Quality Inspection for Metal Stamping
Ensure Zero Defects with Resonant Inspection
Problem
An automotive parts supplier of air bag propellant diffusers was experiencing cracks during the drawing process. Customer complaints eventually caused manufacturing to require costly and time-consuming 100% visual inspection.

Solution
To keep up with the very high throughput rate of stamping operations, the extremely fast NDT-RAM resonant inspection technique was implemented, detecting frequency shifts by "ringing" flawed parts. The system objectively determines whole part integrity automatically at approximately 1 to 3 seconds per part, typical* using an industrial conveyor and a synchronized electric impactor to ring the parts. The quality analysis and control system detects frequency shifts with a measurement microphone.

Benefit
100% objective, whole part quality inspection was achieved and kept pace with the stamping operation. The subjective errors and costs of visual inspection were eliminated AND customer confidence and satisfaction increased. The inspection system paid for itself in less than 14 months.

Resonance Systems
RAMβAUTO Automated Resonance Inspection System β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β
The Modal ShopThe RAMβAUTO is a 100% inβline fully automated turnkey resonant inspection system with an automated conveyor and industrial grade computer that's c...
View full detailsRAM-DROP Automated Resonance Inspection System β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β
The Modal ShopThe RAM-DROPΒ is a 100% automated fast turnkey Resonance NDT inspection system for small parts with automatic sorting of defective parts. The system...
View full detailsRAM-TEST-FIXTURE Resonance Workstation β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β
The Modal ShopTheΒ ο»ΏRAM-TEST-FIXTUREο»Ώ isΒ a resonant inspection workstation with an adjustable platform for easy testing of various part sizes and shapes. This sys...
View full detailsRAM-TEST-MANUAL Portable Resonance System β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β
The Modal ShopTheΒ ο»ΏRAM-TEST-MANUALΒ ο»Ώis a portable manual system thatβs ideal for spot checks and troubleshooting in the field and new part set-up. This system is...
View full detailsRAM-TEST-SEMI Resonance System β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β
The Modal ShopTheΒ ο»ΏRAM-TEST-SEMIο»ΏΒ is a resonant inspection system thatβs ideal for integration into an existing manufacturing process. The system includes all of...
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