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1. 发明申请

WO2011148157A3 METHOD OF MACHINING HARD MATERIAL WITH A MINIMUM OF CHIP SEGMENTATION CHATTER 审中-公开
标题翻译：用最小的芯片切割机加工硬质材料的方法
公开(公告)号：WO2011148157A3
公开(公告)日：2012-01-19
申请号：PCT/GB2011050949
申请日：2011-05-19
申请人： UNIV SHEFFIELD , TAYLOR CHRISTOPHER MARTIN , SIMS NEIL DAVID
发明人： TAYLOR CHRISTOPHER MARTIN , SIMS NEIL DAVID
IPC分类号： G05B19/414 , B23Q15/12 , B23Q17/09 , G05B19/416
CPC分类号： G05B19/414 , G05B19/4163 , G05B2219/37434 , G05B2219/41115 , G05B2219/41256
摘要： A method of machining a hard material workpiece using a tool, including the steps of: i) obtaining a vibration function, a? (p), for the tool-workpiece combination, where the vibration function, a? (p), relates one or more indicators of vibration levels during machining to machining parameters, p, for a given orientation, ?, of the tool, relative to a feed direction of the workpiece relative to the tool during machining; ii) determining a vibration level threshold, a?max, of the vibration function, a? (p), to establish values of the machining parameters, p, that correspond to amplitudes of a first selected one of the one or more vibration level indicators wherein the amplitudes are less than or equal to the vibration level threshold, a?max; and iii) machining the workpiece with the tool at the established values of the machining parameters so that the amplitude of the first selected vibration level indicator remains at or below the vibration level threshold, a?max; wherein the step of obtaining the vibration function, a? (p), includes the steps of: A) obtaining a segmentation frequency function, seg (p), for the tool- workpiece combination for machining parameters, p; B) obtaining a plurality of frequency response functions (FRFs) for the tool-workpiece combination in a plurality of orientations over a frequency range that includes at least the fundamental frequencies of vibration of the tool and the workpiece; C) calculating a vibration function, a? (p), for the tool-workpiece combination for machining parameters, p, wherein the vibration function, a? (p), is a function of the segmentation frequency, seg (p), and the FRFs.
摘要翻译：一种使用工具加工硬质材料工件的方法，包括以下步骤：i）获得振动函数，（p），对于工具 - 工件组合，其中振动功能，a？（p）在加工过程中将一个或多个加工中的振动水平指标与工件相对于加工时相对于工具的进给方向相对于工具的给定取向θ加工成加工参数p; ii）确定振动函数的振动水平阈值，αmax，（p），以建立与所述振幅小于或等于所述振动水平阈值的所述一个或多个振动水平指示器中的第一选定的一个振幅水平指示器的振幅对应的加工参数p的值，αmax; 以及iii）使用所述工具以所确定的加工参数值加工所述工件，使得所述第一选定振动级指示器的振幅保持在或低于所述振动水平阈值a max; 其中获得振动函数的步骤，（p）包括以下步骤：A）获得用于加工参数的工具 - 工件组合的分段频率函数seg（p），p; B）在至少包括所述工具和所述工件的振动的基本频率的频率范围上以多个取向获得所述工具 - 工件组合的多个频率响应函数（FRF）; C）计算振动函数，（p），对于加工参数p的工具 - 工件组合，其中振动功能，（p），是分割频率seg（p）和FRF的函数。

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