Lean Manufacturing Chris Poteet Scott Carroll Manufacturing Operating Principles Framework Core Beliefs & Values Enablers Subsystems OPERATING PRINCIPLES Leadership H. R.
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Lean Manufacturing Chris Poteet Scott Carroll Manufacturing Operating Principles Framework Core Beliefs & Values Enablers Subsystems OPERATING PRINCIPLES Leadership H. R. Systems Teamwork Inspiration Openness Joint Commitment Role Clarity Employee Involvement & Development Human Infrastructure Communication Work Group Organizational Structure Safe Work Practices & Environmental Awareness Training Standardized Methods & Procedures Standardization Customer Focus Agility Proc ess Focu s Visual Techniques / 5S Quick Issue Detection & Correction Quality Focus & Robust Processes & Products Robust Processes / Products & Preventative Quality Assurance MQAS Quality Policy / Management Review Business Plan / Assurance System Performance Feedback Policy Deployment Employee Feedback Employee Opinion Surveys Employee recognition Std Communication Channels Checklists and Monitoring Man Assignments Group Development Activities Training New Hire Orientation Process Descriptions Resources Group / Team Meetings On the Job Training Suggestion System C. I. Implementation Area Shopfloor Training Area Team Leader Roles (as applic.) Integration of Tasks Groups, Boards Qualification Training Matrix Cross--Functional Training Safety Regulations Visual Safety Indicators Ergonomic Evaluation Refuse / Waste Separation Environmental Protection Standard Work Instructions (SWI’s) Process Support Documentation Standard Work in Process (WIP) Scoreboards Shopfloor Measurement Standard Shift Change Procedure Standardized Equipment Quality Gates 5S Labeling, Marking, & Footprinting Quality Feedback Loops Shopfloor Section Audit Root Cause Analysis Quality Alerts / Prod. Info. Boards Boundary samples Responsibility and Authority Use of Cross Functional Teams Employee Safety / Environmental Doc & Data Cont / Prod ID & Trace. Process Control / Inspection & Test Insp & Test Stat / Cont of Quality Records Handling, Storage, Pkging, Preservation Control of Customer-Supplied Product Control of Non-conforming Product Corrective and Preventative Action Statistical Techniques Quality Alert System / Quality Stop Preventative Maintenance Production Part Approval Process Design Control Certification Audit Total Productive Maintenance Process Audit Error Proofing Preventative Maintenance & Calibration Single Point Lesson Mistake Proofing Problem Solving / Closed Circuits Statistical Process Control (SPC) Process FMEA Quality Agreements Customer Quality Measurement Quality / Zero Defect Gate Production Planning Schedule In-Line sequencing Delivery (Prod Sched - 1 Piece Flow) Inventory Mixed Loads / Tugger Transport Order Cards Withdrawal & Fill-up Material Flow Planning Quality Planning Purchasing One Piece Flow Small Lot Containers First-In, First-Out (FIFO) CDR / Cycle time chart Single Stage Stock strategy Plan, Do, Check, Act (PDCA) Cont. Imprv / Corrective & Prev. Action Manufacturing Capabilities Stable Customer Demand Rate 7 Wastes 5 Step Improvement Process 5 Why’s Analysis & Use of Company Data Customer Satisfaction / Assurance Asses. C. I. Workshop Engineering Change Control Customer Focus Production Smoothing Pull Production Just-In-Time Continuous Flow Proc. Customer Demand Rate Innovation Continuous Improvement Waste Elimination Support Processes, Tools, & Measurement Contract Review Practice Sharing Results Quality Speed (to market) Excellence Responsibility afety S Q D C M uality elivery ost orale Profitability Three Pillars of Lean Manufacturing • Human •Technological •Systems How Pillars Affect SQDCM Human Safety Quality Technological Delivery Systems Cost Morale What Do We Mean by a System? These five subsystems are tightly linked… each one affects the others. Human Aspects Consumer Feedback: • After purchase surveys • Surveys to potential buyers Employee Feedback: • Process problems or improvements (lighter robotic arm design) • Integrated into continuous improvement process (Suggestion box, recommendations to supervisors) • Employee online surveys Unions: • Union representatives / liaisons to assist employees with problems • Recognition of employees as the most important asset of the company Human Aspects Training: • Cross training of employees (varied tasks, flexibility