Stopping an oxyacetylene weld from popping? Answered

I'm pretty sure that anyone who has oxyacytelene welded has had a weld "pop" when they jab the rod into it or overheat the molten metal. I've been doing some oxyacetylene welding and I'm working on my lap joints. When I was simply laying a straight line on weld across a plate I never made the weld "pop." Now every time I pick up a torch and try a lap joint it goes "POP!" and flings molten metal everywhere. What am I doing wrong? Can anyone shed some light on my problem? Any help is much appreciated!

Asked by dla888 7 years ago | last reply 7 years ago


Where to buy JB Weld

I tend to do a good bit of research when I purchase anything. I will spend hours finding the deal that will save me five cents. While this doesn't make much financial sense for me, maybe it will end up being worth it if you can save a few cents in the process!The only step to this instructable is a list of the best places I've found to purchase JB Weld. For those who are not familiar with JB Weld, it is, simply put, God, in a tube. It is an epoxy that when mixed (and mix quickly, you only have about 20 minutes of pliability) will set within 4-6 hours, and cure within 24. Once cured, it has the strength of steel, can bind with glass, and neatest of all, is actually conductive enough to use as solder!Note that I'm only referring to the original JB Weld, model 8265 (and 8265-S). I find the stick version doesn't adhere as well, and the "Kwick" version isn't as strong. I also tend to be stubborn and just stick with what I'm comfortable with.Since the invention of Duct Tape (genuflect) nothing has been so valuable to mankind. Thus, it's not surprising to find it anywhere from $9.99 a tube, up to $14.99 per tube. So how much should you be paying for your J.B. Weld?If ordered online, you can get it for as little as $2.95 per tube!Note: These prices are only accurate as of the posting of this instructable (29 June 2009)Okay, so if you've come this far, $2.95 per tube sounds pretty exciting. Keep in mind though that you're also going to end up dealing with shipping, so we'll see what the end result will be. When in doubt, if you have a local Ace Hardware, Lowes, Home Depot, etc. look there first. You avoid shipping, and the Ace online outlet sells it for as little as $3.25 per tube (No idea why nobody else, including Sears, KMart, Target, etc. carries it online). If you can find it in the store for that price, that would be your best bet. But assuming you don't have a local Ace Hardware, or since they're locally owned the Franchise Owner is a prick that overprices things, let's see how the following websites work out.First, it's important to note that while you will find many other places online that claim to sell the JB Weld for as little as $2.95 per tube, just try to purchase them. I'll wait... Back? So as you saw, 99.9% of these sites use the Amazon.com checkout system, and only allow ONE TUBE AT A TIME to be purchased. They then hit you with a $4.99 shipping fee for each pop, and now you're back to paying $8 per tube.On to the real suppliers:#1) Tool Explosion - The best price I've found with free shipping, but their free shipping minimum purchase is $100, and their JB Weld was only $3.76 per tube when last checked! One of the better deals out there. Between $100-$130 worth, this was the best deal I could find.#2) Alexandria General Supply - To get the $2.95 price here, you have to buy in 6 packs, otherwise it's more expensive. But hey, more JB Weld can only be a good thing. They seem to have a starting-rate of $17.05 for shipping, which is nearly as much as the 6-pack of JB Weld, making them almost $6 per. However, the more you order, the price of shipping will actually start to go DOWN. At 7 cases (42 tubes), it dropped to $7.41 for shipping making it $3.12 per tube, and at 20 cases, it was only up to $8.16 for shipping, making bulk purchases very much worth it. At $131.31 for 42 tubes, this was the best deal out there, and only gets better the higher you go. They do not accept PayPal, but do accept all major credit cards.#3) Ace Hardware Outlet - Don't ask me why AceHardware.com doesn't carry it, but AceHardwareOutlet does, but I'm not going to argue. At its respectable price of $3.39 per tube, it's not a bad deal if you're buying in bulk. Unfortunately, for just a single tube to ship, you're looking at $6.39 for shipping. The shipping rates only slowly go up the more you pile on, so if you're doing some shopping for some other hardware, Ace is The Place... For Me... (Plus, they take PayPal!) For individual tubes assuming you can't find anything locally, this is the best price going. At least buy 2 or 3 tubes at a time to make the shipping worth it, though.#4) Hands-On Tools - Another site with fair shipping, and a decent price of $3.66 per tube. Not much to say about this one, except that they seem to be one of the more reputable sites selling the weld for a good price. They work with the BBB and have a good rating, accept PayPal, and give you percentage discounts the more you buy. All around a solid company.#5) Castle Wholesalers - One of my personal favorites (since they are located near me, mostly) selling the JB Weld at $3.47 per tube. However, do keep in mind that you have a $25 minimum order here. Their prices are pretty standard for shipping, so you can add about $1 per tube once you've bought the requisite $25 worth. The more you buy, the cheaper the shipping gets per tube, as well. Only Visa and Mastercard accepted.#6) College Toolbox - While their price isn't the best, it's still a fun site with some decent stuff at fair prices. At $4.11 per tube, it's not necessarily worth the purchase here unless you find enough of their gear to get the "$150 purchase gets free shipping" thing. (And they take PayPal)In closing, if needing just a tube or two, your best bet is always going to be to shop locally, and buy from a hardware store. But once you start getting into the $5 and $6 price range, there are some decent places online to pick it up (if you don't mind the wait). Always take shipping into account, and always avoid Amazon.com and their Affiliate's rip-off schemes. If you see the Amazon logo, run far and fast (or at least close the window). E-Bay is equally a rip-off, only moreso as you're starting at the $9.99 level, and then tacking shipping onto that.For the hobbyist that understands the glory that is JB Weld, drop the $130 and get enough JB Weld to last you for a long, long time. For all others, I would recommend avoiding purchasing it online unless you absolutely can't find it for a fair price in your local stores (I can't stress that enough. Shipping is the debbil.)Hope this helps someone, and if anyone finds a better price, feel free to include it in the comments and I'll add it to the list!

