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RELAX Reduce Lead time at company X ISE 250 Course Project Sponsor: Executive Director, Diesel Fuel Injection pumps Dept Owner: Assistant Manager, Plunger Dept Coach: Dr. Baruch I. Saeed Team Members:Nazia Farooqi, Karpaga Sundari Revathy, Neelima Maganti, Sweta V Chegu
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Background Company X produces various automobile parts : Fuel Injection Pumps Spark Plugs Auto Electricals Fuel Injection pump -- 81% of the market share Plunger is an important part of the fuel injection pump Plunger & Barrel - Element Different types of Plungers: Type A, B, K & Q Type A plungers – 85% of total production. Project concentration – Type A Plungers
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DEFINE
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Problem Statement Plunger Dept. unable to meet the demand of Element assembly Goal Study various factors affecting lead time & hence eliminate wastes in production Business Case Bottleneck in the production of Fuel Injection Pump Lost sales Charter
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Scope Beginning of Hard stage production till the product is delivered to the Element assembly Identification of bottlenecks and the wait times between processes Data including lead times, cycle times and inventory needs to be collected Deliverables Target Date – May 16, 2006 Customer – Element Assembly Service – Reduced Lead time Product – Plunger What defines Success Meeting Demand placed by element assembly in time Reduced Lead Time
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Is & Is-Not Analysis
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Involvement Matrix
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Involvement Matrix (Cont’d)
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CAP Chart
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CAP CHART (CONTD.....
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Gantt Chart of Project schedule
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Steps in Plunger Production Plunger Production Soft Stage Heat Treatment Stage Hard Stage
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Process Steps for Hard Stage Pre-Dia Grinding Top Surface Grinding Final Dia grinding Throttle groove grinding Throttle groove grinding Vane grinding Stop Groove grinding Brushing Alkedox cleaning Inspection Repair
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Process Flow Diagram
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CTQ Tree
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Kano Model Plunger Department Must be needsMore is betterDelighters Deliver products at the right time (adhere to schedule) Deliver products at the right place (identify bins) Conforms to specifications No further repair or rework No back flow of products Knowledgeable employees (answer questions) Short waits for service Rapid removal of defects
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MEASURE
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Balance Score Card GoalsMeasures Responsive SupplyNo. of late deliveries of Plungers to element assembly Good Service and performance % of defects at element assembly GoalsMeasures Production excellence Cycle time, Yield Increased productivity Workers/engineers utilization Meeting Production schedules Actual vs planned GoalsMeasures Increase ProductionNumber of plungers produced per day More training to workers about product and operations No. of trainings taken per month Customer Perspective Internal Business perspective Innovation & Learning GoalsMeasures Increase production Quaterly sales Cost reductionExpense calculation for the hard stage Reduce Rework# of parts rejected at inspection Financial Perspective
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Data collection summary Parameter In SecondsIn Days Manufacturing lead time /plunger513395.88.913122 Cycle time/plunger 46980.80.815639 Work-In-Process (units) 101,219101219 Bottleneck 4664158.097483 Utilization 10.07%
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PARETO CHART(CONT)
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ANALYZE
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Cause and Effect Diagram
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Cause and Effect ( contd..)
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IMPROVE
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FMEA Chart Project: RELAX Team: Karpaga, Nazia, Neelima, Sweta Date:3/7/2006 (original)
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FMEA Chart (Cont’d) Stop Groove
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FMEA Chart (Cont’d)
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Affinity Diagram
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Affinity Diagram (cont’d)
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CONTROL
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Prioritization Matrix
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Prioritization Matrix (Cont’d)
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Plan –Do-????
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Implementation Gantt Chart
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Program and Project Success factors
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Line balancing Operatio n Machine# of M/cs Output /machine # of operators Pre-dia Grinding HMT29001 Top Surface grinding Supfina130001 Final dia grinding HMT29001 Throttle groove Studer G9 2121 650 350 3
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OperationDescr iption # of M/cs Output/m achine # of operators Vane grinding CNC SPM 115001 Stop groove grinding SPM115001 BrushingBench11 CleaningBench11 InspectionBench11 RepairBench11 Line Balancing (Cont’d)
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Summary OperationMachineLine 1Line 2Line 3Line 4 Pre-dia Grinding HMT2 1800 2 1800 2 1300 2 1625 Top Surface grinding Supfina1 3000 1 3000 Final dia grinding HMT Parishud Fortuna 2 1800 2 1800 1 1350 1 1500 Throttle groove Studer G9 1650 1
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OperationMachineLine 1Line 2Line 3Line 4 Vane grinding CNC SPM1 1500 1 1500 1(other plant) 1500 2 1625 Stop groove grinding SPM Junker Jung 1 1500 1 1500 2 675 623 1500 (other plant) BrushingBench1111 CleaningBench1111 InspectionBench1111 RepairBench1111 Summary (Cont’d)
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Summary LineOutput per shift Output per day No. of shifts 1150037503 2150037503 3130032503 4150037502 Total output per day = 14500
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Conclusion A thorough investigation of the problem indicates that some of the important factors that contribute to a high lead time are: Imbalanced Line Improper binning & storage Bad maintenance programs High set up times Workers – being casual labor/regular labor Our recommendations include: Balance the line identify four separate lines Employ kanban systems Schedule maintenance programs Reduce setup times by planning the production schedule Increase the number of regular employees Use control charts to ensure the manufacturing process is in control
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Appendix
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PARETO CHART
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Time Study chart
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Calculation Of Lead time:
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Benchmarking & Inventory Turns Benchmarking is the process of determining who is the best? How good are they? And how do we get that good? Since Plunger is not a FINAL product, we cannot do benchmarking. We cannot get data for intermediate stages of production costs. However, we can benchmark the Final product (Fuel injection pump). This is beyond the scope of the project. We do not have access to data from other departments. Inventory Turns: Similarly, we cannot calculate inventory turns since, Plunger is not the final product. We cannot calculate the cost of goods sold for Plunger. The selling price of Fuel injection pump may be obtained, but is beyond the scope of our project. We do not have access to this data.
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House of Quality The team tried to implement House of Quality, but the tool was not really applicable to the project. Responsiveness : Final dia Grinding Surface finish Throttle groove angle Stop groove angle Vane grinding On-time delivery -2 Right place????? Quality:????? Less defectives????? Precision+2 Conforms to specification ????? Customer Support: ????? Rapid removal of defects ????? Conforms to specification +2
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