1. VARIABLES CONTROL CHART (X & R)
PART #
468P80
CHART # 1
WESTERN ILLINOIS UNIVERSITY
MACHINE
SPECIFICATION LIMITS
ZERO EQUALS
UNIT OF MEASURE
HAAS VFE
12.05 – 11.95
0.01mm
MANUFACTURING ENGINEERING TECHNOLOGY
OPERATION
Between Centers
GAGE
M04 mike
SAMPLE SIZE/ FREQUENCY
5/10min
DATE
TIME
11.95
12.00
12.03
11.98
12.01
11.99
0.08
12.02
11.96
0.07
11.97
0.04
0.06
0.03
0.05
12.04
12.05
11.92
11.94
11.93
7:30
7/02
7:40
7:50
8:00
8:10
8:20
8:30
8:40
8:50
9:00
9:10
9:20
9:30
9:40
9:50 1 2 3 4 5
SAMPLE
MEASUREMENT X R
NOTES
179.77
.81 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
AVERAGES
X BAR
CHART
N=30
T= 15
R= UCL-LCL
I= R/T
RANGE
R CHART
N=15
T= 10
R = UCL
I = R/T