Mahle Components implements online SPC to boost piston ring quality

摘要

IN a move to further enhance its product quality, Mahle Componentes de Motores, based in Brazil, is increasing the use of statistical tools, in particular ASI DataMyte Stats software, to develop and manage production processes in its piston ring manufacturing operation. Since 2004 AAahle has been seeking a six sigma excellence level for every product characteristic considered as critical or special. In order to achieve this objective, Mahle is using online statistical process control as the fundamental tool. The company applied the basic steps of six sigma strategy in the implementation and management of this project. Firstly, based on the concept of minimisation of cost evaluation and maximisation of cost prevention, the Statistical Quality Department defined elimination of sampling inspection in the final control of the process as an important issue,