(Đồ án tốt nghiệp) applying dmaic method to reduce setup time of m8326 product in medical line at II VI vietnam CO, LTD

BỘ GIÁO DỤC VÀ ĐÀO TẠO TRƯỜNG ĐẠI HỌC SƯ PHẠM KỸ THUẬT THÀNH PHỐ HỒ CHÍ MINH ĐỒ ÁN TỐT NGHIỆP NGÀNH QUẢN LÝ CÔNG NGHIỆP APPLYING DMAIC METHOD TO REDUCE SETUP TIME of M8326 PRODUCT in MEDICAL LINE at II-VI VIETNAM CO,.LTD GVHD: NGUYEN THI MAI TRAM SVTH: NGUYEN THI KIM PHUNG MSSV: 16124056 SKL007009 Tp Hồ Chí Minh, 2020 MINISTRY OF EDUCATION AND TRAINING HO CHI MINH UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY OF HIGH QUALITY TRAINING GRADUATE THESIS APPLYING DMAIC METHOD TO REDUCE SETUP TIME of M8326 PRODUCT in MEDICAL LINE at IIVI VIETNAM CO,.LTD Student’s name : Nguyen Thi Kim Phung Student code : 16124056 Grade : 2016 Major : Industrial Management Instructor : MI Nguyen Thi Mai Tram Ho Chi Minh – 2020 Supervisor: Nguyen Thi Mai Tram SUPERVISOR Ho Chi Minh, …………………………………… Supervisor Supervisor: Nguyen Thi Mai Tram Supervisor: Nguyen Thi Mai Tram REVIEWER Ho Chi Minh, …………………………………… Reviewer Supervisor: Nguyen Thi Mai Tram ACKNOWLEDGEMENT It was my fortune to have an internship in II-VI Vietnam as well as great chance for learning and professional development in II-VI Vietnam Being a part of company, I experienced and worked with many professional and kindly people who led me though this internship period with many lessons I also have hearty thanks for Ms Nguyen Thi Mai Tram to support placing my thesis on good grade for her careful and precious guidance in graduate thesis which were extremely valuable for my study both theoretically and practically I express my deepest thanks to Mr Ha Hai Hung – CI manager, Mr.Huynh Anh Tuan manager of System for taking part in useful decision, giving necessary advices and guidance and arranged all facilities to make project easier I choose this moment to acknowledge his contribution gratefully Bearing in mind previous I am using this opportunity to express my deepest gratitude and special thanks to the my mentor Mr.Van Quoc Tien – Production Engineer who in spite of being extraordinarily busy with his duties, took time out to hear, guide and keep me on the correct path and allowing me to carry out my project at their esteemed organization and extending during the training I also appreciate the supporting from engineers, line leaders and operators in System to finish the project I perceive as this opportunity as a big milestone in my career development in Industrial Engineering I will strive to use gained skills and knowledge in the best possible way, and I will continue to work on their improvement, in order to attain desired career objectives Hope to continue cooperation with all of you in the future Sincerely, Nguyen Thi Kim Phung Ho Chi Minh May 5th 2020 Nguyen Thi Kim Phung - 16124056 i LIST OF ABBREVIATIONS ABBREVIATIONS PROJECT SU time CO time WO Traveler Medical line Other line DMAIC 5M1E 5W1H Nguyen Thi Kim Phung - 16124056 ii Supervisor: Nguyen Thi Mai Tram LIST OF TABLES Table Traveler of Medical products in System 17 Table Traveler of Other products (Introduction of System of II-VI Vietnam) 18 Table Tools applicationin project (Synthesize by author) 29 Table Focused Problem Statement as 5W1H 56 Table Focused Problem Statement as 5W1H 57 Table Focused Problem Statement as 5W1H 57 Table Potential causes for long setup time at FPS1 Assembly stage of M8326 59 Table Potential causes for long setup time at FPS2 Inspection stage of M8326 59 Table Potential causes for long setup time at FPS3 Preparation stage of M8326 60 Table 10 Improvement idea for root causes summarisation 