Study Based On Analysis Of Process Capability For The C201Automobile Brake Processing Quality Control

Carrier is one of the parts of automobile disc brake. Becuse of its framework is thin,clamping fixture clamping and cutting tools force are easy to cause the deformation in itsmachining process that caused by processing size is not qualified. Poor quality size ofcarrier mounting surface thickness will cause the brake block and the brake disc brakeassembly clearance incorrect that lead to appear brake drag ground phenomenon. It’sserious adverse impact for our clients.As the research object with the thickness of the carrier mounting surface size ofprocess capability, based on the process capability analysis, using the mathematicalstatistics principle, with the aid of minitab software, based on the experiment to determinethe reliability of measurement system, to find the main factors influencing are the thicknessof the carrier mounting surface size for the carrier flatness and circle process in reliabilityof fixture locating. And analysis correlation of the both and the size of mounting surfacethickness. For the workblank and surface processing pin hole and installation hole fixturethe effects on the carrier, according to the experience of their improvement, and then verifythe improvement effect, found that improving the rough location and pin hole mountingholes for manufacturing was enough to install the stent surface thickness within the scopeof the process to improve the capacity of ideal size. That proved by improvement ofprocess capability analysis method is effective.Process capability analysis and mathematical analysis is used to determine the mainfactors influencing the product quality, aim at implementation of improvement measures.This way has the scientific, efficient, low-cost advantages, very adapt to the requirement ofmodern mass production. At the same time, this method can also be of some similarproblems have the effect of a experience summary and prevention.