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Stitch weld? a bit unclear

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发表于 2021-9-1 00:11:15 | 显示全部楼层 |阅读模式
I've noticed many times the term "stitch weld" has been mentioned and  shown in detail from great pics.   I am a bit confused as I have always thought it was like a second pass and so on.     My question is.......Is this "stitch weld"    more than a second pass?       Is it a special  type of weave technique thats criticle to the first pass?   Anyway Im all ears here.    Look forward to the wisdom of the round table weld it like you own it
Reply:Some call it "Walking the cup"I call it "Stitch" welding..So you state you have seen the pics...So whats the problem?Do a root..Then "zig zag" back in fourth and leave the stitch "dips" in the center of the root weld spaced every 1/16"..Its not so hard...Practice Practice Practice......zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:The easiest way I can describe it is, weld a couple inches, skip a few inches, weld a couple inches, skip a few inches ect...... Basically your just welding a part together, without welding 100% of the area that could be welded.
Reply:A stitch weld is when you weld for short distances and leave spaces between.  For example a weld symbol instruction might call for two in six.  You would lay down a bead two inches long then leave a space of four inches then start another two inch weld.  The six is the pitch or distance from center to center or beginning to beginning of each stitch weld.  In autobody or light gauge welding often people will say to stitch weld the unit together.  They are telling you to not weld the seam continuously.  Stitch welding reduces the amount of weld which reduces distortion and buckling.  Also why overweld if a continuous weld is not required?  The answer is to stitch weld.
Reply:Sorry Lewray, I think I missunderstood the ?
Reply:Originally Posted by lotechmanA stitch weld is when you weld for short distances and leave spaces between.  For example a weld symbol instruction might call for two in six.  You would lay down a bead two inches long then leave a space of four inches then start another two inch weld.  The six is the pitch or distance from center to center or beginning to beginning of each stitch weld.  In autobody or light gauge welding often people will say to stitch weld the unit together.  They are telling you to not weld the seam continuously.  Stitch welding reduces the amount of weld which reduces distortion and buckling.  Also why overweld if a continuous weld is not required?  The answer is to stitch weld.
Reply:Originally Posted by 72sportySorry Lewray, I think I missunderstood the ?
Reply:lotchman seems to be on the ball. well said
Reply:oops yeah duh!!    Stitch welding yeah I know weld a few mm or maybe an inch or so then  leave an equal amount of space after  each consecutive weld.   Ok  I  had a brain fart................  But it seems I may have got it confused with a with a weave pattern I saw on some pics.    I Quess my question should be what would a good second pass consist of ? weld it like you own it
Reply:I think Zap understood what it was I was I was trying to describe.    The best example that comes to mind was the pressure washer repair that Zap posted awhile back.  The "second pass" was called a stitch weld ...if I recall it.  Thanks for the input. weld it like you own it
Reply:Originally Posted by zapsterSome call it "Walking the cup"I call it "Stitch" welding..So you state you have seen the pics...So whats the problem?Do a root..Then "zig zag" back in fourth and leave the stitch "dips" in the center of the root weld spaced every 1/16"..Its not so hard...Practice Practice Practice......zap!
Reply:Ah, but can you lace a stich or stich a lace?  Good post for those of us not in the know!ThermalArc 185MillerMatic 180 w/ AutosetVictor Cutskill Oxy/AcetyleneThermal Dynamics Cutmaster 38and spite!
Reply:72 explained a stich, zap explained a weave (what you were asking about)
Reply:Stitch welds as I know them refer to the placement of specific length welds placed along the same joint at specific intervals. This is where you would see the L-P (length and pitch) in a weld symbol. Weaving, lacing, walking the cup.... are all terms that I have heard which refer to the manipulation of the torch to create a particular weld appearance._________________Chris
Reply:The term "Stitch" welding is not defined by the American Welding Society (AWS).  The AWS uses the term "intermittent" weld to describe "a weld in which continuity is interrupted by recurring unwelding spaces".  Slang terms, "stitch", or "skip" welding are often used to refer to an "intermittent" weld."Weaving" or "oscillation" are AWS terms used to describe a side-to-side torch motion.
Reply:Hey Pulsar great response.  Osillation  and weaving those are the key words.And hence that would be a 2nd pass.  I knew that "stitch" weld was a ....lack of a better word here, fundemental term, as we disscussed allowing space between welds.  I'm just making more of it; however, thats why folks use street slang.  Again good response pulsar. weld it like you own it
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