Questions tagged [welding]

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3 answers
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I need to be able to run a 220 volt stick welder DC with on least 140 amps from my truck [closed]

I looked up converters that run off 12 volt battery in cars and 24 volt using 2 batteries wired correctly cuz I see they make 24 volt converters. I am sure for past 30 years these are all made in ...
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0 votes
1 answer
41 views

Whether and how to remove slag from stick welding crevices

I am learning stick welding and yet to learn how to make smooth welds without crevices. But I already have quite a few now and wonder what to do with them. I tried to remove the slag inside them with ...
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1 vote
1 answer
140 views

How can I use this welder with 16A/230V two pin plug in the UK?

I bought a Sherman™ DIGITIG 200GD from Amazon a month ago, sadly it came with a European 16A/230V two pin plug. I've been so focused on making sure to meet stringent safety measures for my humble &...
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0 votes
1 answer
74 views

How can I extend a square hollow section (SHS) steel post?

When I bought a steel patio kit, I thought I would put one of its square hollow section (SHS) steel posts on the existing balcony so I ordered it in two and half meters. However, I have changed my ...
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0 answers
89 views

How much weight can 14 gauge 3” square tubing support?

I’m trying to determine the load that will be subjected to a fence I want to build. The idea is that the posts of the fence will be constructed or 3x3-inch 14 gauge square tubing with stringers sized ...
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1 vote
3 answers
97 views

Brazing rebar not heating enough

I'm attempting to braze together two pieces of rebar. I'm using a Bernzomatic ts8000 torch and MAP-Pro gas, and I just can't seem to get it hot enough (aiming for a red glow). I've had the torch on ...
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  • 203
1 vote
1 answer
42 views

Wattage for PPR welding machine?

Looking at some PPR welding machines. The biggest difference I found was the amount of wattage. I’m talking domestic usage (20-32 mm diameters). I see 800 / 1000 / 1500 watts (and more) …. Can ...
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  • 113
0 votes
0 answers
79 views

Strengthening a gazebo roof support rod that was previously bent

Snow fell on my gazebo while I still had the canopy on it. It bent the rods inwards and downward. I have managed to straighten them as much as I could, but I feel like they need to be strengthened ...
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  • 160
0 votes
2 answers
49 views

Advice on fixing torn metal base connecting to stem of office chair without professional welding

I need advice on fixing torn metal base connecting to stem of office chair without professional welding. The cost of welding is more than the chair. Would J-B weld or other options fix the 'tear' in ...
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  • 103
0 votes
2 answers
77 views

How do you avoid turning an oxy-acetylene torch off when doing two handed work?

I'm working on a project that has lots of little pieces to weld together. After each weld, I need to use both hands to setup the next one. I'm using oxy-acetylene and I really dislike setting the ...
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  • 273
0 votes
2 answers
109 views

When you cut off the excess wire from MIG torch, do you turn off the welder first?

Just for safety concern, is it a good practice to turn off the welder first before cutting the wire?
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  • 103
3 votes
2 answers
304 views

Can I use "Southwire E51583" AWG 8 wire on 50amp breaker?

This question is two fold: I have a PrimeWeld 225x TIG welder and it calls for a 50amp/220v breaker and NEMA 6-50P. I need to run 60 feet from NEMA 6-50P to breaker box (I have 200amp service). ...
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  • 31
1 vote
1 answer
67 views

How do I protect the ground under me while welding?

I am using STICK and MIG welding at the moment. Due to certain circumstances I am only able to do this kind of welding over natural surfaces (read grassland). While there is nothing preventing me from ...
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0 votes
1 answer
62 views

How to repair candelabra?

I'm looking for advice on the best way to repair a candelabra made from either wrought iron or mild steel similar to the one in the photo below. It is made up of several parts either welded or ...
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22 votes
2 answers
5k views

Is this correct? Welder suggests 15A outlet on 20A breaker, or 20A outlet on 30A breaker

I just bought a lower-mid priced 120V/20A welder (Forney Easy Weld 140MP), and the manual details that the welder be plugged into a 20A outlet (with a 30A circuit breaker), or you can use a provided ...
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  • 323
0 votes
1 answer
119 views

How to properly ground when welding

I read several articles online about grounding when welding and I'm more confused than when I started. I have an AC welder (old Lincoln buzz box)...just in case the type matters (AC vs DC). Here are ...
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  • 1,308
2 votes
3 answers
220 views

