Modelling of Grain Motion for Three-body Abrasion☆
Modelling of Grain Motion for Three-body Abrasion☆
复制标题
三体磨损的颗粒运动建模â
DOI：
10.1016/j.procir.2015.03.083
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Riemer
中科院分区：
文献类型：
--
作者：
Loresch;Riemer
三体磨损的表面形成基本上比两体磨损更难建模。与嵌入抛光垫中的颗粒以及因此用于两体研磨的时不变工具几何形状相比，由于滚动磨料颗粒，这里可变工具几何形状占主导地位。尽管如此，三体研磨是玻璃和陶瓷表面精加工中的一个重要研磨过程，为了更好地理解工艺过程和改进工艺设计，需要对具有松散颗粒的机械研磨加工的表面形成进行建模。通过将抛光垫下的整体去除体积分割成单个颗粒的去除并根据抛光垫下的总去除体积分配总抛光力来处理本体磨损。单个晶粒与工件材料的相互作用。这种新的有条理的方法旨在确定每个颗粒的离散时间步长中的材料去除，并进一步确定所生成的新表面形貌。利用抛光实验中磨料浓度、磨料形态、抛光载荷、表面形貌和整体去除率等数据建立了该解析-经验模型。该模型的关键要素是单个颗粒的几何形状，它们在载荷下的滚动运动和材料去除原理。本文介绍了用数值时间步长模型模拟单磨粒滚动运动的方法。
Surface formation for three-body abrasion is essentially more difficult to model than for two-body abrasion. In contrast to grains embedded in the polishing pad and therefore time-invariant tool geometry for two-body abrasion, here a variable tool geometry is prevailing as a result of the rolling abrasive grains. Nevertheless, three-body abrasion is an important abrasive process in the surface finishing of glass and ceramics and the modelling of the surface formation for mechanical abrasive machining with loose grains is required for a better process understanding and enhanced process design.The modelling of the surface formation for three-body abrasion is dealt with by splitting the integral removal volume under the polishing pad into the removal of single grains and distributing the total polishing force according to the interaction of individual grains with the workpiece material. This new methodical approach intends to determine the material removal in discrete time steps for every grain and further on the generated new surface topography. Data from polishing experiments like concentration and form of abrasives, polishing load, surface topography and integral removal are applied to set up this analytic-empiric model. Crucial elements of this model are the geometry of single grains, their rolling motion under load and the principle of material removal. In this paper the simulation of the rolling motion of single abrasive grains using a numerical time step model is introduced.
研磨过程中表面形成和去除率评估的过程分析
DOI：
--
发表时间：
2001
期刊：
影响因子：
--
作者：
U. Heisel;J. Avroutine
通讯作者：
J. Avroutine
凹槽尺寸、磨损率和磨损表面形貌之间的相关性
DOI：
--
发表时间：
1987
期刊：
影响因子：
--
作者：
S. Jacobson;P. Wallén;S. Hogmark
通讯作者：
S. Hogmark