Solving the Warping Issue on SIBRE SHI202 (520x195x20mm) Brake Pads

An aftermarket customer working with SHI202 (520×195×20mm) faced persistent challenges:

Severe warping (curling): Due to the large surface area, significant internal stress was generated during high-temperature sintering.

Dimensional instability: Post-sintering deformation led to poor fitting within the caliper.

Inconsistent quality: High rejection rates during installation and uneven early wear.

After developing a stress-relieving material formulation and optimizing the sintering process:

Zero warping performance: Internal stresses were successfully neutralized, ensuring the 520 mm pad remained perfectly flat.

Excellent dimensional accuracy: Seamless fit and uniform contact across the entire friction surface.

Reliable mass production: Transitioned from R&D to stable, long-term supply with high yield.

Size should not dictate stability. Sometimes, overcoming material stress is the key to unlocking the reliability of heavy-duty components.