International Journal of Science and Research (IJSR) ISSN (Online): 2319-7064 Index Copernicus Value (2013): 6.14 | Impact Factor (2015): 6.391 Volume 5 Issue 5, May 2016 www.ijsr.net Licensed Under Creative Commons Attribution CC BY Analysis of Quality Control Connecting Rod with Statistical Process Control (SPC) Method in PT.XYZ Nanang Supriana 1 , Muhammad Ali Akbar 2 , Osep Hijuzaman 3 Industrial Engineering of STT. Wastukancana Purwakarta, West Java, Indonesia Abstract: Quality controlof a product is very important to do that levels approaching zero defect generated. PT.XYZ produce connecting rod with a data defect during January 2015 - March 2015 as much as 7.47% of the total production of 26 070 pcs. The statistical methods used for data processing using methods of Statistical Process Control (SPC) or Control Chart, Process Capability and Fishbone Diagram. The decline in the number of visible defect after the repair to 3.65% of the total production of 27053 pcs and the value of Process Capability (CP) rose from 0.26 to 1.27. Keyword: Quality, Defect, Capability Process , Statistical ProcessControl(SPC) Method 1. Introduction Quality control aimed at improving the quality of the product, should ideally be carried out at each stage of the process development and manufacture of such products. Thus the quality control should have started from the design, receipt of raw materials to the manufacturing process. To produce a good product as desired then quality control has been an absolute requirement. Quality control is important to be done by the company to the products produced in accordance with standards established by the company as well as standards set by local agencies and international managing of quality standardization / quality, and of course in accordance with what is expected by the consumer. PT. XYZ as automotive companies that have international scale can not be liberated and be separated from the already very long journey for the existence of four-wheeled vehicles for this type of bus and truck in Indonesia. With the growing level of competition will require good quality control so that it can compete with products produced by other companies. Currently the products are of high quality is the key factor of success of competition. 2. Literatur Review 2.1 Definition of Quality "Quality is very important for a product, either in the form of goods and services. Things that are very important for manufacturers with regard to the products are: quality, cost and productivity. The quality is the ability of a product or service that consistently meets the expectations of consumers. Thus the quality is the only thing that matters most to both pihak.Dalam many cases, the concept of quality is different between manufacturers / producers and customers / consumers "(Rev. Dorothea, 1999). Definition of Statistical Quality Control "Statistical Process Control (SPC) is a process used to monitor the standards, make measurements and take corrective action while a product or service being produced" (Heizer and Barry Render, 2005.) "Statistical quality control is a problem-solving techniques that are used to monitor, control, analyze, manage, and improve products and processes using statistical methods. Statistical quality control (statistical quality control) is often referred to as statistical process control (statistical process control). Statistical quality control and statistical process control is the two terms are interchangeable, which, if done together then the user will see the picture of the performance of the process of the present and the future. "(Feigenbaum, Armand V, 1991) "Statistical quality control using SPC (Statistical Process Control) has seven (7) major statistical tools that can be used as tools for quality control, among others, namely; checksheet, histogram, control chart, Pareto diagram, cause and effect diagrams, scatter diagrams and process "(Garvin, David, 2001) Figure 1: QC Seven Tool 2.2 Control Chart "Control chart is a statistical method to distinguish the variation or deviation due to general causes and causes khusus.Peta describe improved quality control, consisting of two situations, the first is when the map control is made, the Paper ID: NOV163599 1027