Slitting Process Capability of Cut Width, Arlin BUSBAR3-12

Using a precision laser micrometer a study was completed to determine the process capability slit width tolerance. The tight tolerance was uniquely important to the custom application. All data showed Arlin’s capability met and exceeded the custom requirements. The complete data is listed below.

—— Within
– – – Overall

Process Data
LSL 0.116
Target *
USL 0.12
Sample Mean 0.118263
Sample N 30
StDev(Within) 0.000453926
StDev(Overall) 0.000457303
Potential (Within) Capability
Cp 1.47
CPL 1.66
CPU 1.28
Cpk 1.28
Overall Capability
Pp 1.46
PPL 1.65
PPU 1.27
Ppk 1.27
Cpm *
Observed Performance
PPM < LSL 0.00
PPM > USL 0.00
PPM Total 0.00
Exp. Within Performance
PPM < LSL 0.31
PPM > USL 65.23
PPM Total 65.54
Exp. Overall Perfromance
PPM < LSL 0.37
PPM > USL 73.04
PPM Total 73.42