can 12L14 ledloy be welded?
97864
yes, with an alloy or equal or lower melting point
1050579
The technique is called Post Weld Heat Treatment (PWHT for short). \n\nAdam the Engineer has got it wrong (sorry Adam) and BikerwookieJim has got it almost right.\n\nThe only flaw in his answer is that you CAN rework a piece after PWHT, but you have to repeat the PWHT after the rework. The cost of doing PWHT is high and can be very high for large pieces (like in ship building), so you try to do it only once.\n\nPieces that have undergone PWHT are usually marked as such so that nobody does any rework which (as BikerwookieJim said) would leave a week point prone to failure.
635904
Come on man... Its a Miller... you can get most of the parts you need for a full rebuild at a hardware store. Try Marvel for a manual.
137812
refer to your OSHA manual or talk to your safety supervisor. You can always contact OSHA at www.osha.gov for more info.  I recommend OSHA approved Z81 frames with permanant side sheilds. As for the lenses at least 2.0mm Center thickness lenses...DO NOT USE POLYCARBONATE if you are welding
128277
Typically not. In engineering calculations we employ a strength allowable knockdown in the Heat-effected-zone near the weld.
618928
Virtually all steels are quite weldable.  Those alloys with high percentages of certain metals like chromium must be welded in an inert atmosphere to prevent oxidation of the alloying metals.
911286
im a welder we have newportnews shipbuilding here in virginia also check out this site www.roadtechs.com
17626
If you are thinking about welding ... forget it! Cast iron does not weld. A highly skilled person can braze cast iron together but the high heat can distort the iron and can be expensive. And you still have the appearance of the raised braze bead to deal with if it is on an outside surface.\n\nI recommend "gluing" cast iron together. A good product to use is called J-B Weld. It is a two part epoxy adhesive that comes in small squeeze tubes. Follow directions on the package. This stuff does not make a good filler material because it is somewhat runny before it sets up.
7409
Hi my freund.\nTIG is one of the method of fusion arc welding which its exat name is GTAW(Gas Tungestan Arc Welding)and contain a tungestune electrode and some sheilding gas such as Argon and Helium .\nI dont know how much information do you want.If you need more you cam mail to me by this address:\nmostafahedayati@yahoo.com to answer more accurately.\nGood luck
169774
I use a torch with MAPP guess whenever I solder copper pipes.  For welding iron, I use a MIG or arc welder.
1084824
Yea, I would say there is a chance.\nAmong other things, the wiring is probably not rated for that kind of load, it could overheat and melt the sheathing.
237340
low range is best with a small diameter rod, e7018 or e 7014 3/32 diameter . it will be difficult if the metal is less than 1/16 in thickness. strongly suggest mig welding.
307389
"Pot metal" is aluminum and zinc, but the purest form readily available is (was) in the casings of cheap dry cell batteries.  The old anode from an outboard engine would be high in zinc (ask a boat dealer for an old one).  A scrap dealer might also be able to help you.
555540
Not sure about using "welding rod", but I know you can spot weld and ultrasonically weld Polystyrene to Polystyrene quite well.  There is "General Purpose" and "Rubber Modified" Polystyrene.  The rubber modified is easier for spot welding, swaging and staking, so I'd assume is easier for other methods of welding.  If you use welding rod, it would need to be Polystyrene (You may get some bonding with Polycarbonate as well).  Haven't seen welding rod in either of these materials though....  maybe someone else has??
1157570
Welding rods are usually sold in air tight containers. Once they are open, the coating will tend to absorb moisture. Any procedure that will exclude atomspheric moisture is okay. \n\nI have seen jobs where they used an old refrigerator with a couple of 100 watts light bulbs inside to maintain some warmth.
178800
To make a motor you need 28 guage copper wire that will have a dark tinted laquer on it. You cannot see it except it is usually darker than copper. In other words you can sand it off when you need to solder it or make a connection. You can buy this wire at radio shack I think.
754186
Lacking more detail - my suspicion is that the release of H2 will cause the amount of aluminium to be to high...\n\n-dh