To monitor production quality, brake pistons were previously cut up at random and visually inspected by employees. During setup of the system, all the pistons were cut up, resulting in high scrap rates and high labor costs.
The system solution NFT for brake pistons determines dynamic parameters (natural frequencies and damping) and evaluates them using frequency bands (pass/fail). Our high frequency ranges (40 kHz) with high frequency resolution allow even the smallest defects to be identified. Cracks in the wall and base, geometric and form defects, and defects after hardening of the phenolic pistons can thus be detected non-destructively.
MAUL-THEET helps manufacturers work more cost-efficiently (less scrap, fewer false positives, time savings through non-destructive testing). By using the NFT for brake pistons, we ensure that only the highest quality brake pistons are delivered.
Advantages & innovation
- Crack detection in the complete component (wall/floor), also in phenolic pistons
- Detection of geometric and form defects, even in phenolic pistons
- Detection of defects after curing/through-curing, even in phenolic pistons
- Cost and time savings through non-destructive testing
- Automated testing system for quality control
- Software guided measurement
- DAkkS calibration (DIN EN ISO/IEC 17025) possible
- Automatic measurement with just one click
- Setting frequency bands for quality control (good/bad statement)
- Calculation of damping or loss factor
- Freely selectable dB values for the attenuation calculation
- Quality factor for damping value
- Vibration measurement with a laser Doppler vibrometer
- Frequency range up to 40kHz
- Frequency resolution < 1Hz to 20kHz
- Automatic measurement report generation
