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发表于 2021-8-31 23:51:23 | 显示全部楼层 |阅读模式
it seems to me its gettin better..just the 5 stringers on the right, the left is old ..first 3 on left are 3/32 7018 85 amps. last few on right are 1/8 7018 120 amps, all on 3/8 ms..i set this up higher and did it standing..some of the bad spots are recoveries from slipping on the ice..was trying to put one stringer 35% to 50 % over the one to the left of it.. Attached Images
Reply:Its easier to weld a groove or fillet when going up.  Plain ol stringers on plate are a bitch for me.  Looking good, keep at it!David Real world weldin.  When I grow up I want to be a tig weldor.
Reply:"Any day above ground is a good day"http://www.farmersamm.com/
Reply:Originally Posted by David RIts easier to weld a groove or fillet when going up.  Plain ol stringers on plate are a bitch for me.  Looking good, keep at it!David
Reply:It seems like I read somewhere on this forum that hot and fast is better for vertical welding, just the opposite of what I would have first thought. Going fast would make the base material cool the puddle faster preventing it from running out.
Reply:Hot and fast for vertical down.  Low and slow for up.David Real world weldin.  When I grow up I want to be a tig weldor.
Reply:Not bad your getting better.What was the thickness of the metal pieces?? Did you have pictures of the back of those pices as well? So from what I got reading you did this outside on freezing cold metal? If so try breaking the two pieces and take a picture.Last edited by specter; 02-02-2009 at 09:32 PM.Co-Own CNC shop:Miller :1251 plasma cutter, MaxStar 700 TIG/Stick, & XMT 456 Multiprocess Welder.&  2 Hypertherm HPR260's Plasma CutterSorry I had a bad stroke but now I am back.
Reply:Ditto on welding stringers on a flat plate.  It's a Bit**.  Try some fillet welds, or butt groove welds.  If you have 1/2" plate, cut some coupons to practice with, bevel to at least 30 degree included angle.  To begin with these coupons, grind a shoulder at the bottom of the Vee and leave no gap.  After some practice, open the plates and leave a gap the thickness of the rod (usually 1/8" on root pass)  and leave a shoulder of at least the rod thickness you are using.  As you start to weld you will notice a "key hole".  With practice, you'll produce a great weld that has what looks like a "mini bead" on the back side of the plates.  This is full penetration and a good weld.If material is thin, it will heat up too quickly and give you bad results.Looking good, keep up the practice.
Reply:paweldor, when you say a shoulder you mean what the bible calls a "land"? a flat spot atr the bottom opf the bevel?
Reply:Originally Posted by David RHot and fast for vertical down.  Low and slow for up.David
Reply:Definitely getting the hang of it.  All you need is some more time behind the hood to perfect it.  As mentioned groove welds will be easier, and you will be faced with them alot more than a bead on a flat plate.I'm a Lover, Fighter, Wild horse Rider, and a pretty good welding man......
Reply:CLAMS!! C - CurrentL - Length of arcA - AngleM - Movement of rodS - Speed of travelLoogs like you have it all except the constant speed of travel.
Reply:i set out to make some beveled coupons as several of  the guys here suggested i should work on some grooves or fillets   and get away from flat plate.  decided to try to get my bandsaw to cut  some  bevels rather than me hold the grinder. i sliced down through some angle to get 2 pieces per cut. i realized after it started that since one leg of the angle is 90 degrees from the other the 37 degree  saw angle i set would cut a 53 degree angle on that leg..it worked well enough that i am able to reverse the pieces and get two v grooves to weld, only grinding is to put a land on the cut edge( and take off the galv).  for some reason the blade did not cut straight all the way down but  near the bottom it wandered out a little...gonna get some lunch and self medicate for a sore knee, hope i get back out there and burn some rod today....45 degrees and snow is meltin.. Attached Images
Reply:Hi Weld Bead,Keep it up and you will get it down. LOL ! Some how that makes sense. One of the most common mistakes I see from inexperienced and even some welders who have years of hood time is the lack of control when welding. I find body position can help you gain control over your weld. I work in industrial (power plants, refineries, chemical plants). Every day i am confronted with different situations that are sometimes very difficult. Sometimes tig welding with a mirror to be able to see the gap in the pipe that is going to be x-rayed. Other times  it might be rigging some 15,000 lb. pipe and squeezing it in a tight spot a 100ft in the air. I find no matter what situation comes up the very first thing i do is think how i can gain control over it.What does any off this have to do with you running some beads out on your icy lawn? Let me see if i can explain:  I can see that a lot of the beads are not straight. I know your just practicing and it is icy, etc.... Practice is just practice. Right? Well kinda! If I was teaching you to weld I would discuss getting in control of the situation that is in front of you first. Then I would show you how to practice completely.Getting control is simply thinking about how your going to make a good weld, what steps it will take, how can I make it easier, what can go