How to remedy railing swollen with rust

I noticed that a metal porch railing looks swollen with rust. Do I need to cut that piece out and have someone weld a repair or is it ok to leave as is? Should I put rust stop on it? Since it’s ...
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-1 votes
2 answers
431 views

How to attach valve to fridge compressor copper pipe without torch? [closed]

I'm trying to make a vacuum pump to pump my car's AC system. I have a fridge outside with r600a gas. I am wanting to take out the compressor and use it as a vacuum pump. I don't even know if the ...
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  • 17
1 vote
2 answers
134 views

Which type of welder is the best for pretty delicate welds

I have some experience with Arc welders and a little with MIG. However the rods and metal I have welded with are big compared to the 1/8in metal I will be working with. Getting a cheap MIG welder is ...
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0 votes
2 answers
296 views

Mounting iron gate on crooked posts

I just finished repairing some heavy damage on my steel and cast iron front gate. I'm ready to hang it again but I'm having a little trouble because the pillars on both sides have a slight outward ...
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  • 1,006
3 votes
1 answer
299 views

Wiring AC ARC Welding machine Three Phase

I sold my inverter machine to buy a three phase arc welding machine because I read it's more solid, but I can't figure out how to wire it, the seller is clueless he doesn't know what is the difference ...
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  • 33
1 vote
1 answer
41 views

Handling unavoidable rust (probably?) contamination in arc welds

I've been working on repairing my front gate, which got hit by a car. It's also been a good opportunity to get better at welding (FCAW). I'm having an issue doing some patch repair welds on the 2x2x3/...
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  • 1,006
1 vote
1 answer
545 views

3 prong plug to 4 prong outlet adapter? (Welder outlet)

It seems really easy to find the opposite (how to plug a 4 prong plug into a 3 hole outlet) but I actually need the reverse (I need to plug a 3 prong plug into a 4 hole outlet) and not sure if it even ...
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  • 23.8k
1 vote
2 answers
45 views

Cutting and welding a BBQ lid to make it narrower

I have a fairly heavy-gauge park style BBQ made by Pilot Rock. If you needed to reduce the width of this BBQ lid by a couple inches (facing the grill), how and where would you make the cuts and then ...
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  • 788
0 votes
2 answers
581 views

Locking a metal gate with a deadbolt

I'm having a metal fence custom-made that will have a regular (pedestrian) gate as well as a double gate for vehicles. I'd like to install deadbolts on both gates for better security than other ...
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  • 811
0 votes
1 answer
465 views

Mobile welding - need a specific generator?

Do welding units, such as a Multimatic 220 AC/DC (PDF spec sheet), need a specific generator to power it? For example, does that unit require the Miller Bobcat 260 (PDF spec sheet)? Or can cheaper ...
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  • 103
2 votes
2 answers
233 views

Welding electrode diameter suggestion?

I am just starting out welding. The job is to fillet weld 2"x1" 16 gauge (1.2mm) Rectangular Mild Steel Tubing for fabricating a frame. I have a 250 Amp DC welding machine. Can you suggest Electrode ...
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14 votes
2 answers
3k views

How to polish welding at 90 degree curves?

We have given contract to the local railings constructor and they have put the railing Balusters on the floor along with clips to put glass on. I am satisfied with their work so far, only thing that ...
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10 votes
7 answers
4k views

Steel welding options for a remote property?

I have a remote property where the previous owner welded a steel sliding lock (see pic) onto the metal door of an outbuilding. The part that sticks out (handle) broke off. the nearest/only ...
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  • 103
1 vote
1 answer
73 views

Is this product suitable as a solvent cement for abs pipes?

I have this at home: Glue and I need to solvent-weld these abs drain piping: pipe and elbow Can I avoid purchasing solvent cement? Or would that present some problem? Thanks.
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  • 243
0 votes
1 answer
427 views

Can you run a 240v US split phase welder on 230v UK single phase

I am moving from the US to the UK and would like to know if my welder will work on UK power. The welder is 240V 50/60 hz so that should be fine as I understand it... except, the welder is wired for US ...
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  • 9
0 votes
2 answers
81 views

How to support a heavy wooden lid in a copper sink

We have a wood kitchen surface and a pretty large copper sink. The hole is prepared for the sink, which we originally wanted undermounted with a positive reveal. The idea was that the wooden cutout ...
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  • 113
1 vote
1 answer
138 views

Welder rewiring

The wires of the incoming cable pulled out of my old oil cooled welder. I need to reconnect the live and neutral but there is no indication on the welder where either should go. Does it matter? I'd ...
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18 votes
2 answers
10k views

What is this welding tool I found in my attic?

