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What joint to use?

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  • genet
    started a topic What joint to use?

    What joint to use?

    Hello everyone,
    Planning a future project out of 22 or 24 g. SS sheet metal that will basically be a funnel shape that will be for Food service use. Initially I had hoped to spin it on a lathe but don't have the expertise to do it this way so have opted to weld it up. The question is- is a butt joint better or a lap joint? The joint doesn't have to be completely smooth but cannot have crevices where food can get trapped. I would appreciate your input.
    Thanks,
    Gene

  • redintn
    replied
    Originally posted by genet View Post
    I wish a had a slip roll or a brake but I'll have to use good ole' fashioned "persuasion"!!!
    Thanks,
    Gene
    Thats gona be tuff, use a butt weld.
    Got a sheet metal shop close by and get them to roll it for you.

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  • genet
    replied
    Originally posted by wrenchnride247 View Post
    I second the butt weld, and grind inside smooth. Do you have a slip roll? This would be the best way to form this. Using a brake is also good.
    I wish a had a slip roll or a brake but I'll have to use good ole' fashioned "persuasion"!!!
    Thanks,
    Gene

    Leave a comment:


  • genet
    replied
    Originally posted by fabricator View Post
    What will be the dimensions ?
    5 1/2 in. diameter opening at the large end, 3 in. at the small end, and 5 inches tall. I have searched high and low for a pre- made one but either the openings were the wrong size or the taper was too steep.
    Thanks,
    Gene

    Leave a comment:


  • wrenchnride247
    replied
    I second the butt weld, and grind inside smooth. Do you have a slip roll? This would be the best way to form this. Using a brake is also good.

    Leave a comment:


  • aametalmaster
    replied
    I would butt it with a small gap then grind it smooth on the inside...Bob

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  • fabricator
    replied
    What will be the dimensions ?

    Leave a comment:

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