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首页> 外文期刊>MATEC Web of Conferences >Feasibility study on production of Metal Matrix Composite (MMC) material for Electrical Discharge Machining (EDM) tools using Rapid Prototyping (RP) technique
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Feasibility study on production of Metal Matrix Composite (MMC) material for Electrical Discharge Machining (EDM) tools using Rapid Prototyping (RP) technique

机译：使用快速原型设计（RP）技术的电气放电加工（EDM）工具生产金属基质复合材料（MMC）材料的可行性研究

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摘要

In common practice, tools for EDM have traditionally been made by machining copper or graphite to the required profile using CNC machines. Increasing the degree of complexity of any tooling design for any operations results in a corresponding increase in time and cost required. With the advent of rapid prototyping techniques, the problem of making tools with complex shapes becomes much simpler and easy. The main aim of this research was to develop new EDM electrode material through a novel approach by rapid prototyping (RP) technique. In this study, the potential application of copper (Cu) reinforced alumina (Al2O3) fabricated with various compositions as an EDM electrode was investigated. The electrodes were fabricated by Canon PIXMA IP 1800 printer and underwent sintering temperature at 85 % and 95 % melting point of copper. The EDMed workpiece was aluminium and the electrodes surface was analyzed through scanning electron microscope (SEM). Findings showed that the electrode with Cu - 0 vol. %Al2O3 composite and sintered at temperature 977 °C resulted in highest metal removal rate (MRR) and lowest electrode wear rate (EWR) while Cu – 10 vol. %Al2O3 composite and sintered at temperature 977 °C revealed a better surface finish than other electrodes. An increase in Al2O3 content in general will increase the hardness of tool, as a trade-off, the conductivity was reduced.
机译：在常见的做法中，通过使用CNC机器将铜或石墨加工铜或石墨来制造EDM的工具。对于任何操作的任何工具设计的复杂性增加，任何操作都会导致相应的时间和成本增加。随着快速原型技术的出现，具有复杂形状的工具的问题变得更加简单，更容易。该研究的主要目的是通过快速原型设计（RP）技术通过新方法开发新的EDM电极材料。在该研究中，研究了用各种组合物制备用作EDM电极的各种组合物的铜（Cu）增强氧化铝（Al 2 O 3）的潜在应用。电极由佳能PIXMA IP 1800打印机制造，并在铜的85％和95％熔点下进行烧结温度。通过扫描电子显微镜（SEM）分析EDMED工件是铝，电极表面分析。结果表明，具有Cu - 0 Vol的电极。在977℃的温度下，％Al 2O3复合材料和烧结，导致最高金属去除率（MRR）和最低电极磨损率（EWR），而CU - 10 Vol。 ％Al 2O3复合材料和烧结在977°C的温度下显示比其他电极更好的表面光洁度。 Al2O3含量的增加通常会增加工具的硬度，作为权衡，导电性降低。

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