3 Replies Latest reply on Jul 22, 2013 6:50 PM by Jerry Steiger

    CURVATURE ANALYSIS FAILS ME

    Samio Roi

      curvature.png

       

      Hey guys,

      I was working on a project in which it is of utmost important that the curvature is smoothen or it might crack at that point. I have use surface tooling to make the model. It would be of much appreciated if someone could just help me with this.

      Thank you

        • Re: CURVATURE ANALYSIS FAILS ME
          Alin Vargatu

          Post the model.

          • Re: CURVATURE ANALYSIS FAILS ME
            John Burrill

            Sami,

            the problem is you have a combination of a profile with no sharp corners and a profile with four sharp corners.  You can't add fillets to your final result because one profile has no breaks in tangency and you can't eliminate the sharps because your other profile has four singularities.

            What you'll need to do is either remove the rounds from your pan-handle profile or add rounds to the corners of the profile on the cylindrical body.

            In this specific case, you probably need to do the latter using split lines to define wher eyou want your blends to land on the main body, like this:

            BOUNDARY_SRF_BLENDING.png

            I uploaded the model if you want to see how I set it up.

            • Re: CURVATURE ANALYSIS FAILS ME
              Jerry Steiger

              Samio,

               

              Are you worried about the part cracking, or are you worried about the mold that will make the part cracking? Sharp internal corners cause stress concentrations, so the mold for your part might crack. Sharp external corners don't cause stress concentrations, so your part should be safe from that concern.

               

              Jerry S.