自行車齒盤鍛壓之有限元素分析

Finite Element Analysis of Forging-press Process for Chain Wheel of Bicycle

陳狄成(Dyi-Cheng Chen) ； 尤麒熊(Ci-Syong You) ； 粘芳綾(Fung-Ling Nian) ； 賴冠穎(Gua-Nying Lai)

《鍛造》 19卷4期 (2010/12) Pp. 14-20

https://doi.org/10.29791/Forging.201012.0002

摘要

近年來由於環保節能意識抬頭，其中以自行車最具代表性。自行車齒盤製程中許多加工因子必須被控制以獲得加工所需之塑性應變與設計公差値，主要的設計因子包括模具潤滑、沖頭速度、胚料溫度等。本文使用剛塑性有限元素DEFORMTM 3D軟體，研究鋁合金（A6061）自行車齒盤鍛壓成型的塑性變形行為，在不同鍛壓條件下，以分析齒盤胚料鍛壓後等效應變、等效應力、磨損、熱傳及模具徑向負荷分布等，並用模擬軟體分析鍛壓過程中胚料微結構之金相組織變化，分析結果希望能確認有限元素軟體對自行車齒盤成形之適用性。

關鍵字

自行車齒盤 ； 有限元素 ； 鍛壓 ； 鋁合金

並列摘要

In recent years, It gained attention because environmental protection and energy conservation consciousness. It most had the representation by the bicycle. In processes of chain wheel of bicycle, many factors must be controlled to obtain the required plastic strain and desired tolerance values. The major factors include the lubricant of die and mold, the ram velocity, and the temperature of billet. This paper employs the rigid-plastic finite element (FE) DEFORMTM 3D software to investigate the plastic deformation behavior of aluminum alloy (A6061) workpiece as it is forging-press for chain wheel of bicycle. Under various forging-press conditions, it analyses the effective strain, the effective stress, the wear, heat transfer and the die radius load distribution of the workpiece. Moreover it used simulative software to analyze its forging-press process microstructure changing. The analytical results confirm the suitability of the current finite element software for forming of the chain wheel of bicycle.

並列關鍵字

Chain wheel of bicycle ； Finite element ； Forging-press ； Aluminum alloy