68 Table 11 Prioritisation Matrix for solutions 70 Table 12 Build Action Plan for reducing setup time M8326 (Source: Synthesize by author) 72 Nguyen Thi Kim Phung - 16124056 iii Supervisor: Nguyen Thi Mai Tram LIST OF FIGURES Figure Network of II-VI Incorporated worldwide Figure Periodic Table Figure Group II-VI Logo Figure Logo of II-VI Vietnam Co., Ltd Figure Products for Automotive Figure Products Thermal-electric Cooler (TEC) (Introduction of System of II-VI Vietnam) Figure Product Select Comfort Figure Gesture Recognition products 10 Figure Product for DNA test 10 Figure 10 Application of Thermal-electric Cooler (TEC) 11 Figure 11 General organization chart of II-VI Vietnam Co.,ltd 11 Figure 12 Production process diagram at II-VI Vietnam Co., Ltd 14 Figure 13 System Organization of II-VI Vietnam Co.,Ltd 15 Figure 14 Change-over time (Downtime here) 20 Figure 15 Story board of DMAIC project 23 Figure 16 Prioritization Matrix 27 Figure 17 Histrogram chart 29 Figure 18 The Pareto chart illustration 30 Figure 19 Process mapping symbols 34 Figure 20 Setup time per unit by module of Medical line 37 Figure 21 Forecast of quantity for Medical line in months (June – December, 2020) 38 Figure 22 Forecast of setup time for Medical line in next months (June – December,2020) 38 Figure 23 Timer series plot setup time per unit of M8326 by WO (OctoberDecember, 2019) (Source: Synthesize by author) 39 Figure 24 Voice of customer and Critical to quality Matrix Diagram 39 Figure 25 Is & Is not Matrix for problem statement 40 Figure 26 Time series plot setup time of target setting 40 Figure 27 Total hour deduction for setup time improvement 42 Figure 28 Timeline for setup time improvement project 42 Figure 29 Project charter of setup time improvement project 44 Nguyen Thi Kim Phung - 16124056 iv Supervisor: Nguyen Thi Mai Tram Figure 30 Process mapping of setup operation of M8326 at Preparation (retainer 1) 45 Figure 31 Process mapping of setup operation of M8326 at Preparation (retainer well block) 46 Figure 32 Process mapping of setup operation of M8326 at Preparation (retainer 2) 46 Figure 33 Process mapping of setup operation of M8326 at Assembly (Solder and cleaning) 47 Figure 34 Process mapping of setup operation of M8326 at Assembly (In-Inspection) 47 Figure 35 Process mapping of setup operation of M8326 at Assembly (Assemble heatsink) 48 Figure 36 Process mapping of setup operation of M8326 at Assembly (Assemble board) 48 Figure 37 Process mapping of setup operation of M8326 at Test 49 Figure 38 Process mapping of setup operation of M8326 at Inspection 49 Figure 39 Identify stratification criteria: Criteria Type of Setup 50 Figure 40 Identify stratification criteria: Criteria Setup at Stage 50 Figure 41 Collection data form (used at Final Inspection stage) 51 Figure 42 Diagnostic Report (One-Way ANOVA for Types of Setup) 52 Figure 43 Summary Report (One-Way ANOVA for Types of Setup) 52 Figure 44 Diagnostic Report (One-Way ANOVA for Setup at Stage) 53 Figure 45 Summary Report (One-Way ANOVA for Setup at Stage) 53 Figure 46 Setup time per unit of M8326 by Stage 53 Figure 47 Process of capability of Setup at Stage of M8326 54 Figure 48 New specification control for Setup at stage 55 Figure 49 Complexity for each priority issue 55 Figure 50 Tree diagram to achieve target 56 Figure 51 Potential causes for long setup time at Assembly stage of M8326 .61 Figure 52 Potential causes for long setup time at Inspection stage of M8326 61 Figure 53 Potential causes for long setup time at Preparation stage of M8326 61 Figure 54 Prioritization Matrix of potential