以塑性黏土模擬無毛邊萬向接頭鍛件之螺桿式複動化鍛造模具研究開發

A Study of the multi-action forging die controlled by the screws for the flashless spider forgings by using plasticine

楊俊彬(Jin-Bin Yang) ； 陳明源(Ming-Yuan Chen) ； 陳裕仁(Iu-Ren Chen)

《鍛造》 11卷4期 (2002/11) Pp. 5-10

摘要

複動化模組鍛造製程為鍛造技術發展方向之一 ，複動化鍛造之方式很多 ，不同之鍛件外形所採用之方式則有所不同 ，否則將導致材料之流動不均 ，造成缺陷。本研究利用一螺桿組為複動化之機構 ，進行複動化鍛造模具設計開發 ，並以塑性黏土為胚料進行模擬 ，探討此螺桿組之最佳設計條件。結果顯示本研究所設計之螺桿組動化機構 ，當其設計參數為上螺桿直徑30mm，螺旋角為60°，下螺管之外徑為60mm與螺旋角為23.4°時 ，可使模具運動時之上衝頭與模具之運動速度比為2 : 1，以達到期望之複動化鍛造成形條件 ，所鍛製之萬向接頭塑性黏土鍛件其流線均勻、合理 ，顯示以螺桿組為複動化鍛造模組之機構是極為可行。

關鍵字

複動化,螺桿,塑性黏土

並列摘要

The multi-action forging process is one of developing directions of forging technologies. However, there are many types in multi-action forging. It depends on the shape of the forgings for which type to be used. Or, the metal flow will be not uniform and the defects will be resulted in. In this study, the multi-action die is designed and developed by using a set of screws and the forging simulation is conducted by using plasticine to investigate the optimum conditions for the design of the screws. The results show the design variables are optimum when the diameter is 30 mm and the screw angle is 60° for the upper screw rod and the outer diameter is 60 mm and the screw angle is 23.4° for the lower screw tube. It makes the relative velocity between the upper punch and the die to be two to one, which is the expected condition. The plasticine forgings are with the uniform metal flow. Therefore, it is feasible to use a set of screws as the multi-action mechanism for the multi-action forging die set.

並列關鍵字

Multi-Action,Screw,Plasticine