Türkçe
EnglishUltrasonic Surface Hardening Depth Measurement | KOBELCO SH-67
The KOBELCO SH-67 is an advanced solution that makes this physical principle applicable in real industrial environments.
Working principle:
- An ultrasonic wave is transmitted from the surface
- Low scattering occurs in the hardened layer
- Scattering increases when the wave reaches the core material
- This transition is clearly visible in the signal
The hardened layer transmits ultrasonic waves more uniformly, resulting in low backscatter
The core structure produces strong backscatter
The core structure produces strong backscatter
This transition point directly indicates the Surface Hardening Depth (SHD).
How is SHD (Surface Hardening Depth) Calculated?
How is Hardness Depth Measured?
- An ultrasonic pulse is sent into the material
- The return time of the signal is measured (Time of Flight)
- The depth is calculated using the known sound velocity of the material
This method allows measurement without cutting or sample preparation
Ultrasonic SHD measurement depends on:
- High frequency (typically around 20 MHz)
- Microstructural differences
- Acoustic impedance variations
Key Advantages of the KOBELCO SH-67
The KOBELCO approach focuses not only on the method but also on ease of use and field efficiency:
Non-Destructive Testing
- No cutting, etching, or microscopic analysis required
- Measurement can be performed directly on the component
High Accuracy
- 0.1 mm resolution
- ±0.1 mm repeatability
Wide Range of Applications
- Crankshafts
- Gears
- Shafts
- Bearings
- Heavy machinery components
User-Friendly Operation
- No advanced expertise required
- Application-specific probes and setup support available
Efficiency & Cost Advantage
- Eliminates sample preparation
- Enables fast in-line inspection
Significantly reduces labor and time costs
Ultrasonic vs. Destructive Methods
| Method | Feature |
|---|---|
| Microhardness | Destructive |
| Metallography | Cross-section analysis |
| Ultrasonic UBT | Non-destructive, fast |
Conclusion: Why KOBELCO?
Ultrasonic Backscatter technology is becoming the standard for surface hardening depth measurement.
Systems developed by KOBELCO Inspection & Service transform this technology into a solution that is:
- More practical
- Faster
- More reliable
and easily integrated into production processes.
If you are looking for fast, reliable, and non-destructive SHD measurement in your production line, now is the perfect time to explore KOBELCO solutions.
Explore More
You can review the hardness depth measurement device via the link below:
You can explore our ultrasonic devices here:
You can access our Phased Array systems below:
