请教CPK的问题
请教CPK问题
数据如下:
Nominal 369.000 Tolerance +1.0000/-.0000 Minimum spec 369.0000 Maximum spec 370.0000
value 1 value 2
1 368.7 368.7 Mean 368.56917
2 368.5 368.9 Sigma 0.18180
3 368.6 368.5 6Sigma 1.09081
4 368.72 368.8 Cp 0.917
5 368.5 368.4 k 1.862
6 368.62 368.1 Cpk -0.790
7 368.46 368.22 color=Red]Cpk 2.62343
8 368.54 368.68
9 368.42 368.5
10 368.62 368.78
11 368.64 368.62 one sideds pec18.81811 18.1818 9262
12 368.4 368.67
13 368.66 368.9
14 368.2 368.7 Sig.(upper)7.87030
15 368.42 368.5 Sig. (lower)-2.36980 [/u]
16 368.7 368.6
17 368.78 368.69
18 368.5 368.32
19 368.6 368.48
20 368.7 368.7
21 368.36 368.7
22 368.7 368.68
23 368.72 368.74
24 368.46 368.5
25 368.32 368.78
26 368.4 368.6
27 368.3 368.6
28 368.82 368.2
29 368.3 368.46
30 368.78 368.69
TOTAL DEFECT DEFECT SIGMA
DEFECTS OPPORTUNITIES PPM LEVEL
我公司是专业生产模具的,模具零件没有要求做CPK,但现在很客户要求我们做首件时做CPK报告,本人有几个很菜的问题请教大家,有颜色标记的是什么意思?单件生产的首件要不要做PPM?谢谢!
数据如下:
Nominal 369.000 Tolerance +1.0000/-.0000 Minimum spec 369.0000 Maximum spec 370.0000
value 1 value 2
1 368.7 368.7 Mean 368.56917
2 368.5 368.9 Sigma 0.18180
3 368.6 368.5 6Sigma 1.09081
4 368.72 368.8 Cp 0.917
5 368.5 368.4 k 1.862
6 368.62 368.1 Cpk -0.790
7 368.46 368.22 color=Red]Cpk 2.62343
8 368.54 368.68
9 368.42 368.5
10 368.62 368.78
11 368.64 368.62 one sideds pec18.81811 18.1818 9262
12 368.4 368.67
13 368.66 368.9
14 368.2 368.7 Sig.(upper)7.87030
15 368.42 368.5 Sig. (lower)-2.36980 [/u]
16 368.7 368.6
17 368.78 368.69
18 368.5 368.32
19 368.6 368.48
20 368.7 368.7
21 368.36 368.7
22 368.7 368.68
23 368.72 368.74
24 368.46 368.5
25 368.32 368.78
26 368.4 368.6
27 368.3 368.6
28 368.82 368.2
29 368.3 368.46
30 368.78 368.69
TOTAL DEFECT DEFECT SIGMA
DEFECTS OPPORTUNITIES PPM LEVEL
我公司是专业生产模具的,模具零件没有要求做CPK,但现在很客户要求我们做首件时做CPK报告,本人有几个很菜的问题请教大家,有颜色标记的是什么意思?单件生产的首件要不要做PPM?谢谢!
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laurie88 (威望:2) (广东 东莞) - QWE
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樓主是不是要在新模具的驗收中要求作cpk
如果是的話,