| Summary: | 碩士 === 國立勤益科技大學 === 機械工程系 === 104 === Nowday's 3D printing is a developed technology on usage. Many manufacturers are using 3D printing to fribricate parts directly in order to save the cost of mold. Therfore, the 3D printing make trend on large numbers of customization. However, the one of the problem of this technology is without a benchmark to define the strength cause the unstable quality to each product. The purpose of this study is useing 3D printing to make specimens that base on polylactic acid (PolyLacticAcid, PLA) and three different tensile test specification (ASTM D638, ISO 527-2, JIS K7161). Then,chahging three different diameter size, four different filling angles and four different colors on each specimens to do the tensile test. Finally, collect and ranking all datas to acquire the relationship between diameter, color, fill angle and intensity. The result shows that the specimen with 0.4mm diameter, black and 45 degree fill has the highest tensile strength and 0.2mm diameter, pink and 0 degree fill has the lowerest tensile strength. This study can be used back to the 3D printing that choose the appropriate angle, diameter and color to fullfill the design strength or saving material and time.
|
|---|
