| Summary: | 碩士 === 國立高雄第一科技大學 === 機械與自動化工程研究所 === 101 === In order to develop Bevel Gear of Long Shaft Forging Process by adopting SCM420 low-carbon Cr-Mo alloy steel. First, we establish the 3D surface model of the standard bevel gear by the RE technology. The Taguchi Method and the DEFORM-3D software was applied to a L9(3X4) orthogonal experimental design . The eorner radius of forging, die shape design, forging process and material temperature are four parameters for the analysis. By the ANOVA(analysis of variance), we can find the parameters which influence the punch load and the optimum combination of parameter values. In this study three methods such as forging with vertical axis Single-action, vertical axis Multi-action, Traditional-Mold Forging were employed to conduct this research.
According to the Taguchi Method and the DEFORM-3D software, we can receive the best combination is 0.2-radius of eorner, 3rd kind of mold design, forging process and material temperature in 150℃ ,and predict the forming characteristics of the material and the maximum effect stress of die effectively. In the actual forging experiment, the forging load of the best combination was 107 tons, and the forging load was 143 tons for the vertical axis multi-action, .Moreover, the forming loads can be reduced to prolong the lifecycle of the punch by Traditional-Mold Forging. Through the research methods in this study, the mass of the production, of bevel gear, can be produced feasibly.
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