The Elsmar Cove Business Standards Discussion Forums More Free Files Forum Discussion Thread Post Attachments Listing Elsmar Cove Discussion Forums Main Page
Welcome to what was The Original Cayman Cove Forums!
This thread is carried over and continued in the Current Elsmar Cove Forums

Search the Elsmar Cove!

Wooden Line
This is a "Frozen" Legacy Forum.
Most links on this page do NOT work.
Discussions since 2001 are HERE

Owl Line
The New Elsmar Cove Forums   The New Elsmar Cove Forums
  Measurement, Test and Calibration
  Sample Range for gage R&R

Post New Topic  Post A Reply
profile | register | preferences | faq | search

UBBFriend: Email This Page to Someone! next newest topic | next oldest topic
Author Topic:   Sample Range for gage R&R
TheOtherMe
Forum Contributor

Posts: 64
From:West Chester, OH USA
Registered: Jul 1999

posted 30 July 1999 01:47 PM     Click Here to See the Profile for TheOtherMe   Click Here to Email TheOtherMe     Edit/Delete Message   Reply w/Quote
Subject: Re: MSA /Staples/Templeton/Johnson
Date: Thu, 29 Jul 1999 09:50:44 -0600
From: ISO Standards Discussion

From: Kevin_Johnson@mail.sel.sony.com (Kevin Johnson)
Subject: RE: MSA /Staples/Templeton/Johnson

Patricia,

Regarding your message below,

> From: Patricia Staples
> Subject: Q: MSA /Staples
>
> Has anyone heard of a requirement within the MSA that the 10 pieces checked
> for R&R have to be within spec?
> My customer said that my R&R was incorrect because I was checking parts
> that were out of spec.
> I told him that I needed to know that my gage was repeatable throughout
> the spec and below the spec. Any comments?
>

The important range to test across is not spec, but rather the range of product variation the instrument will see. You will want to know the components of variability across all "pieces" you will be measuring with this device. If all you product is always in spec, then maybe spec range is meaningful, but only beacause this is the range of the product, not just because of the spec range itself.

However, having said that, it is possible that, for a particular device and product, that the variability could more (or less) outside the spec than within it. So, the R&R numbers could look better or worse, depending on this range. And, this could concern the customer.

I understand your position clearly. I do not really understand the customer's. Do they understand the funamentals behind MSA?

Kevin Johnson
kevin_johnson@mail.sel.sony.com

IP: Logged

All times are Eastern Standard Time (USA)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply Hop to:

Contact Us | The Elsmar Cove Home Page

Your Input Into These Forums Is Appreciated! Thanks!


Main Site Search
Y'All Come Back Now, Ya Hear?
Powered by FreeBSD!Made With A Mac!Powered by Apache!