Check, Do, Verify
Check - The previous operators work. Do - Your work. Verify - That you did your work correctly.
Process
Building Quality into the Process 2 ways to perform SPF
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2020/11/30
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Batch
Building Quality into the Process Single Piece Flow
Single Piece Flow
From: The Toyota Production System
Sample Inspect catches Defect too Late • When you Finally Find a Defect
Ref Material Presentation training for explanation on Supermarket definition and use
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Pull Production Methodology & Sequence
Legend
8 Parts
7 6
5
10 9
process of any problem. - an obligation to stop the process until any
problem has been resolved.
Single piece or one piece flow is a means to primarily build Quality into the process. This is achieved by establishing a takt Time, developing std work, and swip. The premise is that an Operator can only work on one piece at a time, and performs a Quick quality check on the CTQs of the process before moving The part to the following process. If a defect is detected, Jidoka Is enacted…the line is stopped, and immediate action is taken To remediate the situation and take countermeasures to prevent reoccurence
1. Takt time 2. Std work
Flow: work (process) that is done in conjunction with or simultaneous to transportation
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One Piece Flow
• The production is organized into a synchronous chain where each person has a balanced amount of work relative to his/her supplier and customer in the chain.
flaw in 100 parts. The next person checks your work and can catch 1/100 so that’s 1/10,000. Then that person Verifies their work and can catch 1/100. That’s 1/1,000,000 errors that can get through.
# Lots of
Total Manual & Travel Time
Standard Work-in-Process
Operator
Man/Travel Time
27 - avg lot = 6
Turns
Takt/Rate Time
100/Day
DPU's
The next process is the customer … never send defects !
Check, Do, Verify
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One Piece Flow
Your customer is the next step in the process. Give to your customer, exactly what they need ( 1 item), exactly when they need it, done perfect every time.
• As one person finishes their element, so do all. Work is then moved down the line synchronously.
• Every person is empowered to stop the production process if a reject is spotted.
Inspect
Process
Inspect
Transport
The next process is the customer … never send defects ! 精益生产工具(1)
Check, Do, Verify
Gets you into Parts Per Million qualityWhen you verify your work, you catch 1
Supplier
Supermarket
Material Information Empty container Full container 1 Sequence / Timing
3
4
Cell or Chaku-Chaku line
2
1
Assembly Line
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JIT Jidoka
Tenants of 1 pcs Flow
• Do Not Make Defects • Do Not Pass Along Defects • Do Not Accept Defect
Quality, Quality, Quality…Defects are the Worst Kind of Waste
Average by total volume
Average by
model
In general, the more fluctuations you in the production flow, the more muda you
end up having. That is because the capacity and capability of a line tends to be set
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Leveled Production
roducts that can be sold
lowering the peaks among the daily production volumes
HEIJUNKA
as much as possible and making the production flow smooth and unflucuating.
Production Line Cell 6
Part Number All Parts
Part Name
All Tubes
Operator
Orbital Weld
Flex
Weld
End Finish
Weld
End Finish
Torch Braze
Mech. Clean
Mech. Clean
Mark
GEMS Global Production System
g ACTION WORKOUT
New / Rev Organization
Tubing
Area
CFM Cell
Page 1 of 1
Supervisor
Fern Bissonnette
Date 2nd Qtr. ‘01
Standard Work Sheet
• You only have one • You know where it occurred • You Can find/Resolve the Root Cause immediately
The next process is the customer … never send defects !
Hydro Test
Outside Cell FPI X-Ray EDM
Weld
End Finish
Scope of Operations
From: Raw material To: Finished Goods
Quality Check
Safety Precaution
Standard Work-in-Process
Check, Do, Verify
Every Customer in a Process has:
- a right to expect perfect material - an obligation to inspect the material before use. - an obligation to inform the previous step in the
Transportation is integrated into the production process via human conveyance e.g., Chaku-Chaku