Posted by Javin007 9 years ago | last reply 7 years ago


Can a stick welder Weld aluminium ?? Answered

My dad has a mig welder and i dont want to buy a gas kit for that so ive been thinking of buying a cheap stick welder WIll it be able to weld aluminium angle or box aluminium

Asked by stephenniall 8 years ago | last reply 3 years ago


How to bond cross linked acrylic sheets?

I want to join two 1/4" thick acrylic sheets.  All the welding adhesives for acrylic claim to not work for cross linked joins.  Can someone please suggest the proper chemical or any other method to bond the two pieces together. Thanks.

Posted by kabira 3 years ago | last reply 3 years ago


How strong is JB weld compared to real welding? Answered

I want to build a recumbent bike, but I can't weld. Any other ways to build one. Mabye make one from hockey sticks.

Asked by ANDY! 9 years ago | last reply 2 days ago


Welding!!

So I see tons of instructables for no weld bikes, trailers, and all kinds of stuff. Well, I just got a new flux wirefeed welder. I need something to weld! It has just been sitting there after I stopped practicing to save some wire. I welded the seats down in my car and want a new project that's not too hard. Give me your ideas!

Posted by Yerboogieman 7 years ago | last reply 7 years ago


i have a mig welder and my welds form in balls, i have to grind them down for ages, how can i make them pool?

Please could any EXPERIENCED WELDER advise me?

Asked by l96470fps 9 years ago | last reply 9 years ago


Backpack Welder

Check out this awesome backpack welder; I saw it in a Farm Show magazine.  It would be fun if someone made an Instructable of one of these.

Posted by robbtoberfest 8 years ago | last reply 5 years ago


I cracked my bicycle front fork on the steering tube, is it worth saving/fixing? And if so how? Welding?

Bicycle front fork cracked on the steering tube from overtightenting. Its just a plain old fork that is all steel with no shock and not bicycle specific, I just use on my daily rider. Should I get it welded? Brazed?

Asked by anthonyfsoos 6 years ago | last reply 6 years ago


What is the duty cycle of a welder? Answered

Is a 6% duty cycle good? Bad? Terrible? Worth blowing up?

Asked by bowmaster 8 years ago | last reply 5 years ago


Need help with wiring a KJD17 switch for homemade stick welder!

