iSixSigma

MSA

Six Sigma – iSixSigma › Forums › Old Forums › General › MSA

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • May 15, 2002 at 2:38 am #29443

    tayebeh
    ★ 20 Years ★
    Member

    accept my best regards
    i have a problem about MSA
    if my system incld 3gages and 2 appraiser for measurment 1 dimension,should we calculate reproducibility of 3 gages?
    if yes,what is its formula?
     

    0
    May 15, 2002 at 11:44 am #75458

    R.Venkataramana
    ★ 20 Years ★
    Participant

    Hi
    As you are calculating reproducibility of your three gages, you need to calculate them separately. each gauge will  contribute differently to your total gauge error.

    0
    May 15, 2002 at 1:00 pm #75461

    Joy Cowling
    ★ 20 Years ★
    Participant

    I would first make sure that each gage is acceptable separately.  (1 gage, 2 operators).  Then I would do an R&R using the gages as operators.  (3 gages, 1 operator).  This will give you a reproducibility number for operators AND for the gages.
    Joy

    0
    May 15, 2002 at 5:36 pm #75472

    TCJ
    ★ 20 Years ★
    Member

    taybeh,
    You probably want to include more than one dimension.  You gage needs to be able to discriminate over a range of values or the only variation will be in the measurement system.

    0
    May 15, 2002 at 6:02 pm #75475

    TM
    ★ 20 Years ★
    Member

    The rule of thumb I have used for this is compatibility. I would ensure that the average of each gage across all parts is less than 10% of the total variation or the total tolerance.
    Another method would be hypothesis testing on the two systems.

    0
    June 20, 2002 at 7:28 pm #76544

    tayebe
    ★ 20 Years ★
    Member

    dear
    hi and tanks
     I thik
    k that i have to calculate three gages R&R together

    0
  • Author
    Posts
Viewing 6 posts - 1 through 6 (of 6 total)

The forum ‘General’ is closed to new topics and replies.