Computer simulation of stone frame sawing process using diamond blades
Computer simulation of stone frame sawing process using diamond blades
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DOI：
10.1016/s0890-6955(03)00019-1
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发表时间：
2003-05-01
影响因子：
14
通讯作者：
Clausen, R
中科院分区：
文献类型：
--
作者：
Wang, CY;Clausen, R
在前人研究的单刃、单块划痕试验的基础上，对框锯过程中石材与锯片的接触面积、有效切削刃数以及每颗金刚石磨粒、单块和锯片的切削力进行了计算机模拟。用一种新的方法计算了单位面积上的金刚石磨粒数、每段金刚石磨粒的分布以及金刚石磨粒的有效切削深度。采用蒙特卡罗方法随机生成金刚石磨粒的位置。结果表明，在切削行程中，随着切削深度的增加，只有一半的金刚石颗粒在节块表面上切削石材，且移动距离有限。由不同片段创建的凹槽的相互作用移除石头并生成锯缝。切削力仿真结果与框锯机实测数据趋势一致。切削进给量和刀盘的切削性能是决定切削力和刀盘磨损的主要因素。刀片与石材之间的最佳恒定接触面积取决于段间距、段数和段尺寸、块长度与刀片有效切割长度的比率等。（C）2003 Elsevier Science Ltd.保留所有权利。
Based on the results of scratching tests with single point tools and single segments in a previous study, the contact area between stone and blade, the number of effective cutting edges and the cutting forces per diamond grit, per segment and blade in the frame sawing process are simulated by computer. The number of diamond grits per unit area, the distribution of diamond grits per segment and the effective depth of cut of diamond grits are calculated by a new method. The Monte Carlo method is applied to generate the position of diamond grits randomly. The results show that in cutting stroke, only half of the diamond grits on the segment surface cut stone with the depth of cut increasing and a limited moving distance. The interactions of the grooves created by different segments remove the stone and generate the saw kerf. The simulation results of cutting forces are consistent in tendency with the data tested in a frame sawing machine. Cutting feed and the cutting performance of the segments are the major factors which determine the cutting forces and segment wear. The optimized constant contact area between blade and stone depends on the segment spaces, the segment number and the segment size, the ratio of the length of block and the effective cutting length of blade etc. (C) 2003 Elsevier Science Ltd. All rights reserved.