A Study on Forming Behavior of Husk-Powder Composites

• Main Authors: KuoCheng Hsiao, 蕭國成
• Other Authors: Dai Wen Long
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/20169293922351319441

碩士 === 逢甲大學 === 機械工程學系 === 87 === This study is devoted to investigation of the forming behavior of husk composites under deep drawing and development of control algorithm for the net-shape forming of husk composite, using experimental approach method because there is no suitable-mathematical model and related theory can be used. In the meantime, the experimental results are categorized and used as design-base of the deep drawing of husk composites. Based on the experimental results, it is found that the forming conditions significantly influence the drawing depth. The dimensions of mold-set is designed as the diameter of the upper mold 70mm, the diameter of the lower mold 120mm, and the thickness of blank 1.0mm. When forming husk-sheet blanks to a bowl by using single-action compression-molding process, the maximum bowl depth is approximately 27mm. However the maximum bowl depth is increased to 37.5mm by using compound-action compression-molding process associated with wrinkling guiders. Meanwhile the design window will have much more tolerance and the better quality of product is under controll. Consequently the productivity and competability are improved and the overall cost will be simultaneously reduced to a reasonable level.