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Applying Lean Manufacturing Philosophies and Visual Factory Philosophies in the Pneumatic Valves Assembly Cell at Hamilton Sundstrand. A Senior Project by: Joseph G. Nocon & Andrew G. Corlett Faculty Adviser: Company Sponsor: Dr. Eric Haffner Hamilton Sundstrand
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Applying Lean Manufacturing Philosophies and Visual Factory Philosophies in the Pneumatic Valves Assembly Cell at Hamilton Sundstrand A Senior Project by: Joseph G. Nocon & Andrew G. Corlett Faculty Adviser: Company Sponsor: Dr. Eric Haffner Hamilton Sundstrand Friday, April 25, 2003
Introduction • Pneumatic Valves Assembly Cell • 32 Different types • 3 Different assembly lines • Two bench build line • One flow lines • Internal Kanbans • Finished-good Kanbans
Objectives • Balance assembly cell • Cycle times < Takt times • Improve visual flow • Reduce WIP • Reduce cycle times • Reduce batch sizes
Methodology • Analytical Method • Balancing the line • Visual Method • Improve visual flow • Computer Simulation • Reduce cycle times • Improving product mix
Analytical Method • Data Collection • Time Trials • Process Sheets • Combine processes • Part Families • Sub-Assemblies • Batch Size
Visual Method • Flow Diagrams • Standard Work Combination Sheets (SWCS)
Computer Simulation • Collect and Analyze data • Use of Taylor Ed. • Create initial model • Arrival list • 4Dscript • Excel
Computer Simulation cont. • Validation & Verification • Actual system vs. Simulated system • Develop improved model • 2 workers vs. 1 worker • Modify Arrival list • Perform ‘what if’ analysis
Results • Analytical • Part #’s 816601-1 & 816606-1 • Reduced cycle times • Reduce WIP • Single-piece flow (batch size from 4-1) • Part #’s 810229-5 & 810601-3 • Reduced batch size from 4-3 • Reduced cycle time
Results cont. • Visual • Flow Diagrams & SWCS • Computer Simulation • ‘What if’ analysis results • Cycle times reduced by 9-90% • WIP reduction • Increase throughput
Conclusions • Visual • Visual indicator make it easier for a non-cell member to get easily acclimated with the flow of the line. • Analytical • Reduction of batch sizes and single-piece flow assist in eliminating waste. • Computer Simulation • With the use of two workers, the product mix can be more flexible and lead-times can be reduced.
ABET Topics • Manufacturability • Sustainability • Environmental Concerns and Implications • Health and Safety Concerns and Implications • Social Concerns