1. IE 405 QUALITY MANAGEMENT RECITATION 6

2. SampleMissing CapScratches Flow line sExcess FlashNumber of Defects 1664723 2341816 3850821 4331512 5933621 6313512 74323 85261023 9447621 10653620 11414716 12363820 132321118 14303511 15533718 16501612 17513716 18434516 19633921 20223512 214121017 226241224 235161224 212813 25217515 TOTALS1096480181434

3. Rec 6 Q1

10. The highest contributors of defects is excess flash, missing cap and flow lines. Excess flash also has the highest defect rate in the individual c chart. Excess flash can be reduced by maintaining the machinery or equipment, in order to reduce the flash rate. An important parameter missing cap, can be avoided by warning the worker(s) who are responsible for putting on the cap. It is simpler and easier to maintain the caps on the bottles than is to reduce the other defects.

11. Rec 6 Q2 USL=12.55mm LSL=12.45mm Derive Z value from 12.45-12.50/0.02= -2.50 a) Scrap rate of 0.0062 or 0.62% Rework rate (due to symmetry) is 0.62% also.

12. b) Area= The value is with respect to LSL not USL.Because the z=-3.59 value is calculated with respect to scrap not rework. -3.59= 12.45- m/0.02 m=12.52mm c) Rework 12.55-12.52/0.02= 1.50 1- 0.9332= 6.68%

13. Rec6 Q3 Sample Numberx1x2x3x4XR 1691015109 2 46117,757 3781057,55 48961397 59107139,756 6121110 10,752 716108910,758 8751046,56 99781295 101516101313,56 11812141612,58 126139119,757 13169131513,257 14713101210,56 151171016119 161510111412,55 179812109,754 18157101110,758 19869128,756 201415121614,254 TOTAL207,5125

14. Q3 X Chart

15. R chart

16. Rec 6 Q3 Cp measures POTENTIAL CAPABILITY Why? Does not take into account where the process mean is located relative to the specifications Cpk measures ACTUAL CAPABILITY It takes process centering into account

17. Specifications: LSL:-50 USL: 50 with respect to formula From chart derive Rbar/d2= 3.035 Cp=100/3.02*6= 5.50 1/5.50 = 0.1818 Covers 18% of the specification band.

18. Cpk= min(Cpu, Cpl) Cpu= (50-10.375/3*3.03)=4.359 Cpl= (10.375- (-50)/3*3.03)=6.64 Min (4.359, 6.64)= Cpk Choose 4.359 Since Cp>Cpk process is out of center