OK you metalurgists, I have come across and unusual patter on front disc brake rotors. The metal on the inside of the front rotors is very rusty and falling off in chunks. The outside of the rotors looks normal. The cars will make a faint scraping sound but the brake performance seems normal although the rotor surface looks terrible.One vehicle had 54k miles original nissan rotors and the other was aftermarket premium rotors, lasted 4 years then all of a sudden started to show this same pattern. I have checked the slides and everything is free, pistons are free,calipers bleed multiplt times, both pads show same type of wear but the inners are wore much more. Look at the pictures and see if you can explain what is happening. I have a guess that the rotors may have been multiple layers of different metals and when the surface metal is gone the underlaying is soft and not up to the stress.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
White-hat hackers have demonstrated gaining remote access to dashboard functions and transmissions of connected vehicles. That makes a firewall a vital component of a multilayered approach to vehicle security as well as overall vehicle safety and reliability. Learn strategies to secure with firewalls. Download Now
As complexity rises, current harness manufacturing methods are struggling to keep pace due to manual data exchanges and the inability to capture tribal knowledge. A model-based wire harness manufacturing engineering flow automates data exchange and captures tribal knowledge through design rules to help harness manufacturers improve harness quality and boost efficiency. Download Now
Engineers are being asked to produce more sophisticated designs under a perfect storm of complexity, cost, and change management pressures. Generative design empowers automotive design teams to navigate this storm by employing automation, data re-use and synchronization, and framing design in the context of a full vehicle platform. Download Now
Simulation-driven design can reduce the time and cost of product development. In this engineering.com eBook, weâ€™ll explore how SOLIDWORKS users can access simulation-driven design through the SOLIDWORKS Simulation suite of analysis tools. Download Now