Modeling and Analyzing the Shearing of Aluminum Sheets by Using Ultrasonic Vibrations

超音波沖切鋁板之建模與分析研究

葉維磬(Wei-Ching Yeh) ； 朱祖孝(Tsu-Hsiao Chu) ； 傅光華(Kuang-Hua Fuh)

《中國機械工程學刊》 37卷4期 (2016/08) Pp. 343-350

摘要

本文旨在以實驗設計與反應曲面法研究超音波輔助對沖切之影響。並對超音波對成形後之毛邊高度進行了系統性的研究。結果顯示，超音波輔助沖切可降低毛邊之高度並提高成形斷面之品質。而平均成形力之降低主要是由應力疊加定律所導致。

並列摘要

The application of ultrasonic vibrations superimposed on wire drawing, deep drawing, upsetting, and rolling is developed in the relevant literature. Few studies have attempted to develop an ultrasonic vibration application for the process of shearing aluminum sheets. This paper investigated the effects of the superimposed punch with ultrasonic vibrations during the shearing process by applying experimental design and response surface methodology. The effects of the ultrasonic vibrations on the burr height were systematically examined. The results show that ultrasonic vibrations can decrease the burr height formation and improve the edge profile quality. The reduction of mean forming force by high-frequency vibrations is primarily caused by the stress superposition mechanism.

並列關鍵字

burr height ； ultrasonic vibrations ； shearing ； response surface methodology