Induction hardening layer depth non-destructive testing instrument/Fraunhofer, Germany

Induction hardening layer depth non-destructive testing instrument/Fraunhofer, Germany

The IZFP Non Destructive Testing Technology Research Institute is based on physics and measurement technology to develop non-destructive testing techniques and methods applicable to the fields of quality and safety, material characterization, defect inspection, process assembly, and component quality monitoring.

Four channel surface hardening depth non-destructive measuring instrument - P3123 SHD for non-destructive testing of induction hardening depth of components

As an alternative to destructive testing techniques such as optical analysis or hardness depth analysis, the Fraunhofer Institute for Non Destructive Testing Technology IZFP in Germany uses a fast non-destructive ultrasonic time-of-flight method to measure the depth of the surface hardening layer (SHD). This non-destructive measurement technique utilizes the backscattered signal generated in the transition zone between the hardened layer and the substrate structure to measure the corresponding depth of the hardened layer. By utilizing the mechanical and structural differences between the microstructure of the surface hardening layer and the matrix material, combined with the optimized ultrasonic frequency for backscattering effect, reliable and reproducible SHD measurement results have been achieved for users.

Induction hardening layer depth non-destructive testing instrument/Fraunhofer, Germany

Based on this effect, the thickness of the surface hardening layer is determined by evaluating the ultrasonic flight time between the surface echo signal and the backscattered echo signal from the transition zone. Due to the clear ultrasonic velocity of the material, the depth of the surface hardening layer can be directly calculated. This excellent non-destructive measurement method for surface hardening layer depth has high demand in the energy industry, large-scale rolling bearing production, as well as truck and automotive crankshaft manufacturing. Our innovative technology has also entered other industries, providing users with a variety of customizable solutions.

The P3123 SHD non-destructive measurement system can fully optimize manufacturing parameters, reduce testing workload, and lower costs. By adjusting production processes in a timely manner, it can achieve rapid manufacturing control functions and good quality management, ensuring that products always have high quality.

solution

The process of changing the properties of elastic materials through hardening

Utilizing the different scattering characteristics of structural types at the transition from the hardened layer to the uncured substrate

Measurement of the propagation time of backscattering amplitude of ultrasound entering the substrate and the correlation between sound velocity and hardness depth

Targeted tuning of ultrasonic frequency to microstructure to achieve excellent backscatter