causes for setup time of M8326 .63 Figure 55 5Whys for root causes of preparing cleaning tools 63 Figure 56 5Whys for root causes of calibration 64 Figure 57 5Whys for root causes of unpacking wraps of materials 64 Figure 58 5Whys for root causes of carrying materials from pass box to production position 65 Nguyen Thi Kim Phung - 16124056 v Supervisor: Nguyen Thi Mai Tram Control Plan (OCAP) The leader uses control chart and OCAP to follow the setup time of M8326 and recognise outliers data point If the process has the oulier after improvement, the team leader have to take note as follow form Check sheet for outliers of setup time Date Shif 5-Jul W 199x Figure 71 Check sheet for ouliers of setup M8326 after improvement (Source: Synthesize by author) With this form, the leader has action on the right time Besides, the leader also train for team members, line lead, operators in Medical line have understand about control chart to have right action with data out of control Nguyen Thi Kim Phung – 16124056 Supervisor: Nguyen Thi Mai Tram CONCLUSION CONCLUSION The project Applying DMAIC method to reduce setup time of M8326 product in Medical line at II-VI Vietnam CO.,ltd, the author and the project team has achived the goals: Objective 1: Applying DMAIC method to reduce setup time for M8326 product in Medical line at System factory in II-VI Vietnam The author learned knowledge and tools in DMAIC methodology The project team together has been conducting project, at the present, the project is in collecting data for Improve phase Objective 2: Collecting set-up time data and change-over time for Medical product still has been conducting in project time The author achieved 100% target collecting time data for Medical line Objective 3: The team recoginsed the setup time of M8326 accounts for 78% total Medical setup time in next months (June – December, 2020) Therefore, M8326 was choosen to improve setup time Objective 4: Based on Pareto chart, the project team defined Process criteria has significant diffenrence and measured three stages (Assembly, Inspection and Preparation stage) Objective 5: Analyzing causes for long setup time and defining root causes At analyzing phase, the team used Brainstorming, Affinity Diagram, Whys to prioritise root causes which has impacts on problem The defined root causes are: downtime to cut wipe paper, to unpack wraps of materials, to carry heatsink through pass box; head of screwdriver at Inspection Stage is old; event codes are not fixed place Objective 6: Give suggestions for cutting down setup time for M8326 The idea improvement to cut down setup time of M8326 are to prevent root causes best by solusions: research new ways to transport heatsink to production position; unpack Nguyen Thi Kim Phung – 16124056 Supervisor: Nguyen Thi Mai Tram wraps of materials at kitting area; line lead provides small pieces of wipe daily; Using new head of screwdriver; gernerate bar code of card at visual spot LIMITATION OF PROJECT Due to limited time for report, the data for improvement is three points It is not enough to affirm the result after improvement achieving initial target, however, the current situation also indicates the positive aspects for becoming successful project The direction for continously improvement: Applying appropriate solutions for other product in Medical line and Other line to reduce downtime Nguyen Thi Kim Phung – 16124056 Supervisor: Nguyen Thi Mai Tram REFERENCES (n.d.) Retrieved from goleansixsigma.com: https://goleansixsigma.com/pareto-chart/ (n.d.) Introduction of System of II-VI Vietnam (n.d.) Introduction