V.S. Heat Treatment is a hardening and metal annealing plant in Khon Kaen. Their main customers are tier-1 automotive suppliers who demand batch-level traceability and consistent treatment outcomes.
Pain points before the project
- Surface defects (post-anneal microcracks) that human QC couldn't catch consistently
- Furnace temperature tracked manually — historical data sometimes unavailable when customers asked
- Root-cause analysis of customer complaints took 2–3 days
What we installed
- Vision camera + AI model checking surface defects post-anneal
- Temperature sensor + PLC logging every batch into a database
- Real-time dashboard + PDF report exports for customers
Results in 90 days
- Defects reaching customers dropped from 1.8% to 0.7%
- Root-cause investigation time: 2 days → 15 minutes
- Two additional tier-1 customers signed on, attracted by the traceability