Quality control
When defects start rising, AI finds the cause
Process quality
CNC 2 housing cover machining
Bore diameter defect rate
Last 7 days
4M changes
- WaitingRuled outCauseChange ordered
People
No difference between day and night shifts
- WaitingRuled outCauseChange ordered
Material
Same defect rate across both material lots
- WaitingRuled outCauseChange ordered
Method
No change in cutting conditions or program
- WaitingRuled outCauseChange ordered
Machine and tooling
T05 boring bar at 1,820 parts, limit 1,500
AIAI defect cause analysis
AnalyzingDone- Defect trendBore oversize, over the limit two days running
- 4M change checkWork history and measurements
- Action planQuarantine scope and tool change
The T05 boring bar is past its replacement limit
It has run 1,820 parts against a 1,500 limit, and the overrun lines up with the rise in defects. Quarantine and re-inspect the 320 parts machined past the limit, then change the tool and check the first part.It has run 1,820 parts against a 1,500 limit, and the overrun lines up with the rise in defects. Quarantine and re-inspect the 320 parts machined past the limit, then change the tool and check the first part.
320 parts quarantined, T05 tool change ordered
Defects spottedWhen in-process defects cross the control limit, the AI notices at once.
4M checkIt checks the 4M one by one against work history and measurements to narrow down the cause.
Cause and fixIt names the cause with its evidence, and sets out what to quarantine and what to fix.
Quarantine and replaceOnce the lead approves, quarantine of the suspect parts and the tool change are ordered at once.
