Modelling a fillet weld

Discussion in 'Pro/Engineer & Creo Elements/Pro' started by dakeb, Nov 25, 2003.

  1. dakeb

    dakeb Guest

    Anyone got any ideas on how to model a realisitic looking fillet weld?
     
    dakeb, Nov 25, 2003
    #1
  2. dakeb

    ms Guest

    SolidWorks!
     
    ms, Nov 26, 2003
    #2
  3. I would suggest building a feature which is reference around a point which
    is placed at a relative distance from the start of the edge (might have to
    do this on individual edges or create a copied curve) which represents your
    weld edge. This relative distance can then be used to pattern the feature
    along the edge.

    You would have to look at the weld first and think what an individual
    element would look like in isolation and how these would overlap and at what
    pitch distance.

    Sean

    --


    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Sean Kerslake
    Dept. Design & Technology
    Loughborough University
    Loughborough
    LE11 1RN

    01509 228317
     
    Sean Kerslake, Nov 26, 2003
    #3
  4. dakeb

    dakeb Guest

    Looks to me like it's complicated. Best attempt was to construct a
    triangular fillet, then on the visible surface to draw a curved datum going
    across it, then to pattern the curve along the length of the fillet, then to
    create a cut to sweep along the curve, then to ref pattern the cut along the
    fillet.

    It works, but it looks too regular. I would have liked it to look more
    realistic.
     
    dakeb, Nov 26, 2003
    #4
  5. Why you do not use proWeld ??. I think that it comes with the basic
    fundation.
     
    pitosYflautas, Nov 26, 2003
    #5
  6. dakeb

    dakeb Guest

    I think it only creates a simple flat surface, not a relaistic weld.
     
    dakeb, Nov 26, 2003
    #6
  7. dakeb

    David Janes Guest

    :
    : : > I would suggest building a feature which is reference around a point which
    : > is placed at a relative distance from the start of the edge (might have to
    : > do this on individual edges or create a copied curve) which represents
    : your
    : > weld edge. This relative distance can then be used to pattern the feature
    : > along the edge.
    : >
    : > You would have to look at the weld first and think what an individual
    : > element would look like in isolation and how these would overlap and at
    : what
    : > pitch distance.
    :
    : Looks to me like it's complicated. Best attempt was to construct a
    : triangular fillet, then on the visible surface to draw a curved datum going
    : across it, then to pattern the curve along the length of the fillet, then to
    : create a cut to sweep along the curve, then to ref pattern the cut along the
    : fillet.
    :
    : It works, but it looks too regular. I would have liked it to look more
    : realistic.
    :
    What's your attitude toward weld symbols and just noting such things on drawings?
    It's actually one of the few things I like about still having drawings is Pro/e's
    extensive collection of weld symbols. If you know how to use them and your welders
    know how to read them, you can document any kind of weld that exists. Are you
    running simulations on welds? Otherwise, what's the point. But assuming this is
    necessary, it should be a part, placed in assembly, so that it can have its own
    material properties, and for realism, more complete and accurate description of
    other things like depth of penetration. And you'd probably use surfaces based on
    'wavy' curves through points (at the meniscus), end curves and cross curves to
    control the shape. But, to do this, I'd need someone breathing down my neck, hot
    for it, or to have way more time on my hands than I knew what to do with (and even
    being unemployed, I don't have that much time.)-/

    David Janes
     
    David Janes, Nov 26, 2003
    #7
  8. dakeb

    dakeb Guest


    It is for no other reaon than to generate a realistic rendered image of the
    part. Its a small part so the visibility of the bead will be significant. I
    wouldn't make it a part of an assembly because I don't have an assembly part
    number for that component, and it will be received in stores as a single
    part. I also don't want to spend hours creating surfaces, I thought perhaps
    there may a bead model out there somewhere I could blag and modify.
     
    dakeb, Nov 27, 2003
    #8
  9. dakeb

    David Janes Guest

    <snip>
    : It is for no other reaon than to generate a realistic rendered image of the
    : part.

    The only time I've seen weld represented as a feature was on Caterpillar truck
    struts which went from 3 feet long up to 9 feet fully assembled and weighing over
    3 tons. The welds needed to be represented for inspection and analysis. They just
    made it a a rib type feature, but a real thick rib and of course, flat.
    'Realistic', in this case, was large welds, machine filled with rod big enough,
    and hot enough, that they came out very smooth to begin with, then they were snag
    ground and painted so you could hardly tell they were welds.

    : Its a small part so the visibility of the bead will be significant. I
    : wouldn't make it a part of an assembly because I don't have an assembly part
    : number for that component, and it will be received in stores as a single
    : part.

    Then why not make it an assembly feature, an eliptically shaped, extruded surface
    that 'joins' both parts. Without doing something like a swept blend or VSS, I
    don't know how you'd give the impression of a 'lumpy' bead. And that sounds like
    too much trouble. What you came up with is probably as good as anything I could
    suggest.

    Since this is a render issue, had you thought of making the weld feature straight,
    then using a rendering material to make it look like weld bead with the effect
    created by shading. A photo, perhaps.

    David Janes
     
    David Janes, Nov 27, 2003
    #9
  10. dakeb

    Mike Guest

    One method you might consider for creating a 'Realistic' weld is Free
    Form .
    Feature, Create, Surface, (new), Advanced, and Done. From the ADV FEAT
    OPT menu select Free Form and Done. or see link below
    http://www.ptc.com/cs/cs_21/howto/suf805/suf805.htm
    Best of luck and Happy Thanksgiving to All

    Mike C
     
    Mike, Nov 27, 2003
    #10
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.