International Journal of Mechanical Engineering （国际机械工程杂志》上）.pdfVIP

International Journal of Mechanical Engineering and Technology (IJMET), ISSN 0976 – INTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING 6340(Print), ISSN 0976 – 6359(Online) Volume 4, Issue 5, September - October (2013) © IAEME AND TECHNOLOGY (IJMET) ISSN 0976 – 6340 (Print) IJMET ISSN 0976 – 6359 (Online) Volume 4, Issue 5, September - October (2013), pp. 116-129 © IAEME: /ijmet.asp © I A E M E Journal Impact Factor (2013): 5.7731 (Calculated by GISI) PROCESS CAPABILITY IMPROVEMENT – A CASE STUDY OF AN ENGINE CONNECTING ROD MANUFACTURING PROCESS 1* 2 3 4 G.V.S.S.Sharma , Dr.P.S.Rao , V.Jagadeesh , Amit Vishwakarma 1 Assistant Professor, Dept. of Mechanical Engg., GMR Institute of Technology, Rajam, A.P.,India. 2 Professor, Industrial Engineering Dept., GITAM University,Visakhapatnam, A.P., India. 3 Assistant Professor, Dept. of Mechanical Engg., GMR Institute of Technology, Rajam, A.P.,India. 4 Manager, Manufacturing Engineering, Volvo Eicher Commercial Vehicles Limted, Pithampur,M.P.,India ABSTRACT Statistical quality control forms an excellent Quality Assurance tool for improving the quality of manufacture and ultimately scores on the end-customer satisfaction. SQC uses process monitoring charts for recording the critical to quality (CTQ) characteristic of the component in manufacture. This paper elaborates on bolt-holes center distance, which forms one such CTQ characteristic of the connecting rod manufacturing of internal combustion engine. Here the journey for attainment of the Cp and Cpk values greater than 1.33 is