Groove deformation analysis of a single plough on inner copper tube
Groove deformation analysis of a single plough on inner copper tube
复制标题
内铜管单犁坡口变形分析
DOI：
10.1016/j.jmatprotec.2011.05.007
复制
发表时间：
2011-11-01
影响因子：
6.3
通讯作者：
Deng, Da-xiang
中科院分区：
文献类型：
--
作者：
Lu, Long-sheng;Tang, Yong;Deng, Da-xiang
犁削法是一种制备沟槽状微通道的有效方法。提出了一种在铜管内表面加工沟槽的犁削方法，并建立了犁削刀具法向截面基准系统。建立了基于DEFORM 2001版的犁耕过程有限元模拟方法，分析了犁耕过程中的应力分布、速度分布和犁耕力。通过有限元模拟和试验研究，探讨了犁削槽形的表面质量和几何形状，分析了犁削深度对槽形变形的影响。结果表明，犁削后铜管内壁同时产生了V形和U形两种沟槽。随着犁削深度的增加，沟槽形状、有效应力和犁削力均增大。为保证内铜管坡口加工的顺利进行，犁削深度应小于变形层最大深度与管壁厚度相等的深度。(C)2011 Elsevier B.V.保留所有权利。
Plough is a useful method to fabricate groove-shaped microchannels. In this paper, a plough method to manufacture grooves on inner surface of copper tube was present, and a normal section reference system of plough tool was set up. A FEM simulation approach operated on DEFORM ver.2001 was established to analyze stress distribution, velocity distribution and plough force during plough. Both FEM simulations and experiments were conducted to discuss the grooves surface quality and geometry, to analyze the influence of plough depth on groove deformation. Results show that two kinds of grooves, which are V-shaped and U-shaped, generate on the inner surface of copper tube at same time after plough. The grooves geometries, effective stress and plough force increase as the plough depth increases. To manufacture grooves on inner copper tube successfully, the plough depth should be smaller than the depth where the maximum depth of deformation layer is equal to the tube wall thickness. (C) 2011 Elsevier B.V. All rights reserved.