Hello everybody! So, I finally got around and made a stick welder, and it wa surprisingly easy! Now it's just up to make the box it will live in, cooling and on-off-switches and the like. I have a KJD17-switch which I'd really would like to use, it has automatic safety protection against power outages and restarts, which sounds nice enough, considering that this again is an electric appliane that I made myself, meaning more protection is always good! Now the problem is the safety protection, as I do not know how to wire it! Where am I supposed to connect the A1-pin? To pin 14, maybe? I'm afraid I'll destroy this nice switch by connecting it wrong, so if anyone has a clue, please let me know. The datasheet for the switch can be found here. On the datasheet there is the same shematics as on my switch. Best regards Elmo

Posted by Kaljakaaleppi 7 years ago | last reply 6 years ago


I want to learn how to weld? Answered

I want to be able to tackle many instructables that involved welding, and to be able to build things like a go-kart chassis, or do cheap car repairs. I know there are lots of types of welding, what is the best for general this-and-that stuff thanks

Asked by sladek 8 years ago | last reply 8 years ago


How strong is JB weld compared to cast aluminium by a tensile force?

Hello. How strong is JB weld compared to cast aluminium? A broken lever from the quick snap from a "Supercut 2 Q" oscillating tool from "Fein".

Asked by tobias.claren.9 1 year ago | last reply 1 year ago


welds form in balls, not strong.gassless mig 60-90A , 10/15% duty cycle, wire speed 0-10.3 m/min? Answered

Settings above, not sure of wire but am using what shop said to get

Asked by l96470fps 9 years ago | last reply 9 years ago


robotic arm arc welder

Is it a robotic arm capable of arc welding feasible for a diyselfer ? I spotted some robot arms for cheaper than 200 $ over the web . Vantages for the operator would be no weld fumes breathing , no uv rays and such ..

Posted by gabdab 5 years ago | last reply 5 years ago


where are there classes to TIG weld?

Asked by raygonzo25 9 years ago | last reply 9 years ago


can I glue nylon sheets instead of sewing?

I want to make a tarp but don't want to stitch the waterproof (pu coated) nylon. Has anyone tried glue or welding with a hot domestic iron?

Asked by stillalive 9 years ago | last reply 9 years ago


Is there any particular way to solder or weld thin stainless steel?

I'd like to reshape, attach, and make some art out of some stainless steel bowls [http://bit.ly/IgeDXA]. I've naught a clue how to approach the issue of connecting them, since they are so thin, and I'm not too sure what sort of connecting material I could use. (Would regular solder work, or would I need a specific kind?) I've only ever soldered a bunch of wires, and advice on this would be great since I'm going off the deep end into uncharted territory. Thanks!

Asked by J-Manoo7 6 years ago | last reply 6 years ago


Where can I get cheap car batteries? Answered

I need some to make a welder.

Asked by bowmaster 8 years ago | last reply 8 years ago


MY NUTS

WHATS UP IAM BUILDING  MY 4TH TALL BIKE.   2 OF THEM ARE 4 1/2 FT TO 5 FT TALL AND 1 IS 61/2 T 7 FT TALL I USED NUTS AND BOLTS ONLY NO WELDS AND BELIEVE IT OR NOT ALL THREE ARE HOLDNG TOGETHER VERY WELL ,I WANT TO GO UP 1O FT ON THIS NEXT ONE   BUT DONT WANNA PUSH THE LIMITS OF PHYSICS AND GRAVITY SO WHAT TYPE OF WELDER SHOULD I USE  TIG   MIG  ARC  I D K   

Asked by GINOOO 7 years ago | last reply 7 years ago


What type/shape of metal ( i.e. tubular aluminum) should I use for a robot frame? Answered

I am building a robot. It will be about 1.5 meters long, about 30 centimeters high, about 40 centimeters wide ( all dimensions excluding wheels, tracks, etc.). It's body will be a metal frame with an outer fiberglass shell. The frame needs to be strong, lightweight, and rugged. It would also be nice if the frame could be welded with a homade stick welder, but that isn't a primary concern. Any advice is appreciated. Thanks!

Asked by mad magoo 9 years ago | last reply 9 years ago


how can i repair antimonium?

I have this antimonium piece that is supposed to hold on to a shaft with a set screw, the thing is that the screw hole is just to big, I need a way to make it smaller, and hard enough to hold the 3x3mm set screw in place.

Asked by jzapnabetsenauj 9 years ago | last reply 9 years ago


Welding as a craft subject listed under crafts and also some nice welding projects

Let's add Welding as a craft subject listed under crafts and also get some nice welding projects.

