Study on Quality Improvement of Machine Tools

Quality management of machine tools is the key to reducing downtime of customers' machines and the manufacturers' service cost. This paper introduces DMG MORI's systematic workflow from designing, procurement, manufacturing, and acceptance inspections to the delivery of machines, which contributes to improvement of machine quality. Two quality management systems, one for before shipment and the other for after shipment, are described in this paper. Various workflow systems, data analysis, remote monitoring, continuous Kaizen approaches are integrated in the systems. However, defects of machines cannot be completely eliminated, so proactive maintenance and strong service networks are vital for business success. Especially, proactive maintenance is favorably accepted in the industry as a solution to minimize machine downtime and the repairing cost. This paper introduces various sensing technologies to improve the functions of proactive maintenance.