00000ctm a22000003a 4500 UP-99796217610586660 Buklod 20130128120807.0 a grb 001 u| ta 130128s2005 xx d r |||| u| (iLib)UPD-00194803594 DENG eng LG 993 2005 E66 P37 Pasumbal, Ann Sheryl A statistical quality control study on Precision Springs Manila Inc. Anne Sheryl Pasume, Philip Reytiran, Lemuel Eric Yumul. Diliman, Quezon City College of Engineering 2005 52 leaves Feasibility study Access exclusively for UP IE students. Written permission required from the department head for NON-IE and NON-UP students or researchers Submitted in partial fulfillment of the course requirements in IE 135 : Industrial Quality Control A statistical quality control study is performed on Precision Springs Manila (PSK) Inc. from November to December 2004. Before the study is conducted, there was a large rejection rate of the actuator base product. The main problem that is investigated is wrong dimensions of the product in focus. Control charts are constructed for each critical point of the product. It is found out that the process is out of control for all these critical points, as shown by the nonrandom patterns of the plotted points. Based on the problem analysis done, the main cause is the operators? lack of training, lack of in-process inspection and machine failure. The study proponents then considered the financial viability of providing additional training, improving procedures and inspection. The estimated total cost that would be incurred would amount to Php 25,000, a small price considering the long term benefits of each recommendation. Precision Springs Manila Incorporated. Manufacturing industry. Quality Control. Industrial Quality Control IE 135. Reytiran, Philip. Yumul, Lemuel Eric. FI UP Paper UPD DENG LG 993 2005 E66 P37 Thesis