Intervention in the stamping process has improved work quality, satisfaction and efficiency at PT ADM Jakarta

摘要

The body component of a car is the finished product component that is mainly produced by a large press machine. In the production process of body components of a car in the stamping plant division, the manual task is performed by two operators feeding metal sheets into the press machine simultaneously. After the knobs were pressed, the press machine started to stamp the material sheet and the outcoming product is taken by the next operator. This task is performed repeatedly until the last sheet. It is a manual and comprehensive task that is combined with speed in operating the big press machine involving muscular tension which at the end could cause muscular complaints and premature fatigue, and which could decrease production and productivity. The current study of ergonomic intervention in the stamping process of body components of cars was conducted in order to determine whether ergonomic intervention could improve the work quality, satisfaction and time efficiency in the stamping process. The subjects of study were 10 persons who were taken randomly. It was designed experimentally with treatment by subject design. The method of data collection was by questionnaire distribution and direct measurement of the subject's condition, time of stamping process and work environment before and after intervention. The Shapiro Wilk test showed that all of the data had normal distribution and was followed by t-paired for data on work quality, work satisfaction, time efficiency, and the environment. The significance level is set at 5%. The research result showed that work quality was improved (muscular complaints were decreased by 6.65%, fatigue was decreased by 5.47% and work boredom was decreased by 5.87%), work satisfaction was improved by up to 6.43%, time efficiency of stamping process was improved by up to 10.7%, production was improved by up to 2.59% and productivity was improved by up to 32.65%. Hence, the study concludes that ergonomic intervention in the production process of car body components in the stamping plant division could improve work quality, work satisfaction and time efficiency.