Efficient High-Volume Magnetic Particle Inspection
The Bench Method involves performing Magnetic Particle Testing (MT) using stationary “wet bench” equipment—ideal for high-volume inspection of small to medium ferromagnetic parts like castings, forgings, bolts, and fasteners.
These systems provide both circular and longitudinal magnetization via contact heads and encircling coils, ensuring detection of flaws in all orientations. They typically employ the Wet Fluorescent Magnetic Particle Testing (WFMT) process, with recirculating particle baths and UV-A dark inspection booths for maximum sensitivity.
BQCIS uses calibrated bench units for production quality control, following ASTM E1444/E709 and customer specifications. Certified Level II and Level III personnel oversee inspections, guaranteeing precision, repeatability, and data traceability.
Key Bench Method Activities
Key Benefits of the Bench Method
High Throughput
Optimized for rapid inspection of thousands of similar parts, ensuring consistency and productivity in industrial production lines.
Maximum Sensitivity (WFMT)
Achieves the highest flaw detection capability using fluorescent magnetic particles and precision-controlled field strength.
Multi-Directional Detection
Detects flaws of any orientation with combined circular and longitudinal magnetization during each test sequence.
Controlled Testing Environment
UV-A darkroom hood and controlled bath concentration ensure stable conditions for consistent, repeatable inspection results.
Success Story
Bench MT Ensures Quality of Aerospace Fasteners
An aerospace manufacturer required 100% inspection for cracks on thousands of heat-treated high-strength bolts used in flight-critical assemblies.
BQCIS performed Wet Fluorescent MT using calibrated bench units capable of dual magnetization, ensuring full coverage per specification requirements.
Microscopic forging laps and heat-treatment cracks were identified before assembly. The process ensured defect-free parts reached production, enhancing safety and reliability compliance.