Edge Weld Joint

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I'm a senior mechanical engineering major. Currently I'm having to analyze welds for my finite element class. Each group member was assigned a different type of weld, and I selected the edge weld. What I'm hoping y'all can help me out with is what are some common applications of this weld? Or is it used so often that it's impossible to narrow it down to one specific scenario? I'm just trying to get an idea of common materials that would be joined in this type of weld, and the load they would be subjected to. Thanks.
Reply:Start in the projects and picture section, look for a thread that's titled 'Show us what you welded today'  You'll find lots of examples of all kinds of welds
Reply:I dont understand how you can be a senior mechanical engineering major and have selected a weld type that you know nothing about?? Surely as a senior mechanical engineer you would have a more knowledgeable idea of a very basic and simple weld??anyway to answer that for you..."​Edge welding joints, a groove type of weld, are placed side by side and welded on the same edge. They are the most commonly replaced type of joints due to build up accumulating on the edges. They are often applied to parts of sheet metal that have edges flanging up or formed at a place where a weld must be made to join two adjacent pieces together."Last edited by Gerry1964; 11-09-2014 at 02:36 AM.
Reply:I was assigned the project and weld type, it was not a choice of my own. We go over welds briefly, but not to any significant degree.
Reply:Originally Posted by mf02297I was assigned the project and weld type, it was not a choice of my own. We go over welds briefly, but not to any significant degree.
Reply:Edge welds are primarily used on materials less then 3mm thick.  With sheet metal the rigidity is obtained by the formed 90 degree bends done before the flanges of the bends are clamped together to be welded.  If you are doing finite element analysis your approach will be much different than other people dealing with fillet and groove welds on plate.  The bends really add to the rigidity of the structure.   Automotive gas tanks commonly use a flanged joint with edge welding or some type of resistance welded seam.   Something else is the flanged part can be spot welded if a sealing weld is not required.  Another trap that I have fallen into is that with aluminum alloys if you just fuse the edges together using the parent metal alloy alone the joint will be less than desired.  Aluminum welds require the addition of filler metal alloy to make a strong joint.  It is very tempting for an aluminum welder when presented with an edge joint to just do an autogenous weld.   In my career I did a lot of work with heavy plate ranging from half inch to one inch (25mm)  sometimes as heavy as 3 inch ( 75mm)  I never ran across any edge joints on plate.
Reply:Originally Posted by lotechmanEdge welds are primarily used on materials less then 3mm thick.  With sheet metal the rigidity is obtained by the formed 90 degree bends done before the flanges of the bends are clamped together to be welded.  If you are doing finite element analysis your approach will be much different than other people dealing with fillet and groove welds on plate.  The bends really add to the rigidity of the structure.   Automotive gas tanks commonly use a flanged joint with edge welding or some type of resistance welded seam.   Something else is the flanged part can be spot welded if a sealing weld is not required.  Another trap that I have fallen into is that with aluminum alloys if you just fuse the edges together using the parent metal alloy alone the joint will be less than desired.  Aluminum welds require the addition of filler metal alloy to make a strong joint.  It is very tempting for an aluminum welder when presented with an edge joint to just do an autogenous weld.   In my career I did a lot of work with heavy plate ranging from half inch to one inch (25mm)  sometimes as heavy as 3 inch ( 75mm)  I never ran across any edge joints on plate.
Reply:So we're looking at bending a piece of sheet metal to fit over where two pieces of sheet metal meet? This project is just aggravating because I'm not really sure where I should start as far as base materials, loads, common applications, etc. All these welds can be used pretty much anywhere, and that makes it difficult to locate reference material for solving a specific case.
Reply:Originally Posted by mf02297So we're looking at bending a piece of sheet metal to fit over where two pieces of sheet metal meet? This project is just aggravating because I'm not really sure where I should start as far as base materials, loads, common applications, etc. All these welds can be used pretty much anywhere, and that makes it difficult to locate reference material for solving a specific case.