Posted by geezerbeast 2 years ago


"Welding" Plastic

What is the best way of "welding" or joining two pieces of plastic? The type of plastic I'm using is the translucent material used in milk containers.

Posted by BrianKT 10 years ago | last reply 7 years ago


Welding Classes?

I really want to learn how to weld but don't know where I can go.  Does anyone know a class or workshop in Kansas City, Missouri were a can learn to weld?

Posted by H20 8 years ago | last reply 6 years ago


welding a motorcycle?

I know how to weld. How to weld on a motorcycle?does the battery terminals need to be removed and what other electric components need to be removed so they are not damaged from the increased voltage running through the frame when welding?

Asked by 103curly 8 years ago | last reply 8 years ago


liquid weld

I patched the bottom of an iron pan we use for camping with liquid weld, is it safe to eat food cooked in the pan?

Posted by thinkingtank 3 years ago | last reply 3 years ago


How much voltage and current used in Arc welding? Answered

How much minimum  voltage and current is required to make arc welding?

Asked by Rajkumar2506 1 year ago | last reply 1 year ago


Remove RF welding

I am trying to build a small tent and bag.  i have some nylon fabric that have been RF welded before. Is there any way to remove this welding so that i can reuse the material ?

Posted by tingtong74 5 years ago | last reply 5 years ago


Im 14 but really I really want to do some of these welding projects is it that hard?

And does anyone know any place i could like pay a fee and go weld? Buying a machine is out of the question as i do not have anywhere near enough!?

Asked by xnadx 6 years ago | last reply 6 years ago


How to fasten galvanized pipes?

Hi there, I have a lot of galvanized conduit of various diameters that I found in a dumpster. I would very much like to know how to fasten one pipe to another so I can make stuff with it.Welding: I've read on instructables and elsewhere that you will become quite ill if you weld galvanized materials due to the evolved zinc fumes. Are respirators an option?Lap Joints: I thought of trying to make a lap joint by cutting out matching "half rings" from the pipes, overlaying them, and then bolting them through. I'm stuck as to how to make that cut though. I could do it in wood, it seems like metal would be trickier. Any thoughts?I'm being forced to move the pipe in a week or so; any off-the-cuff ideas would be fantastic, thanks!

Posted by post.haste 10 years ago | last reply 10 years ago


What is the best way to make a small metal box? Answered

Im trying to make a metal box that can open on hinges. I'm on a budget, and i dont even know where to start. my plans are (LxWxH) 14"x14"x8". i want to have it open with hinges in the back, with the lid half 3.5 in. thick and the base half 4.5 in. thick. I have some means of welding and soldering. it doenst need to be sturdy, just for display. i also perfer that the metal being used is malleable so i can give it a curvy bowed look. list for me materials, prices, and instructions. thank you SO VERY MUCH. Chris

Asked by gonzoman73 8 years ago | last reply 8 years ago


Help with some engineering issues on a folding tail gate ramp?

I'm building a folding ramp to replace my tailgate on my truck. It's going to be used to load/unload a ztr lawn mower. (It's been built primarily from discarded bed frames, with the addition of some expanded steel grating.) Because these mowers are back heavy, and low to the ground, a longer ramp is needed than you need to load a conventional mower. My solution is a spring loaded 8' ramp that is comprised of two 4' sections that fold down and out. It functions, it fits, the mower goes up and down it ok. The problem is that it is so heavy, that after it comes down about 2/3 of the travel, it is very difficult to control. When it comes down hard, it puts tremendous stress on the center - where the two sections of ramp meet. It can be hard enough to break it. I know my welding isn't the best, but that's really not the issue here. This is a design problem. I'm going to post a few pictures, to better illustrate my situation, and to show some of the things I've tried to soften the blow. The picture of the partially folded ramp was taken at the point where it begins to get difficult to lower without losing control. So, to clarify, I need a way to lower and raise the ramp with more control, and or soften the blow towards the middle.  The springs I'm using are 140lb garage door extension springs, the largest springs available at any big box home center. I need to get this finished yesterday, so I'm going to try some things while I'm waiting for a response, like move the springs back further in the bed to put more tension on the whole thing. I'll also post this to the welding web forum, but I started here because I've got a lot of faith in the ingenuity of the instructables community. If we get the bugs out of this thing and anyone wants it in instructable form, I'll do my best. Thanks for reading the War and Peace of ramp questions. -Amir