wrong, how can i get the proper rod angle,safety, etc.... After making thousands of welds you become robot like and everything is automatic. When you are new these are very good things to ask yourself.If you find that conditions are not favorable to you, Make them more favorable. When you start welding keep everything in a straight line. If your first bead is crooked take a grinder and run a straight line cutting the wavy part off and creating a groove to follow. If conditions are bad such as ice, etc... and you can not get a good steady body position tack a piece of metal or use vice grips so you can brace your forearm in a comfortable position. Once you gain control over the situation you can get better rod angle and adjust your weld speed according to your heat. Don't be afraid to try things out of the norm. I see a lot of welders just use their elbows to brace and sometimes they lose control and it makes welds much more difficult than they ought to be. Your heat dictates the travel speed. If you are in control you can overcome too hot or too cold by adjusting your travel speed. This is a lot easier to do when you are comfortable and more steady. Practice completely. The key to making a good looking weld is knowing when to stop when you start making a bad looking weld. Makes sense to me. Being around many new welders in my carer I have noticed one thing. When it starts going bad they keep going. I often wonder why. What i would suggest is when things start going bad (lumpy, crooked, burn thew, etc..) stop and fix it. Do Not Keep Going. Remember you are trying to make a nice good weld. Stop and grind the bad area and begin again. I know it is a big pain but you will be a way better welder in the long run if you can fix your welds. This is a big part of practice. Repair is a essential part of making a good weld for beginners especially. Hope these tips help WeldBead.Last edited by WeldingSchoolGuy; 02-08-2009 at 02:42 PM.Basic and advanced welding information at my online Welding School.
Reply:Originally Posted by weldbeadi set out to make some beveled coupons as several of  the guys here suggested i should work on some grooves or fillets   and get away from flat plate.  decided to try to get my bandsaw to cut  some  bevels rather than me hold the grinder. i sliced down through some angle to get 2 pieces per cut. i realized after it started that since one leg of the angle is 90 degrees from the other the 37 degree  saw angle i set would cut a 53 degree angle on that leg..it worked well enough that i am able to reverse the pieces and get two v grooves to weld, only grinding is to put a land on the cut edge( and take off the galv).  for some reason the blade did not cut straight all the way down but  near the bottom it wandered out a little...gonna get some lunch and self medicate for a sore knee, hope i get back out there and burn some rod today....45 degrees and snow is meltin..
Reply:welding school guy..many thanks for the help, very much appreciated. aint it the truth about keeping going wehen its gone wrong...i t hink i keep going even when i know its crooked etc because it is still such fun to watch puddle...i think thats it..just a pig in a garbage can...duane55-- i was trying to get a 37 degree angle,(75 in the vee),  got the 53 by  dint of 90 degree accident...next time will probably just do it with a grinder..burnt a bit of rod... 1/8  6010, dcep, 75 amps/very excited because i got my very first keyhole...i just kep depositing metal and whipping up to let it cool..neat to watch it..first foto--my keyhole2nd / 3rd foto..backside... actually got a bead comin throughsincere thanks to all who offer help.. Attached Images
Reply:You have the ambition, and determination. You will get it.  Time behind the hood is what is next.  Just keep at it and you WILL have it.David Real world weldin.  When I grow up I want to be a tig weldor.
Reply:when i started a year and a half ago at BOCES welding course i remember my instructor would often comment on the fact that my beads were not straight....  soapstone lines were encouraged...  i wonder if  its all the dead shows i went to....?
Reply:I heard once on Paul Harvey welding causes brain damage. I use that excuse for my crooked welds.Basic and advanced welding information at my online Welding School.
Reply:Weldbead,I admire your attitude and determination!  Stay with it, (your yard reminds me of my past life in Alaska)WeldingSchoolGuy,  Very good advice for anyone learning to weld (including those of us that have welded for years) and learning a new process!  Just the other day I was saying to myself (over and over) "if I go any further I am going to have to do it over"  Sometimes it seems it takes as long to get comfortable and in position for the weld then it takes to make the weld, but when we are done running the pass there is always the smirk on the face that says 'yeh' that felt good!!!TimA rich man is not the one who has the most but instead one who needs theleast. Retired IUEC local 19AK Bush pilot,  Chaplain  CMA Chapt 26victor torchesMiller110v migDynasty 200dx (new in Dec 08)Hypertherm PM-45MM-252 (new 2/09)
Reply:nice weather here today,outside gettin hood time, pig in s**t.smaller hole in middle foto is 1/2" diameter.1/8 "    7018  110 amps dcep.91 vette is back! hood is peeking out in first foto . Attached Images
Reply:lets see more pics of the saw
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