SPØRGSMÅLET
Why do parts that passed inspection come back?
Saml sedler, du synes ligner hinanden. Klynger gør væggen lettere at læse; de afgør intet.
lukket · tilbage til fasen Handlinger
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Klynger dannes ud fra lighed, navnene kommer sidst
Fast rækkefølge: kobl par af idéer, du synes ligner hinanden — koblinger er symmetriske (A~B er B~A; retningen betyder aldrig noget), og en kobling holder, når 2 medlemmer har lavet den.
hvorfor
Koblinger er symmetriske — A~B er B~A. Klynger er de grupper, der opstår af koblinger, der holder, og kun en dannet klynge kan navngives, af et menneske. Dine egne koblinger har et ✕, så du kan trække dem tilbage; du kan ikke fjerne andres. Klynger ordner væggen og spærrer aldrig for afstemningen — to sedler, der fremsætter samme PÅSTAND, skal lægges sammen i fasen Præcisering.
Koblinger og navne laves, mens fasen Sortering er åben; tovholderens ← genåbner den.
Packaging damages parts that were fine when they left the machine
klynge 2
Would the customer agree with this?
unavngiven klynge — navngiv den, hvis sedlerne har en fælles tråd, eller lad den være unavngiven (2)
Maintenance is done when a machine stops
~ Packaging damages par…Packaging damages parts that were fine when they left the machine (14)
unavngiven klynge — navngiv den, hvis sedlerne har en fælles tråd, eller lad den være unavngiven (2)
Coolant is changed when it smells, not on a schedule
~ Tool wear is judged b…Tool wear is judged by ear (12)
Tool wear is judged by ear
~ Coolant is changed wh…Coolant is changed when it smells, not on a schedule (12)
unavngiven klynge — navngiv den, hvis sedlerne har en fælles tråd, eller lad den være unavngiven (2)
The one person who can read the CMM output left last year
~ Setup sheets are in t…Setup sheets are in the setter's head, not on paper (12)
Setup sheets are in the setter's head, not on paper
~ The one person who ca…The one person who can read the CMM output left last year (12)
unavngiven klynge — navngiv den, hvis sedlerne har en fælles tråd, eller lad den være unavngiven (2)
Rework is not counted anywhere
~ Scrap is thrown in th…Scrap is thrown in the skip before anyone measures it (17)
Scrap is thrown in the skip before anyone measures it
~ Rework is not counted…Rework is not counted anywhere (17)
unavngiven klynge — navngiv den, hvis sedlerne har en fælles tråd, eller lad den være unavngiven (2)
Nobody has asked the customer what they measure
~ Our gauges are calibr…Our gauges are calibrated once a year, theirs every month (17)
Our gauges are calibrated once a year, theirs every month
~ Nobody has asked the …Nobody has asked the customer what they measure (17)
· endnu ikke i en klynge (17)
The customer's returns log and ours do not match
Sales promises tolerances the machines cannot hold reliably
Deburring is done by whoever is free
Batch traceability ends at the door
Night shift has no inspector
The same operator runs the same machine for years and nobody checks the settings
New jobs are quoted from the last similar job, not from the drawing
Quotes are won on price, so cycle times are cut to the bone
The drawing on the floor is not the revision the customer ordered
The oldest machine makes the tightest-tolerance part
Material certificates are filed but never read
First-off inspection is skipped when the job is late
Parts that pass our inspection fail the customer's
A returned part is remade, not investigated
Customers changed their inspection method and never told us
Operators are paid on parts per hour
Temperature in the shop swings fifteen degrees between morning and afternoon