est practice-1 ,→ Painting Supplier ac Assy -oQc(Customer) Logistics improvement PCB Define Voice of Customer Vedrccuand supervisomgrgeeaing Measure Plan change Everyday Stock is not enoug Invoice Load way Analysis Can not unload in stock Invoice check is difficult Improve Elevator is not enough Unloading Packing Time too long Ay Loadingtool Contro Forklift is not enough Checking irregulars training for loader Load tools Waiting every procedure Stock manage Check time conflict Stock Poor loading vehicle Incoming check time Communicate o inspect system Stack management 5/19
6s Vendor and supervisor meeting Focus Improve Invoice Unloading Checking Load tools Stock Communicate Loading tool Load way Stock manage inspect system ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Define Measure Analysis Improve Control Voice Of Customer Plan change Everyday Stock is not enough Can not unload in stock Invoice check is difficult Elevator is not enough Packing Time too long Forklift is not enough irregulars training for loader Broken Box Waiting every procedure Check time conflict Poor loading method Poor loading vehicle Incoming check time Poor part quality Stack management ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Logistics improvement Best practice-1 Supplier IQC Painting PCB Ass’y OQC Customer 5/19 D M A I C
est practice.1 ,→ Painting Supplier ac Assy -oQc(Customer) Logistics improvement. PCB One-way ANOVA: waiting versus vendor Define Press 253625457130 Tota|101346088 Measure dividual 95%Cls For Mean on Pooled stDe 8:0010:0013:0015:0017:0019:00 Analysis Two-way ANOVA: waiting versus time, part Analysis of Variance for waitir en168028 Source prove 523546470910.200.001 63800.00(-*-) 2230211512.490.132 Error Control Total 17,30467 Indivdual 95% CI Mean 60120180240 Dotplots of waiting by vendor are ndicated by ines) 100 Individual 95% CI lean -+ press 0.016.032.048.0 a 3235i55 6/19
Best practice-1 6s Define Measure Analysis Improve Control Waiting for … 20 25 30 35 40 Target USL Process Capability Analysis for EA/Hour PPM Total PPM > USL PPM < LSL PPM Total PPM > USL PPM < LSL PPM Total PPM > USL PPM < LSL Ppk PPL PPU Pp Cpm Cpk CPL CPU Cp StDev (Overall) StDev (Within) Sample N Mean LSL Target USL 998775.93 998775.93 * 997842.96 997842.96 * 1000000.00 1000000.00 * -1.01 * -1.01 * * -0.95 * -0.95 * 3.73220 3.96161 30 31.3074 * 0.0000 20.0000 Overall Capability Observed Performance Exp. "Within" Performance Exp. "Overall" Performance Potential (Within) Capability Process Data Within Overall Ppk=-1.01 Miscellaneous ratio EA/h One-way ANOVA: make invoice, invoice, inspection, check, stock, recover Analysis of Variance Source DF SS MS F P Factor 5 908047 181609 70.14 0.000 Error 138 357333 2589 Total 143 1265379 Individual 95% CIs For Mean Based on Pooled StDev Level N Mean StDev --+-----+-------+-----+- make inv 24 14.70 5.71 (--*-) invoice 24 21.98 10.96 (--*-) inspecti 24 15.06 2.41 (--*-) check 24 26.75 15.64 (-*--) stock 24 229.85 122.93 (--*-) recover 24 8.27 4.47 (--*--) --+-------+-------+-----+---- Pooled StDev = 50.89 0 80 160 240 Make invoice Inspect Recover part Stock Check unload Invoice check Logistics improvement Supplier IQC Painting PCB Ass’y OQC Customer make inv invoice inspecti check stock recover 0 100 200 300 400 500 Boxplots of make inv - recover (means are indicated by solid circles) 8:00 10:00 13:00 15:00 17:00 19:00 111 55 136 12 7 15 21 101 40 9 16 9 2 0 1 0 2 6 Box Inject Press Two-way ANOVA: waiting versus time, part Analysis of Variance for waiting Source DF SS MS F P time 5 23546 4709 10.20 0.001 part 2 2302 1151 2.49 0.132 Error 10 4619 462 Total 17 30467 Individual 95% CI time Mean -------+---------+---------+---------+---- 100 11 (------*------) 130 54 (------*-----) 150 11 (------*------) 170 3 (------*------) 190 0 (------*------) 800 100 (------*------) -------+---------+---------+---------+---- 0 40 80 120 Individual 95% CI part Mean --+---------+---------+---------+--------- box 29.2 (-----------*-----------) inject 16.5 (-----------*------------) press 44.2 (------------*-----------) --+---------+---------+---------+--------- 0.0 16.0 32.0 48.0 One-way ANOVA: waitingp versus vendor Analysis of Variance for waitingp Source DF SS MS F P vendor 10 298536 29854 57.13 0.000 Error 91 47551 523 Total 101 346088 Individual 95% CIs For Mean Based on Pooled StDev Level N Mean StDev --+---------+---------+---------+---- daxian 7 99.60 0.40 (--*-) douxing 9 74.40 9.01 (-*--) geleide 9 223.80 0.00 (-*--) henan 7 89.60 0.60 (--*--) lianhe 9 197.60 28.93 (--*-) lianhua 18 188.60 48.58 (*-) nix 9 63.80 0.00 (--*-) sanyue 9 124.80 2.77 (--*-) xian an 9 89.00 0.00 (--*-) xianhe 9 92.80 0.69 (-*--) xushi 7 155.60 1.60 (--*--) --+---------+---------+---------+---- Pooled StDev = 22.86 60 120 180 240 daxian douxing geleide henan lianhe lianhua nix sanyue xian an xianhe xushi 50 150 250 vendor waitingp Dotplots of waitingp by vendor (group means are indicated by lines) 6/19 D M A I C