I believe this is used with welders because i found it inside a welding helmet.... Could somebody tell me what this is exactly?
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  • 189
0 votes
2 answers
103 views

Is a gasless MIG welder a contradiction in terms?

There are lots of very low cost "MIG" welders such as this one for under $100. It claims it's gasless. But the girth of the torch and its lead look like it could feed gas. No gas inlet barb or hose is ...
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  • 279
0 votes
1 answer
201 views

Patching Holes in Iron Staircase

My condo building has an outdoor iron staircase that has been developing some penny to quarter sized holes. While the staircase is structurally sound, I’m looking for a solution to patch the holes in ...
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  • 187
0 votes
0 answers
108 views

Besides welding, are there other ways to connect this gear to its axle?

This is washing machine's agitator axle and a gear from transmission. The weld that connected them both had failed. Since I don't have welder at my disposal, I am wondering, if besides welding there ...
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-1 votes
2 answers
740 views

Fixing broken cast aluminum?

My drill press was dropped and the table broke off. The break is shown in the picture. Nothing got bent out of shape the table part fits this break perfectly. Is there a reasonable way to re-attach ...
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  • 1,190
1 vote
2 answers
3k views

Building a No-Weld Trailer Chassis

I need a chassis for a box trailer. For now I'm focusing on the chassis itself, as once that's built I can use it to haul the rest of the things needed for the box. I'm no steel-worker though, and ...
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  • 71
1 vote
1 answer
6k views

Help: Wiring 220V in garage to NEMA 10-30r because MIG welder and air compressor have 10-30p

I've reviewed many articles on this website as they've been referred by my Google searches. But most have been about dryers. I have an older air compressor (240V, 60Hz, 15A, 5hp) and a MIG welder (...
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  • 11
1 vote
2 answers
858 views

Stick welder shut off [closed]

I was welding with an amico 140 amp stick welder when it shut off without warning. Why did it do this? I have waited about an hour and a half and it is still unresponsive. Is there a fix? If I am not ...
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1 vote
3 answers
2k views

Is there a "universal" flux core welding wire for repairing any kind of iron?

I need to weld a railing and am not sure what kind of metal it is made from. For the time being, I'm going to assume it's iron until I can do a magnet test. But short of getting a sample tested in a ...
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  • 188
1 vote
2 answers
1k views

Attach aluminum tube securely to base without welding/soldering?

How can I securely attach 4-ft x 1" aluminum tube to an aluminum base without having to solder/welding or glue? The aluminum base is 1/8" thick. The tubes are open on both sides, but they can be ...
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  • 1,895
0 votes
1 answer
4k views

Materials needed to weld stainless steel to galvanized steel?

I have a welder that knows how to weld regular steel to regular steel. Now he's going to weld regular steel to stainless steel, but I'm sure he's never done this before. Besides the welding machine, ...
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  • 1,895
0 votes
3 answers
914 views

Soldering Table Legs?

Would it be ok to solder,brass or hard metal, to make table legs? Or Would the joint not be able to hold much weight?
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1 vote
0 answers
82 views

Welding (MMA): what wire and wall socket should be used?

Right now I am planning an electrical conduits and wall socket that is going to be used with a welding inverter, and encountered the following problem: Let's assume inverter maximum consumption is 5 ...
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0 votes
1 answer
422 views

Building water tight box from plywood and HDPE

Origin I built a box out of 0.3" (8mm) plywood sheets framed by 3" (75mm) by 2"(50mm) staffs. The box is about 3' (1000mm) each side and 2' (600mm) deep, has a floor but is open at the top. The box ...
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  • 103
0 votes
1 answer
83 views

How to ground a plasma cutter

Just bought a Zeny 50 plasma cutter and I've never used one before. I will be using it outside in a paved area. Where should I ground the big alligator cable? Should I stick a copper pipe into the ...
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1 vote
3 answers
10k views

Can I use flux core wire with MIG shield gas (argon/CO2)?

I recently purchased a cylinder of MIG shield gas (argon/CO2). Can I use my existing flux core wire and the MIG gas together or do I need to buy solid wire?
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  • 19
0 votes
1 answer
141 views

How long must be the vertical leg of support brackets?

I need to install some heavy granite contertop (650mm depth) on masonry walls, and I have a lot of angle iron (1 1/2" by 1/8") and U channel (70mmx30mm x 5/64") leftover and thought about welding them ...
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  • 2,285