應用磨耗模式和製程模擬於不銹鋼螺帽溫鍛模具之幾何評估

Application of Wear Model and Process Simulation for Evaluation of Geometric Design of Forging Die for Stainless Steel Nut Warm Forging

李榮顯(R. S. Lee) ； 陳彥儒(Y. J. Chen) ； 陳博涵(P. H. Chen) ； Charles-Henri Lepeut

《鍛造》 19卷3期 (2010/09) Pp. 36-45

https://doi.org/10.29791/Forging.201009.0005

摘要

本文主要研究結合有限元素軟體、磨耗模式來預估溫鍛模具磨耗並預測模具壽命。將Archard磨耗模式中的磨耗係數和硬度表示為溫度的函數，並藉由有限元素軟體模擬取得鍛造資訊，包括：正向接觸應力、胚料與模具相對滑移距離與胚料溫度等，將此資訊代入磨耗模式中以求得預估的磨耗量。為了提升目標模具之壽命，變化模具幾何參數，求得不同幾何參數下的磨耗量改變，得到較佳之模具幾何設計，以提升模具壽命。

並列摘要

This research focuses on the tool wear evaluation of warm forging process using finite element simulations. A modified wear model based on the model originally proposed by Archard is applied together with the process simulation. The simulation with modified wear model can be used for evaluating the tool wear depth in warm forging. The method can be used for evaluating wear depth for different die geometry designs. An industrial case of stainless steel nut forging will be presented to demonstrate that the die life can be increased through better design of die geometry based on the die wear evaluation using finite element simulation.