OPTIMALISASI WAKTU PRODUKSI DENGAN METHODE CPM (CRITICAL PATH METHOD) PT.ANEKA ADHILOGAM KARYA KLATEN

ROSY DAYANTI, INTAN (2018) OPTIMALISASI WAKTU PRODUKSI DENGAN METHODE CPM (CRITICAL PATH METHOD) PT.ANEKA ADHILOGAM KARYA KLATEN. Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

Business competition is currently getting tighter. PT. Aneka Adhilogam Karya is one of the industries engaged in the casting industry with a job order system, one of its products is Manhole 650 x 410. PT. Anekha Adhi Logam Karya must be able to compete in this tight competition. This company has not been systematic in planning the time and costs needed. The problem that companies often face in product completion time is because the completion time does not match (exceeds) the time agreed between the company and the customer, causing the cost used to increase. One of them is in the processing of the 650 x 410 manhole product, the agreed time is 60 working days, but the completion time is more than 10 days. In addition, the inaccurate completion time of the company's order will incur more costs than the initial plan. In this study, the data used are the sequence of the production process, production process time, employee salary costs, which are obtained by conducting direct observations. The method used to process the data is CPM (critical path method). CPM is a project network scheduling method that uses a balance between time and cost on each activity that can be completed faster than the specified time by changing and adding costs. This critical path activity has a slack time of zero. This activity must be completed on time to prevent project completion from being delayed. In addition to using the CPM method, a standard time calculation is carried out to determine the standard time for completing the 650x410 Manhole. In this study, several work elements were found which are critical paths as follows: smoothing, welding, smoothing, painting, packing. Where there should be no delay in work when on the work elements. The optimal time to produce a 610 x 450 manhole for 56 days plus 2 hours of overtime per day. And the optimal cost for employee salaries is Rp. 42,269,119.68, the difference in cost with the initial cost is Rp. 764,389.92.

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