Development of a Powder Metallurgy Sensor Ring for Use In a Antilock Brake System 890407
The sensor ring for Antilock Brake Systems was developed by the Powder metallurgy(P/M) process. The P/M process provides the following merits;better dimensional tolerance, flexibility of tooth design, versatility of the materials, and better economics.
Residual porosity introduced by the P/M process decreases the output voltage of the sensor. A representative porosity of 10% was confirmed to be allowable.
By developing a new surface treatment suited to P/M parts which contain the residual porosity, we succeeded in developing the P/M sensor ring which can endure a 500 Hr. salt spray test.
Citation: Hanada, M., Amano, N., Takeda, Y., Saegusa, Y. et al., "Development of a Powder Metallurgy Sensor Ring for Use In a Antilock Brake System," SAE Technical Paper 890407, 1989, https://doi.org/10.4271/890407. Download Citation
