公开(公告)号：US5689062A

公开(公告)日：1997-11-18

申请号：US584590

申请日：1996-01-11

申请人： Ibrahim S. Jawahir ,  Xiangdong D. Fang ,  Peng X. Li ,  Ranajit Ghosh

发明人： Ibrahim S. Jawahir ,  Xiangdong D. Fang ,  Peng X. Li ,  Ranajit Ghosh

IPC分类号： G01N3/58

CPC分类号： G01N3/58 ,  Y10T82/10

摘要： A method is provided for assessing tool-wear and predicting tool-life for a selected cutting tool performing a machining operation. The method is broadly defined as including the steps of determining a tool coating effect factor and a chip-groove effect factor for the coated, grooved cutting tool. Additionally, the method includes the calculation of a tool-life for the coated, grooved cutting tool. The method takes into account selected machining operation conditions such as the characteristics of the workpiece material to be cut, the depth of cut, the feed rate, the cutting speed and the cutting tool geometry.

摘要翻译： 提供了一种用于评估对于执行加工操作的所选择的切削工具的刀具磨损和预测刀具寿命的方法。 该方法被广泛地定义为包括确定用于涂覆的带槽刀具的刀具涂覆效应因子和切屑槽效应因子的步骤。 此外，该方法包括计算涂覆的带槽刀具的刀具寿命。 该方法考虑了所选择的加工操作条件，例如要切割的工件材料的特性，切割深度，进给速率，切割速度和切削刀具几何形状。

公开(公告)号：US5941143A

公开(公告)日：1999-08-24

申请号：US728570

申请日：1996-10-10

申请人： Ibrahim S. Jawahir ,  Ranajit Ghosh ,  Marshall M. Lin

发明人： Ibrahim S. Jawahir ,  Ranajit Ghosh ,  Marshall M. Lin

IPC分类号： B23B27/14 ,  B23B1/00

CPC分类号： B23B27/143 ,  Y10T82/10 ,  Y10T82/16016

摘要： A method is provided for assessing chip breaking performance of a selected tool insert used in finish turning for automated machining operations. The method broadly includes the steps for developing a chip groove classification system based upon selected geometric parameters of commercially available tool inserts. Additionally, the method includes creating a fuzzy rule base utilizing the chip groove classification system and actual chip breaking performance data for the commercially available tool inserts. The fuzzy rule base is then used for assessing the chip breaking performance of the selected tool insert. The method takes into account selected geometric parameters, such as, land, primary rake, secondary rake, groove width, groove depth, groove height and slope of backwall.

摘要翻译： 提供了一种用于评估用于自动加工操作的精加工车削中使用的所选刀具刀片的切屑性能的方法。 该方法广泛地包括基于市售工具刀片的所选择的几何参数来开发切屑槽分级系统的步骤。 此外，该方法包括利用芯片槽分类系统和市售工具刀片的实际切屑性能数据来创建模糊规则库。 然后使用模糊规则库来评估所选刀具刀片的切屑性能。 该方法考虑了土地，初级耙，二次耙，沟槽宽度，沟槽深度，槽高度和后壁斜率等几何参数。

公开(公告)号：US5903474A

公开(公告)日：1999-05-11

申请号：US846381

申请日：1997-04-30

申请人： John P. Sadler ,  Ibrahim S. Jawahir ,  Zhongjie Da ,  Seog S. Lee

发明人： John P. Sadler ,  Ibrahim S. Jawahir ,  Zhongjie Da ,  Seog S. Lee

IPC分类号： G05B19/4093 ,  G06F19/00 ,  G06G7/66

CPC分类号： G05B19/40938 ,  Y02P90/265

摘要： A method for achieving optimum selection of machining parameters and tool inserts for finish turning operations is provided. The method allows for the simultaneous consideration of the various machining performance criteria which are highly interactive and need to be taken into consideration when defining optimum cutting conditions or selecting optimum tool inserts. The method broadly includes the steps of (1) developing a process model relating performance variables for said operation with process parameters for said operation; (2) applying multiple criteria optimization techniques to construct a utility function relating the tool life and material removal rate for optimization, using surface roughness, cutting power, and chip breakability as constraints; (3) applying non-linear programming techniques to the process model so that optimum cutting conditions may be selected for given machining performance requirements. This method may also take into account the progressive wear state of the tool being used.

摘要翻译： 提供了一种用于实现最佳选择加工参数的方法和用于精加工操作的刀具刀片。 该方法允许同时考虑高度交互的各种加工性能标准，并且在定义最佳切割条件或选择最佳刀具刀片时需要考虑。 该方法广泛地包括以下步骤：（1）开发与所述操作的性能变量相关联的过程模型与所述操作的过程参数; （2）应用多标准优化技术，构建了一个有用的功能，将刀具寿命和材料去除率进行优化，使用表面粗糙度，切割力和切屑断裂性作为约束条件; （3）将非线性规划技术应用于过程模型，以便为给定的加工性能要求选择最佳切削条件。 该方法还可以考虑所使用的工具的渐进磨损状态。

公开(公告)号：US5801963A

公开(公告)日：1998-09-01

申请号：US744907

申请日：1996-11-08

申请人： John P. Sadler ,  Ibrahim S. Jawahir ,  Zhongjie Da ,  Seog S. Lee

发明人： John P. Sadler ,  Ibrahim S. Jawahir ,  Zhongjie Da ,  Seog S. Lee

IPC分类号： G05B19/4093 ,  G06F19/00 ,  G06G7/66

CPC分类号： G05B19/40938 ,  Y02P90/265

摘要： A computer implemented method for achieving optimum selection of machining parameters and tool inserts for finish turning operations is provided. The computer implemented method allows for the simultaneous consideration of the various machining performance criteria which are highly interactive and need to be taken into consideration when defining optimum cutting conditions or selecting optimum tool inserts for particular cutting conditions. The computer implemented method broadly includes the steps of (1) developing a process model for interrelating performance variables and process parameters for finish turning operations; (2) selecting one of the performance variables for optimization while maintaining the remaining performance variables and process parameters as constraints on the optimization process; and (3) applying non-linear programming techniques to the process model in order that optimum cutting conditions may be determined for a given tool insert or an optimum tool insert may be selected for given machining performance requirements.

摘要翻译： 提供了一种用于实现最佳选择加工参数的计算机实现的方法和用于精加工操作的刀具刀片。 计算机实现的方法允许同时考虑高度交互的各种加工性能标准，并且在定义最佳切割条件或为特定切割条件选择最佳刀具刀片时需要考虑。 计算机实现的方法广泛地包括以下步骤：（1）开发用于完成车削操作的性能变量和过程参数相互关联的过程模型; （2）选择其中一个性能变量进行优化，同时将剩余的性能变量和过程参数作为优化过程的约束; 以及（3）将非线性规划技术应用于过程模型，以便可以针对给定的刀具刀片确定最佳切削条件，或者可以针对给定的加工性能要求选择最佳刀具刀片。