R
I was asked to help with a Gage R&R that was done with a prototype gage.
The tolerance that they are measuring here is very tight. +/- .025mm
This process as far as I know has NEVER been stable, and they have always had to do a 100% to 200% inspection using Jo-Blocks for min and max.
They want to start doing SPC on this characteristic in hopes of measuring some sort of improvement, but needed to come up with a gage capable of measuring such a tight tolerance.
The prototype is a gage that uses lasers to measure the diameter of a part compared to a master, and gives a reading on how different each part is.
I am going to attach the Report from Minitab, I would appreciate anyones thoughts on this.
Most of the parts in the study look to be out of tolerance, but that isnt suprising based on what they have been telling me.
I know as a rule you are supposed to take parts that span normal process variation, and they should come from a stable process?
Is there any value in this study as an attempt to discern if this gage would help them at all?
View attachment B800 REPORT GAGE R&R.doc
The tolerance that they are measuring here is very tight. +/- .025mm
This process as far as I know has NEVER been stable, and they have always had to do a 100% to 200% inspection using Jo-Blocks for min and max.
They want to start doing SPC on this characteristic in hopes of measuring some sort of improvement, but needed to come up with a gage capable of measuring such a tight tolerance.
The prototype is a gage that uses lasers to measure the diameter of a part compared to a master, and gives a reading on how different each part is.
I am going to attach the Report from Minitab, I would appreciate anyones thoughts on this.
Most of the parts in the study look to be out of tolerance, but that isnt suprising based on what they have been telling me.
I know as a rule you are supposed to take parts that span normal process variation, and they should come from a stable process?
Is there any value in this study as an attempt to discern if this gage would help them at all?
View attachment B800 REPORT GAGE R&R.doc
