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首页> 外文会议>International conference on advanced ceramics and composites >MACHINAB1L1TY STUDIES OF AI/SiC/B_4C METAL MATRIX HYBRID COMPOSITES USING PCD 1600 GRADE INSERT
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MACHINAB1L1TY STUDIES OF AI/SiC/B_4C METAL MATRIX HYBRID COMPOSITES USING PCD 1600 GRADE INSERT

机译：使用PCD 1600级插入的AI / SiC / B_4C金属矩阵混合复合材料的Machinab1L1111111111111111111。

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摘要

Hybrid Metal Matrix Composites (MMC) (Al-SiC/B_4C) are widely used in aeronautical and automobile industries due to their excellent mechanical and physical properties. Due to the above properties these composites will slowly replace the conventional material application in aeronautical and automotive industries. However machining these composites is difficult because of the hard reinforcement of SiC and B4C particles. Wear is high which reduces the life of the tool. Conventional and coated tool materials lose their life within a short period of time. This paper presents the experimental investigation on turning A356 matrix metal reinforced with 10 % by weight of silicon carbide (SiC_p) particles and 5% by weight of boron carbide particles (the particle size of the silicon carbide and boron carbide ranges from 20 microns to 50 microns) fabricated in house by stir casting method. Fabricated samples are turned on medium duty lathe of 2kW spindle power with poly crystalline diamond (PCD) inserts of PCD grade 1600 at various cutting conditions. Parameters such as power consumed by main spindle, machined surface roughness, and tool wear and tear are studied. Scanning Electron Microscope (SEM) images support the result. It is evident that surface finish and power consumed are good for PCD grade 1600 at higher cutting speed also tool wear is strongly dependent on abrasive nature of hard reinforcement particles.
机译：杂化金属基质复合材料（MMC）（AL-SIC / B_4C）由于其优异的机械和物理性质而广泛应用于航空和汽车行业。由于上述性质，这些复合材料将慢慢取代航空和汽车行业的传统材料应用。然而，由于SiC和B4C颗粒的硬增强，加工这些复合材料很难。磨损很高，从而减少了工具的寿命。常规和涂层工具材料在短时间内失去了生命。本文介绍了用10重量％的碳化硅（SiC_P）颗粒加固的转向A356基质金属的实验研究，碳化硼颗粒重量（碳化硅粒度和碳化硼的粒径为20微米至50通过搅拌铸造方法在房屋中制造的微米。在各种切割条件下，使用POM Crystalline Diamond（PCD）在各种切割条件下打开2KW主轴功率的中型车床的中型车床。研究了主要主轴，机加工表面粗糙度和刀具磨损的功率等参数。扫描电子显微镜（SEM）图像支持结果。显而易见的是，在较高的切割速度下，耗尽的表面光洁度和消耗的功率适用于PCD级1600，刀具磨损强烈依赖于硬增强颗粒的磨蚀性质。

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