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Why do parts that passed inspection come back?
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THE QUESTION

Why do parts that passed inspection come back?

Spend your stickers on what matters most. An idea with evidence can take a held seat.

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why
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Packaging damages parts that were fine when they left the machine
cluster 2
also discussed during · Generate (1) · Cluster (1) · Map (1)
Do we have the numbers on that?
CLUSTER 1
Setup sheets are in the setter's head, not on paper
5 votesdiscuss
The one person who can read the CMM output left last year
I mean this is how it goes most weeks.
3 votesdiscuss
CLUSTER 2
Packaging damages parts that were fine when they left the machine
Maintenance is done when a machine stops
4 votesdiscuss
CLUSTER 3
Coolant is changed when it smells, not on a schedule
10 votesdiscuss
Tool wear is judged by ear
Meaning the repeat returns, not the one bad batch in spring.
9 votesdiscuss
CLUSTER 4
Our gauges are calibrated once a year, theirs every month
Meaning the repeat returns, not the one bad batch in spring.
1 votesdiscuss
Nobody has asked the customer what they measure
3 votesdiscuss
CLUSTER 5
Rework is not counted anywhere
Scope: our shop, not the customer's line.
6 votesdiscuss
Scrap is thrown in the skip before anyone measures it
1 votesdiscuss
NOT CLUSTERED
Quotes are won on price, so cycle times are cut to the bone
I mean this is how it goes most weeks.
Operators are paid on parts per hour
3 votesdiscuss
Temperature in the shop swings fifteen degrees between morning and afternoon
1 votesdiscuss
Batch traceability ends at the door
9 votesdiscuss
The same operator runs the same machine for years and nobody checks the settings
9 votesdiscuss
Night shift has no inspector
0 votesdiscuss
Sales promises tolerances the machines cannot hold reliably
1 votesdiscuss
A returned part is remade, not investigated
Meaning the repeat returns, not the one bad batch in spring.
0 votesdiscuss
The drawing on the floor is not the revision the customer ordered
14 votesdiscuss
The oldest machine makes the tightest-tolerance part
8 votesdiscuss
Customers changed their inspection method and never told us
8 votesdiscuss
Material certificates are filed but never read
0 votesdiscuss
The customer's returns log and ours do not match
Meaning the repeat returns, not the one bad batch in spring.
6 votesdiscuss
Deburring is done by whoever is free
3 votes
↳ nominated for a seat: https://example.org/ops-incident-review.pdf could not read it (HTTPError) 1 of 2 behind it
discuss
New jobs are quoted from the last similar job, not from the drawing
I mean this is how it goes most weeks.
4 votesdiscuss
Parts that pass our inspection fail the customer's
14 votesdiscuss
First-off inspection is skipped when the job is late
Meaning the repeat returns, not the one bad batch in spring.
6 votesdiscuss