Optimal model for remanufacturing tolerance design and its application

To reduce cost and assure remanufacturing products quality,tolerance design method was introduced into remanufacturing field.By deep analysis on tolerance design characteristics and tolerance distribution principles of remanufacturing,an optimized mathematical model for remanufacturing tolerance design was proposed.This model was based on statistical tolerance principles,aiming to achieve minimum total cost of remanufacturing.Constraints such as the functionality requirements,the surface engineering process and the process capabilities were taken into consideration.And the quality assurance cost was also included besides Taguchi quality loss cost.Finally,a case of ZQDR-410 motor remanufacturing verified the effectiveness and practicality of the proposed method.