7DiamondProcess七颗钻石流程.pptxVIP

;;; ; ; ;; ; ;; ;;; ;Project title: Poor adjustment of RR door panel 805-830 Leader: Pedro Aranda Alfaro Sponsor:Juan Carlos Licea Area: VAET Coach: Leonardo Chávez salcedo Initial date: oct-04-2002 Final date: oct-29-2002 Problem description: This month it was reported by the shipping lot in USA a problem of quality existed in the 805/830 vehicles. The problem is the poor adjustment in RR door panel. Projects statement: Find and improve the Red X that produce the poor adjustment in the RR door panel for the model 805/830 in Silao Assembly plant. Strategy: We initiated this project using the model to model strategy, because there was a good contrast and good leverage based on multi-vari see pag 6. Measurement system: As measurement system a Force gage was used. This measurement system passed the isoplot with DR=13.6, DM=1.0 lbs, and DP=13.6 lbs (see page 4) ; ;Project Definition Tree/项目定义树;Solution tree项目解决树;DM = 1.0 lbs DP = 13.6 lbs DR = 13.6 Passed Isoplot ;POINT TO POINT;Multi - vari;Component search;规则Rule 1. There are complete separation between the BOB and WOW values. 将最好和最坏的值完全分开 规则Rule 2. DYV1R 设Where: R= RBOB + RWOW 2 那么then RBOB=1.9 RWOW=1.2 R= 1.9 + 1.2 = 3.1 = 1.55. 2 2 DY = YBOB - YWOW = 46.8 - 8.1 = 38.7 如果if DY V1R 那么then 38.7 (0.89) (1.55) 所以so 38.7 1.38 所以满足规则1和规则2的要求so passed Rule 1 and Rule 2 ;Paired Comparison;Passed B vs C with 95% of confidence that the molding door panel is the Red X with complete separation and end count of 6.在 完全分离，End count 为5的情况下， 以95%的置信度通过B v S 表明门板装饰件是Red X;;DOOR FLANGE CURRENT USED;B = Vehicles with new flange longer than 8.5 mm. C = Vehicles with current flange smaller than 7.9 mm. Req: confidence = 95%;CUSTOMER SATISFACTION LIMIT;