of supervisors) • Floaters (use in assisting with critical tasks, flexibility supervisors for breaks) • Company closed circuit television in break area (covers company news, financial updates, new products) • Voluntary participation in continuing education classes = higher morale Technological Aspects Facility Layout: • Open aisles allow managers to monitor processes and employees to detect problems • Reduction of wasted movement (i.e. travel distances) • Workstation design Ergonomics: • Force, frequency and flexion • Ergo-Arms, foot pads, roller racks, tilt racks, hydraulic tables • Use of employees in the design phase of manufacturing Technological Aspects Material Handling: • Reduction of component stocks (1 1/2 hour operations) at stations • Components come in pre-packaged amounts for specific jobs • Component packages stored in marshaling areas • Reduce the lifting done by the employees • Computerized / Wireless acquisition (fork lifts) Mistake Proofing: • Color Coding • Shape Coding • Bar code scanner for all sub-parts (can track all parts by VIN #) • Computerized feedback from tools Technological Aspects Preventative Maintenance: • Scheduled services occur at shift changes • Unscheduled services conduct repairs upon employees request • Testing Measuring Diagnostics Equipment System Aspects Standardization: • Standardize work instruction and directions • 5 S’s (Sift, Sweep, Sort, Sanitize and Sustain) • SPC Charts • Preventative Maintenance • Safety (Paint markings, laser indicators) JIT: • Orders received at the gate trigger each department • Reduction of inventory equates to reduction of storage requirement, increases working capital, decreases bureaucracy • Increases responsiveness to customers • Temporary bank after human intensive stage System Aspects Computerized Monitoring: • Real-time production statistics • Color coded warning system • Defects on products are noted and tracked throughout the process • KUKA camera tracking system • Computerized check of all options (Huntsville check) Continuous Improvement: • Non-Value added activities • Wastes Definition of Value Added Activity (VA) • An activity that transforms or changes raw material or information to meet customer requirements. Value Added Tests: – The customer must recognize the value (be willing to pay for it) – The product must physically change during the process – The activity must be done right the first time Definition of Non-Value Added (NVA) Activity • Any activity that does not transform or change raw material or information to meet customer requirements. Non-Value Added Tests: – Activities that do not meet all of the three VA test rules – Some non-value added work may be necessary Value Added • Machining Non-Value Added • Stamping • Transportation • Assembling • Inventory • Designing • Defective material • Customer Service • Wait Time • Analysis • Inspecting • Painting • Testing • Sealing/Welding • Correcting • Batching • Setup The 7 Wastes 1. Product Defects: 2. Overproduction: 3. Inventory: Defects or repair work 4. Transportation: Double handling or conveyance of materials 5. Processing: 6. Waiting: Unnecessary work or processing 7. Motion: Excess walking, bending, or reaching Producing too much or too soon Excess raw materials or work in process Waiting for parts, materials machines to cycle POLICIES Minimize Fluctuation Downstream fluctuations must be minimized to reduce the “ripple effect” on upstream processes. Implement Short Lead Time Short lead times are the keys to flexibility, cost reduction, and customer satisfaction. Rather than optimizing individual pieces and functions, optimize total throughput. Eliminate waste Strive to eliminate waste, especially overproduction. In other words, do not produce too many, too soon or too fast. Recognize the limitations of plans, forecasts, and schedules Remember that forecasts are necessary evils and plans do change. Therefore forecast as accurately as possible, recognize the limitations of forecasts, and plan accordingly. Be prepared to respond quickly to change. Focus on the actual condition of the “front lines” Identify and solve problems when they happen. Capitalize on the collective knowledge of the team. Utilize team members’ knowledge. Keep it simple and manageable Resiliency and flexibility are facilitated by a synchronized process. How Pillars Affect SQDCM Human Safety Quality Technological Delivery Systems Cost Morale