Supply Chain Mgmt Jit

2,099 views

Published on

1 Comment
1 Like
Statistics
Notes
No Downloads
Views
Total views
2,099
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
81
Comments
1
Likes
1
Embeds 0
No embeds

No notes for slide

Supply Chain Mgmt Jit

  1. 1. Just-In-Time (JIT) <ul><li>JIT : an integrated set of activities designed to </li></ul><ul><li>achieve high-volume production using minimal </li></ul><ul><li>inventories of raw materials, finished goods & </li></ul><ul><li>work in process. </li></ul>
  2. 2. Just-In-Time (JIT) (Cont.) <ul><li>Management philosophy…Nothing produce until needed. </li></ul><ul><li>Encompasses the successful execution of all production activities required from design to delivery of products. </li></ul><ul><li>Common sense based/simple techniques </li></ul>
  3. 3. Just-In-Time (JIT) (Cont.) <ul><li>Minimize waste of time, energy, material & errors </li></ul><ul><li>Minimize waste…in both factories: Manufacturing product & “Hidden” </li></ul><ul><li>Attack/eliminate waste </li></ul><ul><li>Value added to the final product philosophy … from customer ’s point of view </li></ul>
  4. 4. Just-In-Time (JIT) (Cont.) <ul><li>Expose problems </li></ul><ul><li>Continuous improvement/ change </li></ul><ul><li>Enforced problem solving approach </li></ul>
  5. 5. Goals <ul><li>Zero defects …reducing defects </li></ul><ul><li>Zero inventory …Stockless production </li></ul><ul><li>Zero setup time … SMED ---Single Minute Exchange of Dies </li></ul><ul><li>Zero handling </li></ul><ul><li>Zero break down </li></ul>
  6. 6. Goals (Cont.) <ul><li>Zero lead time </li></ul><ul><li>Zero Transactions …reduced paperwork </li></ul><ul><li>Zero disturbances …routine execution of schedules </li></ul>
  7. 7. Elements addressing Elimination of Waste <ul><li>Focused Factory …specialized </li></ul><ul><li>Group Technology …Eliminate movement & queue time between operations </li></ul><ul><li>Jidoka …Quality at the source stop line if necessary </li></ul><ul><ul><li>Total quality: an approach that encompasses all phases of a manufacturing organization. </li></ul></ul>
  8. 8. Elements addressing Elimination of Waste (Cont.) <ul><li>Quality …Meeting a specific set of customer </li></ul><ul><li>expectations </li></ul><ul><li>Fitness for use, reliability, consistency, etc. </li></ul><ul><li>Customer…external & internal </li></ul>
  9. 9. JIT Manufacturing <ul><li>JIT Manufacturing : </li></ul><ul><li>Executing linear production : Production of necessary units in the necessary time with the objective of  0 Variance W.R.T. the schedule. </li></ul>
  10. 10. JIT Manufacturing (Cont.) <ul><ul><li>No Inventories, No queues </li></ul></ul><ul><ul><li>Minimum schedule variation </li></ul></ul><ul><ul><li>Uniform plant loading </li></ul></ul><ul><ul><li>Uninterrupted flow of materials </li></ul></ul><ul><ul><li>Flow paced by market demands </li></ul></ul><ul><ul><li>Flexibility, Visual Control (make problems visible to everyone), Reliability (of materials, people & equipment) </li></ul></ul>
  11. 11. JIT Manufacturing (Cont.) <ul><ul><li>Inventory hides problems such as poor quality, break downs, late deliveries, workers absence & tardiness, etc. </li></ul></ul><ul><li>Tightening the production system : </li></ul><ul><ul><li>Reducing the amount of inventory in the system </li></ul></ul><ul><ul><li>“One less at a time”…(reducing the lot size) </li></ul></ul><ul><ul><ul><li>expose eliminate constraints </li></ul></ul></ul>
  12. 12. Pull System <ul><li>Produce only when material is needed downstream…(cue from the user not the planning source) </li></ul><ul><li>Pull materials sequentially through the factory. </li></ul><ul><li>Orders placed at end item level. </li></ul><ul><li>Idle material is waste. </li></ul><ul><li>Need discipline…(Good practices reinforced through training) </li></ul>
  13. 13. Push System <ul><li>Production authorized in anticipation of needs downstream…(cue is a work order from the planning system) </li></ul><ul><li>Orders launched to meet due dates. </li></ul><ul><li>Keep machines & people busy. </li></ul><ul><li>NOTE : Planning is necessary under JIT to ensure the right amount of productive resources are </li></ul><ul><li> scheduled/available to satisfy MPS/FAS </li></ul>
  14. 14. Kanban Production Control Systems <ul><li>Simple, paperless procedures </li></ul><ul><li>Signals/visual systems </li></ul><ul><ul><li>Posted schedules </li></ul></ul><ul><li>Containers </li></ul><ul><ul><li>Standard size , small </li></ul></ul><ul><ul><ul><li>Factors: Material Handling consideration proximity of work centers </li></ul></ul></ul>
  15. 15. Kanban Production Control Systems (Cont.) <ul><li>Kanban…Cards </li></ul><ul><ul><ul><li>Production Card---”P” Card: </li></ul></ul></ul><ul><ul><ul><ul><li>Part #, Quantity to be produced, Supply work center #, etc. </li></ul></ul></ul></ul><ul><ul><ul><li>Conveyance (Move) Card---”C” Card : </li></ul></ul></ul><ul><ul><ul><ul><li>Part #, Container Capacity, Source, Destination, etc. </li></ul></ul></ul></ul><ul><li>1-card system : Move card and an empty space </li></ul>2-card system
  16. 16. Setup Reduction <ul><li>Setup reduction is the process of reducing the time required to convert from production of the last good piece of unit A to the first good piece of unit B . </li></ul><ul><li>use methods engineering/common sense. </li></ul><ul><li>Ideal lot size = 1. </li></ul>
  17. 17. Setup Reduction (Cont.) <ul><li>Setup activities: </li></ul><ul><ul><li>External: Operations performed while the machine is running. </li></ul></ul><ul><ul><li>Internal: Operations performed after the machine is stopped. </li></ul></ul><ul><li>Setup…responsibility of the operator. </li></ul>

×