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首页> 外文期刊>JSME International Journal. Series C, Mechanical Systems, Machine Elements and Manufacturing >Fundamental Research on Hobbing of Austempered Ductile Iron Gear (Influence of Graphite Particle on Machinability)
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Fundamental Research on Hobbing of Austempered Ductile Iron Gear (Influence of Graphite Particle on Machinability)

机译：奥氏体球墨铸铁齿轮的滚齿基础研究（石墨颗粒对可加工性的影响）

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摘要

In this study, the influence of graphite particles (number of graphite particles) in austempered ductile iron (ADI) on tool wear and finished surface roughness was investigated, using TiN and (Al, Ti) N coated high-speed steel cutting tools in hobbing. The experiments were performed using a fly tool of the same geometry as that of one blade of a hob, at the cutting speed of 47 m/min in dry cutting. As a consequence, the following points were clarified: (1) ADI having an average number of 284 graphite particles per 1 mm{sup}2 (the average diameter of 28.0 μm) showed a good machinability without causing tool failure. The tool life was improved when using the (Al, Ti) N coated tool, and the finished surface roughness R{sub}y was 3.5 μm at the end of cutting. (2) It was suggested that the adhesion of deposited metal on the rake face influences the tool failure which occurred when cutting ADI. (3) The interrelation between the center wear and the surface roughness was recognized.
机译：在这项研究中，研究了使用TiN和（Al，Ti）N涂层的高速钢切削刀具进行滚齿加工时，研究了回火球墨铸铁（ADI）中石墨颗粒（石墨颗粒的数量）对刀具磨损和最终表面粗糙度的影响。 。实验是使用与滚刀的一个刀片具有相同几何形状的飞刀进行的，干切削时的切削速度为47 m / min。结果，澄清了以下几点：（1）每1mm {sup} 2平均具有284个石墨颗粒（平均直径为28.0μm）的ADI显示出良好的可机械加工性而不引起工具故障。当使用（Al，Ti）N涂覆的工具时，工具的寿命得以改善，并且在切割结束时，最终的表面粗糙度R {sub} y为3.5μm。 （2）建议在前刀面上沉积的金属附着力会影响切削ADI时发生的刀具故障。 （3）认识到中心磨损与表面粗糙度之间的相互关系。

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