Results 1 to 2 of 2

Thread: Boundaries & there Purpose

  1. #1

    Join Date
    Jan 2023
    Posts
    1

    Lightbulb Boundaries & there Purpose

    Hi All,
    I've seen plenty of methods to calculate certain boundaries per ASME Y14.5 2009. Can anyone share applicable engineering/design reasons these become very important to know?

    1. (Inner Boundary)
    2. (Outer Boundary)
    3. (Least Material Boundary)
    4. (Max Material Boundary)

    Keep it light & right.
    -Jeff

  2. #2
    Kelly_Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,625
    “Keep it light and right”

    Knowing where the as-manufactured materials boundaries are may be critical to fit and function and sometime form. Thin or thick – know it.

    Inner boundary – clearance or enough material for function (strength).

    Outer boundary - clearance or enough material for function (strength)

    Least Material Boundary – the worst-case boundary that exists on or outside the material of a feature(s) and is defined by the combined effects of size and geometric tolerances. applicable to a Datum feature only (LMC applies to a feature of size related to a datum).

    Maximum Material Boundary - the worst-case boundary that exists on or outside the material of a feature(s) and is defined by the combined effects of size and geometric tolerances. applicable to a Datum feature only (MMC applies to a feature of size related to a datum).

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •