Single Minute Exchange of Dies(S.M.ED)
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Transcript of Single Minute Exchange of Dies(S.M.ED)
Single Minute Single Minute Exchange of Exchange of DiesDies
Group no. : 11Name: Anchal SinghRoll no.: 7554
What is SMED?What is SMED?Single Minute Exchange of Dies is
process changeover in 9 minutes or less.
The process was developedby Shigeo Shingo at Mazda,Mitsubishi and Toyota in the 1950’s and 1960’s.
The SMED ProcessThe SMED Process
Preliminary Stage – Observe and record.
Stage 1 – Separate internal and external activities.
Stage 2 – Convert internal activities to external activities. Stage 3 – Streamline all activities.all activities.
Preliminary StagePreliminary StageRecorder
Overall duration (from last product to first good product).
Describe the change (from what to what?).
Timers Time each step
Stage 1Stage 1
Separate internal and external activities. Study each internal step and ask if it
could be external.
Common issues:• Dies in remote storage racks.• Spanners not available.
Stage 2Stage 2
Convert internal to external. Ask why the remaining internal steps
can’t be external. Re-examine the true function of each
step. Common issues:• Cold dies – using material to heat the dies. • No record of settings.
Stage 3Stage 3
Streamline all activities. Analyze the elements (facts), and
discuss all possible ways of improving the step.
Study the external activities as well as the internal activities.
Common issues: • Fastenings – Are bolts needed? If so
remember that only the last turn tightens a nut or bolt.
• Standardize die heights.
Routing Diagram Routing Diagram (before)(before)
Routing Diagram Routing Diagram (after)(after)
Step 0Step 0
Step 1Step 1
Step 2Step 2
Step 3Step 3
Step 4Step 4
Step 5Step 5
Step 6Step 6
Thank Thank youyou