Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations JAE on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by joshpjost

  1. joshpjost

    Thread Relief Constant

    Can someone identify thread relief constants for sizing thread chamfers and reliefs? I have an old table that provides two thread relief constants, A & B, based on pitch. Here's a similar chart: http://www.bjg-design.com/designbook/thread_reliefs_htm.htm I would like to know how to calculate...
  2. joshpjost

    Rubber Gasket Fabrication Drawing Notes

    Currently have a fabrication drawing for a rubber gasket, Buna-N, 3/32" thick, 60A Durometer. Machine shop is fabricating the gasket. The edges of the gasket are not smooth and the thru holes for mounting fasteners are not clean (looks like a razor knife was used to cut). What can be noted on...
  3. joshpjost

    Gasket Absorbing Oil?

    What is the most appropriate method to specify NBR material on a gasket fabrication layout? Currently, the drawing identifies Buna-N, however given the fact that there are a multitude of "recipes". I want the most oil resistance. I was thinking of specifying the grade and class, for example...
  4. joshpjost

    Gasket Absorbing Oil?

    Utilizing a 3/32" thick Buna-N gasket between cover and housing that contains food grade mineral oil. Gasket is machined to conform to shape of cover and for screw thru holes. Noticing that during disassembly, the gasket loses its form and becomes very wavy. Suspect it is absorbing oil. Is this...
  5. joshpjost

    Dimension Plate Arc Segments

    I am having a hard time trying to understand how a fabricator would inspect a part dimensioned like Scheme A with tight angular tolerance of .06 deg. I expect that the inspection tools would need to be an order of magnitude better than the tolerance. Can you provide an example of an inspection...
  6. joshpjost

    Dimension Plate Arc Segments

    Requesting some input from the community regarding dimensioning of plate arc segments. Design requires fabrication of rings comprised of individual plate segments. Segments will have edge preparations and will be welded together. Careful dimensioning is required to ensure arc segments during fit...
See more

Part and Inventory Search

Back
Top