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Fault assessment of disc brake pads

Fault assessment of disc brake pads

Damage due to environmental influences

Damage due to environmental influences

Vitrification of the friction surface

Cause: Inadequate contact pattern, no cleaning braking after temperature load

Damage due to environmental influences

Contamination of the friction surface

Cause: The operating temperature is often not reached; self-cleaning does not take place. Contamination of the friction surface by, e.g., corrosion, dirt, paint, or salt.

Damage due to environmental influences

Deep scoring in the pad surface

Cause: Use of scored brake disc. Ingress of foreign bodies such as dirt, salt or corrosion. Inadequate distribution of friction particles in the friction material.

Damage due to environmental influences

Residues – metal pick-ups in the pad surfaces

Cause: Material transition from the brake disc onto the brake pad due to, e.g., different loading, climate and/or material incompatibility.