# Tag Info

Accepted

### Is it possible to increase the heat output of a gas stove by connecting two gas supply canisters to it at the same time, and is it safe to do so?

is it possible to increase the heat output of the burner by connecting two low-pressure supplies in parallel via a T-piece like this one? The primary factor is gas pressure at the tee. If the ...
• 522

### Is it possible to increase the heat output of a gas stove by connecting two gas supply canisters to it at the same time, and is it safe to do so?

No, connecting two tanks together will not double the flow. The regulators fitted to tanks limit the pressure and flow rate so all you do is double the amount of gas the burner has available ie ...
• 13.6k
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### Can you get quality welds from a multiple metal wire feed welder, or do you need separate units for steel and aluminum?

The short answer: it's not optimal, but may work. Hopefully if these welds are critical, they're being performed to some code (In the US, for most structural work they'd be AWS D1.1 and D1.2 ...
• 4,501
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### Short circuit in welding

No, this is not classed as a "short-circuit". This is a circuit with a designed current flow - ie a 60 to 150A range is common... A "short-circuit" is a circuit where the current flow is not ...
• 13.6k
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### Schaeffler, De Long, and WRC welding diagrams - which steels can be used?

You are not exactly right. The purpose of Cr and Ni in stainless steel, besides the stainless part, is to tailor the microstructure. Cr promotes ferrite, Ni promotes austenite. Other elements have ...
• 3,971

### Can you get quality welds from a multiple metal wire feed welder, or do you need separate units for steel and aluminum?

This assumes US codes are used. The question of whether or not a quality weld can be produced needs to be proven through testing. Per AWS (American Welding Society) codes (D1.1, D1.5, etc) the welder ...
• 10.6k

### Is welding aluminum a good choice?

An option available to you along with welding is a product known as aluminum brazing rod. When aluminum is heated to melting point, an oxide forms which prevents bonding. In a welding environment, a ...
• 6,092

### Strongest brazing materials for titanium?

To give at least some context to this. Titanium is generally considered 'exotic' for welding purposes as it is quite sensitive to both temperature change and contamination by atmospheric gasses, even ...
• 15k

### Thoriated tungsten TIG electrodes were in use 45 years ago.What were their specific use and problems?

According to TWI-Global TIG welding electrodes usually contain small quantities of other metallic oxides which can offer the following benefits:- facilitate arc starting increase ...
• 9,382
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### What is the process for qualifying a weld between structural steel and stainless steel?

According to this slideshow it looks like a weld between stainless and carbon or low-alloy steels would be within the scope of D1.6 entirely. It would not be prequalified so it would have to be ...
• 4,501

### What materials or techniques can I use to reduce this electrical effect when building spotwelding tables?

The welder you are using forms a very large inductive loop when the contacts are welding. Any conductive materials you bring within that loop will form one half of a transformer, and they will "steal" ...
• 1,106

### Pouring copper onto another copper block

There are a couple of issues here. To get a proper fusion weld both surfaces need to melt and whether or not this happens depends on the details of the heat transfer for the whole system. It is ...
• 15k
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### What treatment is necessary after welding carbon steel pipes?

Other than inspection/NDE , the only treatment would be for appearance. For stick , you need to knock off the slag to examine it for quality. In some situations the hardness would be a concern and ...
• 5,720
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### Why is fillet weld assumed to be in a state of pure shear stress?

First of all, one small but important note: The relationship between shear yield stress $S_{sy}$ and the (tensile) yield stress $S_y$ is dependent on the failure theory. Von Mises: \$S_{sy} = 0.577 ...
• 22.6k

### Can Rotary Friction Welding be used to join metals and ceramics?

Probably not. The friction welding process presupposes a certain level of ductility so the mating surfaces can deform together and completely bond. Ceramics lack the deformation mechanisms that metals ...
• 11.7k

### When is a convex weld finish required?

In general concave welds are avoided. Usually, they are the unintended product of vertical welds, when gravity is affecting the molten mass. However there are cases, where concave welds are beneficial ...
• 22.6k
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### What is this kind of weld?

The vertical lines show the edge preparation of the join. Since they are both vertical, then both plates (pipes, tubes, etc.) are squared off. There are no bevels. It is technically as "square ...
• 10.6k
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### Aluminum for an Ejection Seat Replica

In your situation (as long as you don't actually intend to use the thing!) 6061-T6 will be just fine. The main reason to pick it is that many more product forms are available in it than most other ...
• 4,501

### How to join 2 mm stainless steel welding rods without a TIG welder

I think brazing would be correct for your application. Unless, the entire tray system needs to be stainless steel for hygienic and/or anti-corrosive reasons. Brazing is like soldering, you likely may ...
• 1,578

### Weldability of Pure Tin

In general when we talk about welding metals the process involves melting and re-fusing two separate pieces in order to join them. This has the potential to create a joint at least as strong as the ...
• 15k

### Affixing a thermocouple to a surface

A little late to the game. A method recommended in B&W's Steam, Its Generation and Use, is to drill small, closely set holes in the metal substrate, insert the individual wires into the holes, ...
• 171

### How to test Cross Wire Welds

The only test method I've seen is in the RWMA Resistance Welding Manual. They recommend the use of a pusher block and support to test the pull strength of cross wire welds. It is shown on page 6-5 of ...
• 31
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### Stick welding inner corner

It's hard to give a definitive answer for welding questions like this because there are so many variables, but here are some possible things to try: Technique From the photos it looks like you aren'...
• 4,501
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### High frequency TIG welding and Bluetooth or WIFI frequency

Don't worry about the frequency of the applied power. Worry about the fact that a spark gap is a fairly efficient way (and can be a really efficient way) of generating radio frequency radiation. It'...
• 2,208
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### Welding Carbon fibre

You basically can't. The same way carbon fiber is made: Epoxy. Fiber-filled if need be...but won't be as strong as a weld though. The only other potential method I know of is to get carbon fiber ...
• 3,085
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### Quicker way to weld hexagonal nuts in honeycomb pattern

The fastest method to attach hex nuts to sheet metal would be to modify a stud welder. A commercial stud welder is grounded to the metal plate and the threaded stud is held in the opposite electrode. ...
• 6,092

### What kind of welding technology is used for welding this muffler?

Cheaper than soldering would be press-fitting the parts together. To do this, at the joint where the (for example) end plug goes into the muffler cylinder, the plug diameter is slightly larger than ...
• 11.7k

### Can you get quality welds from a multiple metal wire feed welder, or do you need separate units for steel and aluminum?

A prime example of welders that would perform such welds would be a Lincoln PowerMig 210, Hobart Handler 210 MVP. This is just to name a few. Miller and Everlast also have the "MVP=Multi Variable ...