of System of II-VI Vietnam Albert, M (2004) Setup Reduction: At The Heart Of Lean Manufacturing Retrieved from www.mmsonline.com: http://www.mmsonline.com/articles/setupreduction-atthe-heart-of-lean-manufacturing Dr.BUI NGUYEN HUNG (n.d.) Một số công cụ Lean manufacturing - Chuyển đổi nhanh (QCO) SIM, HCMUT Drickhamer, D (2004, December 21) Continuous Improvement - Lean Laggards Retrieved from IndustrialWeek: https://www.industryweek.com/companiesamp-executives/continuous-improvement-lean-laggards Human Resoure of II-VI Vietnam, D (2019) History of II-VI Incorporated II-VI Vietnam Được truy lục từ ii-vi.com Incoporated, H D.- V (n.d.) HR Division II-VI Incoporated Network of IIVI Incoporated worldwide (n.d.) 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Setup time report of M8236 in System, II-VI Vietnam Co.,ltd Nguyen Thi Kim Phung – 16124056 Supervisor: Nguyen Thi Mai Tram Shingo, S (1985) A Revolution in Manufacturing - The SMED System Norman Bodek Siderova, S (2018) getnave.com Retrieved from Frequency Distribution: Histogram Diagram: https://getnave.com/blog/histogram-diagram/ six-sigma-process-map (2019, July 23) Retrieved from www.purdue.edu: https://www.purdue.edu/leansixsigmaonline/blog/six-sigma-process-map/ Southworth, T (2019, 12 15) Reducing setup time Retrieved from www.thefreelibrary.com: http://www.thefreelibrary.com/Reducing+setup+timea0172339381 Subramaniam, A (2012, May 16, ) Set up reduction Retrieved from www.slideshare.net: https://www.slideshare.net/anandsubramaniam/set-upreduction Tạ Thị Triều An, Ngô Thị Ánh, Nguyễn Thị Ngọc Diệp, Nguyễn Văn Hóa, Nguyễn Hồng Kiệt, Đinh Phượng Vương (2010) Giáo trình Quản trị chất lượng Hồ Chí Minh: NXB Thống kê Use ICE to Set Business Priorities (2012, 18) Retrieved from https://www.mmsonline.com/: https://www.mmsonline.com/columns/use-iceto-set-business-priorities Vietnam, I.-V (2017) YB - DMAIC Nguyen Thi Kim Phung – 16124056 Supervisor: Nguyen Thi Mai Tram APPENDIX Appendix I-MR Chart of setup time of M8326 for Overall process Individual Value Range 4.8 3.6 Moving 2.4 1.2 0.0 Appendix Process Capability Report for setup time of M8326 for Overall process Nguyen Thi Kim Phung – 16124056 Supervisor: Nguyen Thi Mai Tram Appendix I-MR Chart of setup time of M8326 at Preparation Stage Individual Value 1.5 1.0 0.5 0.0 Moving Range 0.8 0.6 0.4 0.2 0.0 Appendix Process Capability Report for setup time of M8326 at Preparation stage Nguyen Thi Kim Phung – 16124056 Supervisor: Nguyen Thi Mai Tram Appendix I-MR Chart of setup time of M8326 at Assembly stage Value Individual 1 Range 2.4 1.8 Moving 1.2 0.6 0.0 Appendix Process Capability Report for setup time of M8326 at Assembly stage Nguyen Thi Kim Phung – 16124056 Supervisor: Nguyen Thi Mai Tram Appendix I-MR Chart of setup time of M8326 at Inspection stage Individual Value 2.5 2.0 1.5 1.0 Moving Range 0.8 0.6 0.4 0.2 0.0 Appendix Process Capability Report for setup time of M8326 at Inspection stage Nguyen Thi Kim Phung – 16124056 ... time for M8326 product in Medical line at System factory in II- VI Vietnam Collecting data of set-up time and change-over time for products on Medical line was being built at System of II- VI Vietnam. .. procedure in private program of II- VI; DMAIC private training documents of II- VI Vietnam, statistics tools in DMAIC, Data collection method: Creating form: Interview engineers, operators in System... DMAIC application in setup time improvements for Medical line at System factory in II- VI Vietnam Co. ,ltd? ?? Research Aims The project has main goals as follow: Applying DMAIC method to reduce setup