Lean Only Understood Processes Aerospace Initiative Can Be Improved o Establish models andlor simulations to permit understanding o Ensure process capability maturation o Maintain challenge of existing processes Tools o Five Whys o Process flow charts o Value stream mapping o Statistical tools o Data collection and discipline 6-Shields -091802 e 2002 Massachusetts Institute of Technology web. mit. edu/lean
6 - Shields 091802 © 2002 Massachusetts Institute of Technology web.mit.edu/lean Only Understood Processes Only Understood Processes Can Be Improved Can Be Improved ❍ Establish models and/or simulations to permit understanding ❍ Ensure process capability & maturation ❍ Maintain challenge of existing processes Tools ❍ Five Whys ❍ Process flow charts ❍ Value stream mapping ❍ Statistical tools ❍ Data collection and discipline -
Lean Definite Boundaries Exist Aerospace Initiative Between Flow and pu∥ Flow Pull MRP used for planning and o Takt time control o Balanced production o Group technology o Level production o Reduce the number of flow aths o Response time less than lead time o Batch or single items Standard work o Inventory to buffer flow o Single item flow o Process control o Correct problems o Minimize space& distance immediately-sToPⅱf traveled with contiguous necessary processing established 7-Shields-091802e 2002 Massachusetts Institute of Technology web. mit. edu/lean
7 - Shields 091802 © 2002 Massachusetts Institute of Technology web.mit.edu/lean Definite Boundaries Exist Definite Boundaries Exist Between Flow and Pull Between Flow and Pull Flow ❍ MRP used for planning and control ❍ Group technology ❍ Reduce the number of flow paths ❍ Batch or single items ❍ Inventory to buffer flow ❍ Process control ❍ Minimize space & distance traveled with contiguous processing established Pull ❍ Takt time ❍ Balanced production ❍ Level production ❍ Response time less than lead time ❍ Standard work ❍ Single item flow ❍ Correct problems immediately - STOP if necessary -
e0l Lean Tools Can Apply even if Aerospace Initiative JIT System Not Logical o Value stream mapping o Work groups to implement PRODUCTS and VOLUMES. Pv change o Visual displays and controls Functional La fow extremely o Error proofing Batch fow vaned o Standardized work Flc OPL o Quick changeover atos-Psced operam pacc. Line Flow tow mosty o Total productive FMS Line tow Equipment-Paced maintenance quipment paced J Rapid problem solving Continuous RoN o Self inspection Source: J. Miltonburg Manufacturing Strategy @1995, p31 o Five ss 8.Shields-0918020 2002 Massachusetts Institute of Technology web. mit. edu/lean
8 - Shields 091802 © 2002 Massachusetts Institute of Technology web.mit.edu/lean Lean Tools Can Apply even if Lean Tools Can Apply even if JIT System Not Logical JIT System Not Logical ❍ Value stream mapping ❍ Work groups to implement change ❍ Visual displays and controls ❍ Error proofing ❍ Standardized work ❍ Quick changeover ❍ Total productive maintenance ❍ Rapid problem solving ❍ Self inspection ❍ Five S’s Source: J. Miltonburg, Manufacturing Strategy ©1995, p31. -
Lean Aerospace Initiative Part 9-Shields -091802G 2002 Massachusetts Institute of Technology web. mit. edu/lean
9 - Shields 091802 © 2002 Massachusetts Institute of Technology web.mit.edu/lean Part II -