Optimal Condition of Metal Plating Process for Reducing Defect in Process by Design of Experiment
Keywords:
Plating process, Design of experiment, Fractional factorial designAbstract
This research aims to find the factors affecting the production process and the optimal conditions in setting the appropriate manufacturing factors. In reducing the plating process defect, it was found from the case study that, 4.52 percent of the thicknesses did not meet the manufacturer’s standard. From the manufacturer study result, it was found that there were 5 factors involving in the processes; Current in plating process, Current in Electro deflash process, Time in Electro deflash process, Water pressure in water jet cleaning process and Conveyor speed in water jet cleaning process. This research employed fractional factorial design to analyze the factors affecting the specimen thickness in plating process. The significant factor was PL current. The experimental results for finding the optimal condition in the manufacturing process shown that Current in plating process at 5 Amp., Current in Electro deflash process at 60 Amp., Time in Electro deflash process at 30 Sec., Water pressure in water jet process at 2.0 Bar and Conveyor speed in water jet process at 40 Cm./Minute give the average plating thickness of 10.66 µm. 3,000 specimens were produced according to the optimal condition. There was no defect associated with specimen thickness occurred and reduce time by 1,084 minutes per month when there is no defect in the process.
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