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Journal : Journal of Industrial Engineering

Menurunkan Problem Reject Pinhole di Proses dengan Konsep DMAIC di PT. XYZ, Purwakarta Hikmat Mulyana M; Andira Andira; Nurhayati Surbakti
JIE Scientific Journal on Research and Application of Industrial System Vol 3, No 2 (2018)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (572.425 KB) | DOI: 10.33021/jie.v3i2.527

Abstract

PT XYZ is one of the flexible manufacturing industries. In terms of overcoming competition in the printing industry, PT XYZ built the Rotogravure company in 2011. The subsidiary is engaged in manufacturing Cylinder Rotogravure which supplies PT XYZ units. From a few years back since the establishment of this company, the target that should have been reached in amount of 5760 Cylinder / year. This target hasnot been achieved. This occurs because there is a problem in the production process reaching ± 49.4% and continues to appear which results in a disrupted delivery schedule, many customer complaints due to the low quality goods being shipped.The method used for this improvement process is the system or concept of Six Sigma namely DMAIC. From the DMAIC method, the tools used for the analysis process are the Pareto, Fishbone, 5W1H and Data Sheet diagrams. These tools are core tools that are focused on finding problems that often occur at PT XYZ. From the results of this improvement, a design is got to make the cleaning process aids, there were changes in parameters in the production process by reducing the current density and temperature in the Copper machine with a temperature of 30OC and current density of 20 A / dm2. The research and improvements that have been made are 94.45% with a total pinhole wastage of 1 cylinder unit.
Perencanaan Perawatan Preventif pada Blanking Dies untuk Mengurangi Biaya Operasinal Andira Andira; Arich Gunawan Bayu Putra
JIE Scientific Journal on Research and Application of Industrial System Vol 2, No 1 (2017)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.648 KB) | DOI: 10.33021/jie.v2i1.394

Abstract

PT. UK, an automotive producer, is one of the vendors of a motorcycle manufacturing company. During the production, it is needed Dies, jig and inspection jig. Dies is used for supporting the cutting and formingsheet metal into steel pipe for making a certain product. During the process, blanking Dies component is getting many collisions and frictions that can cause machine breakdowns. These breakdowns have an impact to production loss time. In 2016, the production was 697.41 hours. Not only the production loss, the customer deliveries were also late that caused penalty costs from customers. Therefore, the preventive maintenance is very important for the machine running during the production process especially for blanking Dies. By using FMEA, there are three critical components of three blanking Dies types. The calculation and simulation of decreasing shows that the number of breakdown can be decreased by 33,84% and the maintenance cost canbe saved by 26,22% compare to the current system.
Analisis Kelayakan Finansial Penggantian Lini Manual Menjadi Lini Otomatis Produk Refrigerator Switch di PT. MM Andira Andira; Astika Arisnawati
JIE Scientific Journal on Research and Application of Industrial System Vol 3, No 1 (2018)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.511 KB) | DOI: 10.33021/jie.v3i1.498

Abstract

Sales data of FY10 to FY 15 shows increasing of switch D-1 demand. In fulfilling the demand, budget of production have been allocated by the head company. In fact, there is gap between the budget and cost required by production department. The condition cause the capacity lower than the demand. It happened to FY16. The problem should be solved because it has bad impact to customer satisfaction. Based on the problem identification, the problem of lack of budget can caused by the wrong estimation of demand. Refer to that problem, company decide to find out the better method in forecasting of demand and assume that the mother company will determine the suitable number of budget to produce as much as demand. Several methods of forecasting have been considered and trend liner method is the best method for the company demand pattern. Lack of capacity at FY16 before will require the increasing of capacity in several next periods. Changing the manual line to be automation line is an alternative to overcome the capacity problem. The result of analysis is automation line is more efficient than manual line. It reduced the number of operator from 7 to 4 per line. Adding one automation line need 3 years to get payback with net present value $ 249,377.88, internal rate of return is 18.93% and profitability is index 1.62Keywords: Payback Period, Net Present Value, Internal Rate of Return, Profitability Index