期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：8
页码：7021
DOI：10.15680/IJIRSET.2015.0408044
出版社：S&S Publications
摘要：Deep drawing is a most important technique for forming sheet metal parts. It is widely used for massproduction of cup shapes in automobile, aerospace and packaging industries. Defectives due to wrinkles and excessiveroughness alter the product geometry from the designed one, causing difficulties in finishing of sheet products. Thesedefects directly lead to increase the manufacturing cost. Surface roughness and uniform wall thickness are the majorchallenges in the deep drawing process. Three process parameters namely blank holder force, die shoulder radius andpunch nose radius were optimized in this research to achieve good surface finish and uniform wall thickness. By UsingTAGUCHI’s signal-to-noise ratio, it is determined that the optimum levels of the above three factors, for the most evensurface finish, are found to be blank holder force of 8 KN, die shoulder radius of 8 mm and punch nose radius of 5mmwhich is 1.55 μm. Similarly, for wall thickness the optimum levels of the above three factors, for the most even wallthickness, are found to be blank holder force of 6 KN, die shoulder radius of 4 mm and punch nose radius of 5mmwhich is 1.36mm. By using ANOVA it is also concluded that the blank holder force has major influence followed bydie shoulder radius and punch nose radius on the surface roughness and wall thickness of the deep drawn cup of AL6061 sheet.
关键词：deep drawing; aluminium alloy; surface roughness; thickness distribution; signal to noise ratio
