now u CANT be 3/4 away from your 'gas sheilding' nozzle , duh. So 1/4" recessed feels like you got even lower settings you only dreamt of on thin gauges.....but makes your welder a piece of turd squat shti on thick stuff. Ther-in complexly lies one of the complexities to the noob mig brain. thermal arc 252i - millermatic 350P - miller XMT, cp300ts, 30a 22a feeders, buttload of other millers, handfull of lincolns, couple of esabs - Hypertherm 1250 G3
Reply:what are you talking about? you aren't making any sense.
Reply:Originally Posted by Scott Youngwhat are you talking about? you aren't making any sense.
Reply:He's talking about using a long stickout, but because the tip is recessed you still get decent gas coverage. No big new thing, I see it all the time with students and the Tweeco guns on the schools XMT304's where you can slide the nozzles out so the tips recessed rather than flush. Usually with them it's the reason they are getting a "cold" weld with a machine that was set just fine a short bit ago..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:Generally, recessed nozzles are used for spray transfer to get adequate shielding since the stick-out for spray is on the order of 3/4". For short-circuiting transfer (which you are certainly using for auto-body sheet metal) you would want to use a flush nozzle, or even one where the tip sticks out 1/8" or so. Since the stick-out for short arc is more like 3/8", using a recessed nozzle would be an exercise in frustration.Just a matter of using the right tool for the job.JohnA few weldersA lot of hammersA whole lot of C-clamps
Reply:Originally Posted by DSWHe's talking about using a long stickout, but because the tip is recessed you still get decent gas coverage. No big new thing, I see it all the time with students and the Tweeco guns on the schools XMT304's where you can slide the nozzles out so the tips recessed rather than flush. Usually with them it's the reason they are getting a "cold" weld with a machine that was set just fine a short bit ago.
Reply:Originally Posted by Silicon-basedGenerally, recessed nozzles are used for spray transfer to get adequate shielding since the stick-out for spray is on the order of 3/4". For short-circuiting transfer (which you are certainly using for auto-body sheet metal) you would want to use a flush nozzle, or even one where the tip sticks out 1/8" or so. Since the stick-out for short arc is more like 3/8", using a recessed nozzle would be an exercise in frustration.Just a matter of using the right tool for the job.John
Reply:lol that made great scene good tipLincoln Power Arc 4000 Thermal Arc Fabricator 252 iThermal arc 186Thermal Arc 26 tigTweeko 200 amp spool gunHobart AirForce 400WP-17V-12R |
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发表于 2021-8-31 23:23:33