Questions tagged [welds]

Use this tag when the question deals with the design of welds or their uses. For questions about the physical process of making welds, use the [welding] tag.

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419 views

Does welding two metal parts together increases or decreases the strength locally there?

I have a structure made out of steel consisting of many thin rods and some of them are welded to each other. I conducted a simple FEA static structural analysis to determine if the structure would ...
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1answer
52 views

When is a convex weld finish required?

In weld symbols one can specify the finish of the weld. In flush weld, for example, one needs to level the weld into a flat surface. I can imagine when this is needed: if something is required to rest ...
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1answer
39 views

How can I make inside a LSAW pipe uniform and smooth?

I am using a LSAW 16mm(OD) pipe, and I need to have a smooth and uniform surface inside it so a piston can reciprocate easily inside it. What is the best and fastest way to remove the inside weld line?...
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0answers
29 views

How to weld a copper flange with a Nickel alloy pipe?

I have a copper flange and I want to weld it to a nickel alloy pipe. Normally, which welding technique is used to join these two parts? Also what is the filler material to be used to weld a copper ...
7
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1answer
551 views

How should the welded corner of this bracket be detailed?

Consider the design of the bracket shown in the figure below (it is assumed that the anchors are sufficient and are not considered below). My question concerns the detailing of the welded connection ...
2
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2answers
171 views

How does Electric arc welding compared to gas welding?

While focusing on Quality and strength of welded joints produced but both methods..
2
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1answer
150 views

Plugging a 25A device (Welder) on 10A house plug

I would like to plug a 25A welder on a 10A house plug. I understand that it will not accept full power or the circuit breaker would switch. However, my question is if I may run under some lower power ...
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3answers
1k views

Tangential nozzle on vessel - weld preparation

What is the proper and recommended weld preparation for true tangential nozzle on pressure vessel. Where can something about this thematic be found. EDIT
2
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3answers
9k views

What type is miter joint - Welding

Is miter joint in welding - butt joint or corner joint ? My example includes 45 degrees miter (90 degrees) angle on two SHS (Square Hollow Sections) - 50x50x3 [mm] Working with EN/ISO norms regarding ...
4
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1answer
1k views

What does the abbreviation "B.C." mean on a weld joint diagram?

A translator posted this diagram of a weld joint on a translator's forum (the figure below). What does the abbreviation "B.C." mean on the diagram?
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0answers
30 views

Help me guesstimate the loads I can apply to a little PE block welded to a PE wall

I want to mount some equipment into a polyethylene (PE) shaft. I can't bolt or drill directly into the walls, but the supplier of the shaft can weld little PE blocks onto the wall: 50x50x50 mm, with ...
4
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1answer
179 views

Determining the microstructure of steel after welding in modern computer software

How can the microstructure of steel after welding be determined in modern computer software? I am aware that there are 'classic' methods of predicting microstructures like Schaeffler, DeLong or WRC ...
7
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1answer
3k views

How do you check a weld for applied moment?

I have a single angle connected to a double angle via a 3/16" weld I know there is a factored, applied moment at that connection. I would like to ask how I can go about checking the capacity of this ...
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1answer
366 views

Should a welded connection between strut and waler be designed to take compression load?

Temporary structures are usually constructed in a less precise manner than permanent structures. This is more so in a braced deep excavation where the walls are in constant motion as the excavation ...
5
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1answer
15k views

Effective Throat of Flare-Bevel Weld with Reinforcing Fillet

Occasionally I have to design T-connections between rectangular tube steel (HSS) members where I have a flare-bevel weld between the corner of the tube and the connecting flat member. If the weld ...
10
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1answer
3k views

How do I calculate the strength of a weld joining two crossed rods?

While considering this recent question, I started wondering how to determine the strength of the welds in the steel mesh. As AndyT points out in his comment: The welds at the connections are only ...