摘要
建立了管材弯曲成形过程中防皱模的热力耦合模型,利用有限元软件ABAQUS/Explicit的非线性功能,数值模拟了弯管过程,揭示了防皱模在弯曲过程中应力的分布规律。采用Archard磨损模型研究了不同管厚度、管坯材料以及摩擦系数对弯管机防皱模磨损的影响规律。这对弯管工艺、模具设计和模具寿命的预测能提供一些参考。
The thermo-mechanical numerical wear model of shrink-proof die in tube bending forming process was established. The bending process was numerically simulated by using nonlinear function of the finite element soflware ABAQUS/Explicit. The stress distribution of shrink-proof die in the process of bending was revealed. The influences of different thickness and materials of the pipe, friction coefficients on the die wear were researched by adopting Archard＇s wear model. This can provide some references for the design of die, bending process and the prediction of die life.
出处
《热加工工艺》
CSCD
北大核心
2014年第1期112-114,118,共4页
Hot Working Technology
关键词
弯曲成形
有限元
磨损
防皱模
bending forming
finite element
wear
shrink-proof die
