Multi-scale friction modeling for sheet metal forming: The mixed lubrication regime

被引：64
|
作者：
Hol, J. [1 ]
Meinders, V. T. [2 ]
Geijselaers, H. J. M. [2 ]
van den Boogaard, A. H. [2 ]
机构：
[1] Triboform Engn, NL-7500 AE Enschede, Netherlands
[2] Univ Twente, Fac Engn Technol, NL-7500 AE Enschede, Netherlands
来源：
TRIBOLOGY INTERNATIONAL | 2015年 / 85卷
关键词：
Mixed lubrication; Boundary lubrication; Multi-scale friction modeling; Sheet metal forming; PARTIAL HYDRODYNAMIC LUBRICATION; AVERAGE FLOW MODEL; PLASTIC CONTACT; ROUGH SURFACES; ASPERITY DEFORMATION; SIMULATION; WEAR;
D O I：
10.1016/j.triboint.2014.12.017
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A mixed lubrication friction model is presented to accurately account for friction in sheet metal forming FE simulations. The advanced friction model comprises a coupling between a hydrodynamic friction model and a boundary lubrication friction model, based on the lubricant film thickness. Mixed lubrication interface elements are introduced to solve the governing differential equations. The interface elements have been implemented in FE forming software. Two deep-drawing applications are discussed to demonstrate the performance of the friction model. Results show friction coefficients that vary in space and time, and depend on external process settings like the amount and type of lubricant. A comparison with experimentally obtained punch-force displacement diagrams is made to prove the enhanced predictive capabilities of FE forming simulations. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：10 / 25
页数：16
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