精益生产课程

15-3
Waste in Operations
Copyright 2006 John Wiley & Sons, Inc.
15-4
精益生产培训课程(ppt45页)
Waste in Operations (cont.)
Copyrigຫໍສະໝຸດ Baidut 2006 John Wiley & Sons, Inc.
精益生产培训课程(ppt45页)
Lecture Outline
Basic Elements of Lean Production Benefits of Lean Production Implementing Lean Production Lean Services
Copyright 2006 John Wiley & Sons, Inc.
Forces cooperation Prevent over and underproduction While push systems rely on a predetermined
schedule, pull systems rely on customer requests
Copyright 2006 John Wiley & Sons, Inc.
Chapter 15
Lean Production
Operations Management - 5th Edition
Roberta Russell & Bernard W. Taylor, III
Copyright 2006 John Wiley & Sons, Inc.
Beni Asllani University of Tennessee at Chattanooga
精益生产培训课程(ppt45页)
15-12
精益生产培训课程(ppt45页)
Pull System
Material is pulled through the system when needed
Reversal of traditional push system where material is pushed according to a schedule
maintenance 9. Supplier networks
Copyright 2006 John Wiley & Sons, Inc.
精益生产培训课程(ppt45页)
15-7
精益生产培训课程(ppt45页)
Flexible Resources
Multifunctional workers
perform more than one job general-purpose machines perform
Cycle time is adjusted to match takt time by changing worker paths
Copyright 2006 John Wiley & Sons, Inc.
精益生产培训课程(ppt45页)
15-10
精益生产培训课程(ppt45页)
Cells with Worker Routes
精益生产培训课程(ppt45页)
15-9
精益生产培训课程(ppt45页)
Cellular Layouts
Manufacturing cells
comprised of dissimilar machines brought together to manufacture a family of parts
Copyright 2006 John Wiley & Sons, Inc.
精益生产培训课程(ppt45页)
15-8
精益生产培训课程(ppt45页)
Standard Operating Routine for a Worker
Copyright 2006 John Wiley & Sons, Inc.
Copyright 2006 John Wiley & Sons, Inc.
精益生产培训课程(ppt45页)
15-11
精益生产培训课程(ppt45页)
Worker Routes Lengthen as Volume Decreases
Copyright 2006 John Wiley & Sons, Inc.
several basic functions
Cycle time
time required for the worker to complete one pass through the operations assigned
Takt time
paces production to customer demand
15-5
精益生产培训课程(ppt45页)
Waste in Operations (cont.)
Copyright 2006 John Wiley & Sons, Inc.
精益生产培训课程(ppt45页)
15-6
精益生产培训课程(ppt45页)
Basic Elements
1. Flexible resources 2. Cellular layouts 3. Pull production system 4. Kanban production control 5. Small lot production 6. Quick setups 7. Uniform production levels 8. Total productive
“JIT” and “Lean Production” are used interchangeably
Muda
waste, anything other than that which adds value to the product or service
Copyright 2006 John Wiley & Sons, Inc.
15-2
Lean Production
Doing more with less inventory, fewer workers, less space
Just-in-time (JIT)
smoothing the flow of material to arrive just as it is needed