Improving an Electrostatic Powder Coating Process via Signal to Noise Response Surface | Science Publications

American Journal of Applied Sciences

Pongchanun Luangpaiboon¹ 

关键词: Constrained optimization;    Modified Complex Method (MCM);    mismatch level;    Electrostatic Powder Coating Process (EPCP);    Response Surface Methodology (RSM);    Evolutionary Operation (EVOP);    chemometrics;    Modified Simplex Method (MSM);    metallic paint thickness;   

DOI  :  10.3844/ajassp.2010.1521.1527

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: In a coating process, the master plate referenced brightness or colorshade was critical to the exterior appearance on aluminum alloy wheels. The quality measures ofinterest are the metallic paint thickness values on four areas. Because of these lower quality levels, themanufacturer has spent more on the cost of restudy or scrap as well as the longer production time.Approach: An expert system revealed seven process variables affecting those quality characteristics.Taguchi signal to noise ratio or SN of paint thickness values on the outboard spoke area wasdetermined as a process response whereas SN on the remaining areas of window outboard, windowbetween spoke and inboard spoke became merely process constraints. A constrained response surfaceoptimization method and a modified complex method were performed to move the current operatingcondition towards the optimum. Results: The new settings improved the paint thickness values interms of both the average and the standard deviation on all critical areas except the window betweenspoke. Conclusion: As expected, the implementation brings the reduction of the metallic paintconsumption and the mismatch level of color shade.

【 授权许可】

Unknown