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Machinability of a silicon carbide particle-reinforced metal matrix composite

机译：碳化硅粒子增强金属基质复合材料的可加工性

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This paper presents a numerical test program to model the microstructural change associated with the machining of a particle-reinforced metal matrix composite (PRMMC). Composite materials comprising 30% and 40% volume fraction of SiC particle-reinforced 2024 aluminum alloy were modeled separately. The random particles model was adopted to analyze the micro-mechanical problems in PRMMCs. Simulation of the metal cutting process was performed using ABAQUS, an elasto-viscoplastic finite element analysis (FEA) code. Two-dimensional finite element (FE) simulations of the deformation and damage evolution in a SiC particle-reinforced aluminum alloy composite, including interphase, were performed for different microstructures and particle volume fractions of the composites. The FEA results were found to be similar to those experimentally obtained from the machined test pieces using a scanning electron microscope (SEM). On the basis of the simulation and experimental results, we obtained the effect of machined surface quality and cutting parameters on the residual stress distribution in the composite.
机译：本文提出了一种模拟与粒子增强金属基质复合物（PRMMC）的加工相关的微观结构变化的数值测试程序。包含30％和40％体积分数的SiC粒子增强2024铝合金的复合材料分别进行了建模。采用随机粒子模型来分析PRMMCS中的微机械问题。使用ABAQUS，ELASTO-VIDOPOLACTIC UNITICE分析（FEA）代码进行金属切割过程的模拟。对于不同的微观结构和复合材料的颗粒体积分数，对SiC粒子增强铝合金复合材料（包括间相之间的变形和损伤演化）的二维有限元（Fe）模拟。发现FEA结果类似于使用扫描电子显微镜（SEM）从机加工试验片实验获得的结果。在模拟和实验结果的基础上，我们获得了加工表面质量和切削参数对复合材料中残余应力分布的影响。

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