Asked by Amir 8 years ago | last reply 10 months ago


Does anyone have advice for building this? Answered

I am building a recumbent trike like the one in the picture (which happened to be my inspiration once I saw it on the gallery of northerntool.com). I will be using 2.5 inch fence post for the frame, a mountain bike, a chair/desk from my school, and various other parts. I plan to make an instructable once I'm done (don't worry, I'll take pics). The pipes won't be bent, but rather welded at angles. The back wheels will be 10" pneumatics. I have a pretty solid idea in my mind of how I'm going to do it, but it won't materialize until I get off my lazy butt (I've been mulling this project over for a few weeks now) and make the sparks fly. Oh yeah, almost forgot. This is green because it will make me feel more inclined to use human powered transportation.

Asked by thecheese429 9 years ago | last reply 8 years ago


art welding

I want to get into art welding and don't have any welding experience. Where can I go to get welding instruction and guidance for small projects. I don't know the difference between a TIG, MIG, or Arc welders. Which one is the best to learn on?Not intrested in jewelry. Thanks

Posted by bouche 11 years ago | last reply 2 years ago


convert bicycle to recunbent without welding? ?

Convert bicycle to recunbent  with out welding take parts of 2 or more bikes too make 1 bike

Asked by zzjoev 7 years ago | last reply 7 years ago



What is the standard thumb rule for welding rod consumption for 1ton fabrication?

Pls answer this querry.

Asked by vivekair 8 years ago | last reply 1 year ago


welding

I was thinking of making a welder that uses a capacitor bank, and does stick welding (STAW). How would I go about doing this? Any other ideas for homemade welders? A small desktop welder?

Posted by LinuxH4x0r 11 years ago | last reply 7 years ago



welding how-tos?

I want to learn how to weld aluminum and steel. Anyone know of good sources of information and/or starter kits?

Posted by ravelgrane 11 years ago | last reply 10 years ago


Help my oaw weld puddle is building and creating porosity ?

I’m a trainee oxy welder and I’m welding on inconel 400 and my weld has way too much porosity. I’m pre heating it to the correct temperature, and welding it how I was taught to by my supervisor and I have no clue to what is causing it to be so pores. I keep trying to ask them what is causing my problem but they clam to not know? Any possible solutions or theory’s 

Asked by Griffgriffoaw 11 months ago | last reply 10 months ago


How can I weld/ fuse aluminium without a welder? Answered

I am trying to make a Stirling engine, for the displacer piston I need to weld an aluminium tube to some aluminium plate and possibly bar but I don't have any welding equipment, so any suggestions?

Asked by The MadScientist 7 years ago | last reply 7 years ago


how to convert a generator to be a welding machine?

Asked by rdrnnr 9 years ago | last reply 8 years ago


Jb weld-bulletproof-suit?

JB weld, the gooey-at-first,tough-as-rock-later-on stuff we use to fix all kinds of stuff, from broken chairs to unsightly holes- the number of possibilities are endless.  So, is it possible for large amounts of Jb weld to be casted into a bulletproof suit that can actually save lives?

Asked by Boppo3 7 years ago | last reply 7 years ago


Spot welding 1.5V battery tabs Answered

I'm trying to spot weld battery tabs for rebuilding a Nicad battery.  I'm using a 12 volt SLA battery for power.  When I touch the leads they get so hot they burn the tabs, but the weld doesn't penetrate the battery.  What am I doing wrong?

Asked by johnnytombstone 8 years ago | last reply 8 years ago



bike to trike no weld conversion? under $150?

can it be done just asking

Asked by erjr5op 8 years ago | last reply 6 years ago


Welding

Hello, I am currently in the process of making a pneumatic air-gun, I have previously made one out of PVC but had major leakage problems.. Ive moved on to metal.. Will high pressures break the welds and fly off and hit me in the face?? What pressures? Can I weld brass to steel?

Posted by alex117 9 years ago | last reply 9 years ago


Is JB weld strong enough for an aluminium RC car frame?

I'm building an aluminium frame for a radio controlled car. Will JB weld be strong enough to join the individual rods, and handle a few crashes and rolls? Also the general stresses from acceleration etc. I've got some low temperature welding rods and a blowtorch but having huge problems with adhesion and flow to even get started with a join.

Asked by fiyero666 4 years ago | last reply 4 years ago