[An...] Posted May 28, 2020 Share Posted May 28, 2020 See attached.Pic_2-22.pdf Link to comment Share on other sites More sharing options...
[De...] Posted May 28, 2020 Share Posted May 28, 2020 I am going out on a limb here, but my guess is the thought is if you call something out as a fillet radius it is simply not that critical. The goal of a fillet radius is to have a radius in the corner rather than a sharp corner, and most manufacturing methods create a fairly consistent radius. If it were absolutely critical that the radius was a perfect radius they could call out form or profile of the radius to control it to whatever tolerance they actually required. Link to comment Share on other sites More sharing options...
[Cl...] Posted May 28, 2020 Share Posted May 28, 2020 Please sign in to view this quote. In aerospace this is a "Modified Radius". Link to comment Share on other sites More sharing options...
[He...] Posted May 29, 2020 Share Posted May 29, 2020 Please sign in to view this quote. Probably to simulate the inspection result that https://static-content.cromwell.co.uk/images/854_854/g/jeeps/325/mit3253221b.jpg will produce. Unfortunately the crescent shaped tolerance zone is very small towards the ends. But it is possible to measure. Personally I measure curves with a segmented tolerance zone and tolerance bestfit. Please sign in to view this quote. That depends on the customer. Some only uses ASME Y14.5. Some have a shitload of different definitions that is not to be found in any national standards.Radius_Curve_nom.txt Link to comment Share on other sites More sharing options...
[Cl...] Posted May 29, 2020 Share Posted May 29, 2020 Please sign in to view this quote. It's been many years, bit I believe the "Modified Radius" is used by Pratt & Whitney? Link to comment Share on other sites More sharing options...
[Ke...] Posted May 29, 2020 Share Posted May 29, 2020 Please sign in to view this quote. Any chance you have a work instruction or tutorial for this evaluation method? Asking for a friend... the friend is me. Link to comment Share on other sites More sharing options...
[He...] Posted May 29, 2020 Share Posted May 29, 2020 Please sign in to view this quote. Unfortunately not the complete solution. I don't think my employer would like that. But you can create segmented tolerances from other curves by following the attached PDF.Segmented tolerances.pdf Link to comment Share on other sites More sharing options...
[Mi...] Posted June 1, 2020 Share Posted June 1, 2020 Isn't this the radius callout with the xyz locations constrained? Link to comment Share on other sites More sharing options...
[An...] Posted June 1, 2020 Author Share Posted June 1, 2020 Please sign in to view this quote. Henrik,hello? Link to comment Share on other sites More sharing options...
[He...] Posted June 1, 2020 Share Posted June 1, 2020 Please sign in to view this quote. Huh? Link to comment Share on other sites More sharing options...
[Jo...] Posted June 1, 2020 Share Posted June 1, 2020 Please sign in to view this quote. So, Would "radius measurement" achieve this ? Min, Max results from the center ? The shape of tolerance zone would not matter. Link to comment Share on other sites More sharing options...
[Da...] Posted June 2, 2020 Share Posted June 2, 2020 Any Radius tolerance of any ± makes that shape of Tolerance ZoneCapture.JPG Link to comment Share on other sites More sharing options...
[Da...] Posted June 2, 2020 Share Posted June 2, 2020 The Only thing I have a question of is what do you do with the unbounded area? Area marked in orangeCapture.JPGCapture1.JPG Link to comment Share on other sites More sharing options...
[Da...] Posted June 2, 2020 Share Posted June 2, 2020 Any thoughts on how you deal with this in Y14.5 ? Link to comment Share on other sites More sharing options...
[An...] Posted June 3, 2020 Author Share Posted June 3, 2020 See attached.Contribution_03_06_2020.pdf Link to comment Share on other sites More sharing options...
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