Sheet Metal Punch Angle

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Sheet Metal Punch Angle

    It seems as though I have read on the forum something concerning the ability to measure the tooling angle of a punched sheet metal hole. Am I making this up? I am working with an engineer who insists on measuring the angle of a hole in .048" sheet metal.
    ["Paper is poverty,... it is only the ghost of money, and not money itself." --Thomas Jefferson ][/SIGPIC]

  • #2
    BwaHaHa
    sigpic 1.61803399Δ
    ASSIMILATE INTERGRATE SYNTHESIZE

    Comment


    • #3
      I would measure perpendicularity & parallellism too.....just messin with ya
      sigpic.....Its called golf because all the other 4 letter words were taken

      Comment


      • #4
        Tell him you need to check the punch (tooling), Not enough material to get a accurate check with cmm, or you could and try a shadowgraph by sectioning the art.
        sigpic


        Was
        Pc-dmis 3.5 MR1 B & S 2009 MR1

        Now
        2010 MR3

        Comment


        • #5
          I seem to remember Matt talking about this at length sometime. Too bad he's on vacation this week.

          Comment


          • #6
            Originally posted by Bob Pierce View Post
            I am working with an engineer who insists on measuring the angle of a hole in .048" sheet metal.
            There's your problem right there.
            <internet bumper sticker goes here>

            Comment


            • #7
              If you are refering to the breakage on a punched hole, the rule is 10% so if you have a .500 hole in that .048 sheetmetal the blow out side of the hole will be .510. And the .500 will only be about .016 inch thick on the punched side, and thats where you need to be to check true position. I see more mistakes made because the pre-hits and depth are not used correctly,. This is also where a lot of error in hole size is made. There is no real angle per say, its where and how it breaks out.
              sigpicSummer Time. Gotta Love it!

              Comment


              • #8
                Originally posted by Bob Pierce View Post
                It seems as though I have read on the forum something concerning the ability to measure the tooling angle of a punched sheet metal hole. Am I making this up? I am working with an engineer who insists on measuring the angle of a hole in .048" sheet metal.
                Is that a C'sink hole? Or He just want to check the "break"?
                sigpicIt's corona time!
                737 Xcel Cad++ v2009MR1....SE HABLA ESPAƑOL

                Comment


                • #9
                  Originally posted by Roberto View Post
                  Is that a C'sink hole? Or He just want to check the "break"?
                  Good question, but a C'sink on .048 sheetmetal!
                  sigpicSummer Time. Gotta Love it!

                  Comment


                  • #10
                    Stick a pin in it, measure the angle with a protractor and tell him to go away.
                    Lately, it occurs to me
                    What a long, strange trip it's been.

                    2017 R1 (Offline programming)

                    Comment


                    • #11
                      Originally posted by John Riggins View Post
                      Stick a pin in it, measure the angle with a protractor and tell him to go away.

                      I like it!
                      sigpicSummer Time. Gotta Love it!

                      Comment

                      Related Topics

                      Collapse

                      • Misfit
                        Sheet Metal Measuring
                        by Misfit
                        Is there a sheet metal application or program add on for PC-DMIS? I thought I heard mention of it in one of my training courses. We're measuring 14-20ga...
                        12-01-2010, 02:13 PM
                      • matl59
                        Creative suggestions on probing sheet metal
                        by matl59
                        Im working with a gantry style machine and a large cylindrical part with a sheet metal section. In the sheet metal all the way around the circumference...
                        11-11-2009, 12:27 PM
                      • d.evans
                        Sheet Metal
                        by d.evans
                        I understand that PCDMIS CAD++ has the ability to find sheet metal features when they aren't where they are supposed to be because of the inherent inconsistency...
                        06-08-2006, 01:22 PM
                      • sbd_80
                        Sheet Metal Options
                        by sbd_80
                        Hallo.
                        Does anyone know the function and influence of sheet metal options? You find them as an addtional item in nearly all parametic features...
                        02-15-2008, 09:05 AM
                      • drssds
                        Sheet Metal work settings
                        by drssds
                        Is there any preset settings in PCDMIS for checking sheet metal work to help with variation from piece to piece?
                        (Hit and Retract distances for...
                        02-24-2016, 03:09 PM
                      Working...
                      X