Investigation of the Machining Behavior of Metal Matrix Composites (MMC) Using Chip Formation Simulation
Investigation of the Machining Behavior of Metal Matrix Composites (MMC) Using Chip Formation Simulation
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DOI：
10.4028/www.scientific.net/amr.223.20
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发表时间：
2011-04
期刊：
影响因子：
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通讯作者：
V. Schulze;F. Zanger;Jürgen Michna;Florian Ambrosy;R. Pabst
中科院分区：
文献类型：
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作者：
V. Schulze;F. Zanger;Jürgen Michna;Florian Ambrosy;R. Pabst
金属基复合材料（MMC）的加工会对刀具产生循环载荷，这给加工带来了新的挑战。特别是由碳化硅（SiC）或氧化铝（Al2O3）组成的分布式增强，引起特别高的机械负荷。金属基复合材料的发展是指向更高比例的增强，这影响了最终的力和温度。通过切削仿真研究了不同颗粒填充度、颗粒直径、切削速度和刀具几何形状对前角和刃口半径的影响。对于该过程，采用了自行设计的连续重网格程序，实现了双相材料行为。开发的仿真模型能够研究金属基复合材料的加工行为，从而通过多次仿真确定理想的工艺策略和刀具几何形状。
The machining of metal matrix composites (MMC) induces cyclic loadings on tools, which creates new challenges for machining. In particular the distributed reinforcement, consisting of silicon carbide (SiC) or aluminum oxide (Al2O3), evokes especially high mechanical loads. The development of metal matrix composites is pointing towards higher fractions of reinforcements, which affects the resulting forces and temperatures. In this regard the influence of varying particle filling degrees, particle diameters, cutting velocities and tool geometries in terms of rake angle and cutting edge radius have been investigated by means of cutting simulation. For the process a self-designed continuous remeshing routine was used for which a dual phase material behavior has been implemented. The developed simulation model enables investigations of the machining behavior of metal matrix composites to the extent that ideal process strategies and tool geometries can be identified by multiple simulations.