Testing the Concavity of a surface
Close
Login to Your Account
Results 1 to 7 of 7
  1. #1
    Join Date
    Jun 2020
    Country
    UNITED STATES
    State/Province
    California
    Posts
    1
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default Testing the Concavity of a surface

    Hello all,
    Any recommendations on tools that i can purchase to measure the concavity of striking face of the ball peen hammer? I am also looking for tools to measure the chamfer angle and the width. Thanks in advance.

  2. #2
    Join Date
    May 2019
    Country
    UNITED STATES
    State/Province
    Michigan
    Posts
    1,402
    Post Thanks / Like
    Likes (Given)
    387
    Likes (Received)
    627

    Default

    I thought ball peen hammers have a convex face.......was I wrong all this time?

    Radius gages? McMaster-Carr

  3. Likes TeachMePlease liked this post
  4. #3
    Join Date
    Sep 2006
    Location
    Stillwater, Oklahoma
    Posts
    1,481
    Post Thanks / Like
    Likes (Given)
    110
    Likes (Received)
    813

    Default

    Quote Originally Posted by ChipSplitter View Post
    I thought ball peen hammers have a convex face.......was I wrong all this time?

    Radius gages? McMaster-Carr

    No, you could be right. Just beat the living shit out of a piece of sheet metal, then use one of those little lens measuring devices and average the readings. It ought to be fairly close.

  5. #4
    Join Date
    Mar 2019
    Country
    UNITED KINGDOM
    Posts
    207
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    40

    Default

    Shadow graph can do both of those.

  6. #5
    Join Date
    Jan 2007
    Location
    Flushing/Flint, Michigan
    Posts
    8,767
    Post Thanks / Like
    Likes (Given)
    469
    Likes (Received)
    7207

    Default

    Both?
    How do you do a concave face on a round part using Shadow graph?
    Bob

  7. #6
    Join Date
    May 2009
    Location
    Canandaigua, NY, USA
    Posts
    3,017
    Post Thanks / Like
    Likes (Given)
    151
    Likes (Received)
    1381

    Default

    Buy or make a spherometer. It's just 2 or 3 contact points with a dial indicator in the center. You're typing this on a computer so you have an easy way to calculate the radius from the dial drop or raise.

  8. #7
    Join Date
    Mar 2019
    Country
    UNITED KINGDOM
    Posts
    207
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    40

    Default

    Machinists Putty!


Tags for this Thread

Bookmarks

Posting Permissions

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