Case Study: Anti-Rotational Sleeve

Process: Conventional Press & Sinter (PM)

Material: FLC-4805 sinter-hardened steel

Density: 6.8 g/cm³

Hardness: 250-400 HV (microindentation)

Download the PDF

End Use and Function

The anti-rotational sleeve is a precision component in electronic braking systems, ensuring stability within the drive-by-wire brake system used in modern automotive vehicles.

Fabrication

Manufactured through compacting FLC-4805 material on a CNC press, the anti-rotational sleeve achieves a minimum density of 6.8 g/cm³. Maintaining integrity during compaction is vital due to the thin cross-section at the flange and legs. Sintering with custom plates minimizes distortion, ensuring tight tolerances. Following sintering, the parts undergo resonant crack inspection and automated hard turning, achieving dimensions within 0.03 mm to guarantee quality and performance in demanding applications.

Results

The anti-rotation sleeve ensures enhanced stability and precision in the drive-by-wire brake system, meeting tight tolerances and hardness requirements essential for reliable performance. This innovation significantly improves vehicle safety over traditional systems, providing superior control during braking and contributing to the effective launching of modern automotive technology.