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    • 6. 发明授权
    • Method of qualitatively ascertaining the position and degree of severity of chatter marks in a fine-machined surface of a workpiece
    • 定性确定工件精加工表面的颤振痕迹的位置和程度的方法
    • US06873722B2
    • 2005-03-29
    • US09855845
    • 2001-05-16
    • Tobias HerckeNorbert RauMichael Seibold
    • Tobias HerckeNorbert RauMichael Seibold
    • B23Q17/20B23Q17/24G01B21/30G06K9/00
    • G01B21/30
    • The invention relates to a method of contactlessly ascertaining chatter marks in finely-machined workpiece surfaces, with the following steps: a contactlessly operating, high-resolution surface-measuring method is used to generate from the workpiece surface a data record representing the actual microtopography of the workpiece surface, to take away from this a data record representing the idealized macroform of the workpiece surface, and in this way to generate a data record representing the flat-extended form of the microtopography of the workpiece surface. This data record is subjected to a digital in-phase bandpass filtering with respect to its circumferential waviness, the waviness of interest here of the chatter marks preferably being allowed through. The data record formed in this way is for its part subjected to a stationary multiple cross correlation with respect to the transverse direction. This produces an only two-dimensional data record representing the circumferential position of any chatter marks on the workpiece surface and their degree. To form a characteristic assessment number for chatter marks, the chatter-mark data record can be further evaluated, for example by two-stage averaging.
    • 本发明涉及一种在微细加工的工件表面中非接触地确定颤振标记的方法,具有以下步骤:使用非接触式操作的高分辨率表面测量方法从工件表面产生表示实际微观形态的数据记录 工件表面,从此表示表示工件表面的理想宏观形状的数据记录,并且以这种方式产生表示工件表面的微观形貌的平面延伸形式的数据记录。 该数据记录相对于其圆周波纹进行数字同相带通滤波,优选地允许颤振标记在这里感兴趣的波纹通过。 以这种方式形成的数据记录部分相对于横向方向进行固定的多重互相关。 这产生一个仅二维数据记录,表示工件表面上任何颤音标记的圆周位置及其程度。 为了形成颤振标记的特征评估数,可以进一步评估抖动标记数据记录,例如通过两级平均。