Questions tagged [welding]

Use this tag when the question deals with the process of making a weld. For questions about weld design or the use of welds, use the [welds].

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4
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1answer
3k views

Strongest brazing materials for titanium?

What are the strongest brazing materials for titanium? The main materials I would like to use would be copper or silver, in which case I would like to ask which would form a stronger bond with ...
3
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2answers
2k views

Strength of Welded Joints

When calculating the factor of safety for a fillet weld that is loaded in shear what should be the maximum allowable stress? Some books suggest using the distortion energy (Ssy = 0.577Sy for the ...
3
votes
2answers
99 views

Aluminum for an Ejection Seat Replica

I love ejection seats and the flying contraptions they usually reside in. In fact, I like them so much that I want to make my own, despite my profound lack of training and inexperience with ...
6
votes
1answer
4k views

Schaeffler, De Long, and WRC welding diagrams - which steels can be used?

I am working on a simple program that would help welder to count how much ferrite, austenite etc. there is in weld. I am focusing on stainless steel. I have decided to use 3 graphs: Schaeffler, De ...
2
votes
1answer
549 views

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

I have to build an egg tray. The material used for such trays is 2 mm stainless steel welding rods. When I queried nearby workshops they said a TIG welder is needed to weld such material and it is ...
8
votes
1answer
233 views

Weldability of Pure Tin

The site states that Tin cannot be welded, but after I made some research, I discovered that tin, when alloyed with copper or used as a protective coating for steel, can be welded. My question is why ...
4
votes
2answers
944 views

Penetration depth and weld deposition rate in Welding

What factors affect the penetration depth and weld deposition rate in arc welding? How does polarity affect the penetration depth and weld deposition rate? My lecturer said that penetration depth is ...
9
votes
0answers
233 views

What type of ultrasonic transducer would be suitable for ultrasonic welding? [closed]

Project background: I am working on a project where i need to weld plastic using ultrasonic transducers. Problem: Since I'm still learning engineering, I have a hard time figuring out what all the ...
6
votes
1answer
2k views

What is the process for qualifying a weld between structural steel and stainless steel?

In the US, typical structural steel welding is covered by either AWS D1.1 or AWS D1.5 (bridges). Both of these codes cover a wide range of carbon steels. AWS has a separate code for welding stainless ...
3
votes
1answer
109 views

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

I have been experimenting with building various support tables around press-type spot-welders. These are relatively simple fixures; think of a tabletop with legs under it and devices like sliding ...
13
votes
10answers
14k views

Affixing a thermocouple to a surface

I'm looking for advice on how to attach a thermocouple to a metal surface in a fashion that's relatively temperature resistant (more-so than) glue. I've got some very fine gauge wire on hand to make ...
1
vote
1answer
590 views

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

Some TIG electrodes in use in the early 1970's were marked Thoriated Tungsten and Non-Thoriated Tungsten. What were the specific purposes or properties for these TIG welding electrodes?
5
votes
4answers
681 views

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

The job site requires welding both aluminum and steel (each to themselves only) for different areas of the project. The contractor has a dual purpose wire feed welder (aluminum and steel) but I am ...

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