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CMK

This document summarizes the results of a machine capability study for a turning operation that produces rivet headed pins. It shows the results of 10 continuous samples measuring the diameter characteristic, with measurements ranging from 2.990 to 2.993. The process capability indices Cm and Cpk were calculated to be 2.118 and 2.090 respectively, indicating the process is well capable of producing parts within specifications.

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Shankar Mano
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3K views2 pages

CMK

This document summarizes the results of a machine capability study for a turning operation that produces rivet headed pins. It shows the results of 10 continuous samples measuring the diameter characteristic, with measurements ranging from 2.990 to 2.993. The process capability indices Cm and Cpk were calculated to be 2.118 and 2.090 respectively, indicating the process is well capable of producing parts within specifications.

Uploaded by

Shankar Mano
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLS, PDF, TXT or read online on Scribd
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MACHINE CAPABILITY STUDIES

Machine : Automats
Part Name: RIVET HEADED PIN Machine No :
Part No.: 1 463 123 479 USL : 2.997
Operation : TURNING LSL : 2.987
Characteristic : DIA Specification : 3.00-0.003-0.013
DATA Tol 0.010
X1 2.992
Continuous Samples Range 0.002
TIME
1 2.990 2.993 2.992 2.993 2.993 2.991 2.993 2.990 2.993 2.992
2 2.991 2.991 2.992 2.993 2.993 2.990 2.993 2.993 2.992 2.991
3 2.990 2.992 2.992 2.993 2.993 2.993 2.993 2.993 2.992 2.993
4 2.991 2.992 2.993 2.993 2.992 2.993 2.993 2.992 2.993 2.991
5 2.990 2.992 2.992 2.992 2.992 2.992 2.991 2.993 2.993 2.990
X 2.990 2.992 2.9922 2.9928 2.9926 2.9918 2.9926 2.9922 2.9926 2.99146
R 0.001 0.002 0.001 0.001 0.001 0.003 0.002 0.003 0.001 0.003
S 0.001 0.001 0.000 0.000 0.001 0.001 0.001 0.001 0.001 0.001
Result `
Process Capability Cm = 2.118173
Process Capability Indx Cmk = 2.090

2.993
2.992
2.991 X
2.990
2.989
1 2 3 4 5 6 7 8 9 10

0.001
0.001
0.001
0.001 S
0.001
0.000
0.000
0.000
1 2 3 4 5 6 7 8 9 10
PREPARED BY : APPROVED BY :

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