數值模擬於溫鍛模具磨耗分析之應用

Application of Numerical Simulation for Wear Analysis of Warm Forging Die

李榮顯(Rong-Shean Lee) ； 陳怡安(Yi-An Chen) ； 周金龍(Jin-Long Jou)

《鍛造》 10卷4期 (2001/12) Pp. 1-6

https://doi.org/10.29791/Forging.200112.0001

摘要

溫間鍛造因其模具受到高溫及高壓力之作用，因此，模具磨損較之傳統熱鍛及冷鍛來得嚴重，成為影響量產性之關鍵因素之一。本文嘗試結合實驗、磨耗理論與電腦數值模擬解析技術來預測溫鍛模具之磨耗。在圓環壓縮實驗過程中，經由線上量測裝置作紀錄與電腦模擬結果比對修正，得到不同溫度下最適切之摩擦係數。模具的磨耗狀況則在450℃以下進行高溫磨耗試驗，測得不同溫度與壓力下之磨耗係數。最後實驗結果結合Archard磨耗理論與電腦模擬解析方法，實際應用於汽車傳動軸外輪之溫鍛模具磨損分析，概估出該模具之磨損壽命。

並列摘要

Since warm forging die sustains higher temperature and working pressure, the die wear is faster than those of hot forging and cold forging and becomes one of the major factors which affect quantity production. The purpose of this research is combining the experimental techniques, wear theory and numerical simulation method to predict the wear of warm forging die. In the ring compression test, the on-line recording system was setup to correct the computer simulation results and get the more suitable friction coefficients in different temperatures. The wear coefficients in different temperatures and pressures were acquired from high temperature wear experiment. Finally, the Archard wear theory and computer simulation were used to analyze the warm forging of automotive transmission outrace and predict the die wear condition.