Prediction of milling force coefficients from orthogonal cutting data
Prediction of milling force coefficients from orthogonal cutting data
复制标题
DOI：
10.1115/1.2831014
复制
发表时间：
1996-05-01
影响因子：
4
通讯作者：
Armarego, EJA
中科院分区：
文献类型：
--
作者：
Budak, E;Altintas, Y;Armarego, EJA
简要介绍和比较了用于预测铣削作业力的机械式和统一的切削力方法，指出机械式方法取决于由每个刀具几何形状的铣削试验确定的切削力系数。相比之下，切割方法的统一力学依赖于实验确定的正交切割数据库(即剪切角、摩擦系数和剪应力)，其中包括刀具几何变量和基于通用斜切削分析的铣削模型。结果表明，所有力分量的铣削力系数和刀具几何设计都可以从一个正交切削数据库和通用的斜切削分析中预测出来，以用于预测的机械铣削模型。这种方法不需要对每个铣刀的几何形状进行实验校准，即可采用机械方法进行力预测，并可应用于更复杂的刀具设计。通过对Ti6Al4V钛合金的各种加工条件、偏心和跳动、自由切削力和刀具几何参数的实验验证，证明了该方法是可行的。
The mechanistic and unified mechanics of cutting approaches to the prediction of forces in milling operations are briefly described and compared The mechanistic approach is shown to depend on milling force coefficients determined from milling tests for each cutter geometry. By contrast the unified mechanics of cutting approach relies on an experimentally determined orthogonal cutting data base (i.e., shear angle, friction coefficient and shear stress), incorporating the tool geometrical variables, and milling models based on a generic oblique cutting analysis. It is shown that the milling force coefficients for all force components and cutter geometrical designs can be predicted from an orthogonal cutting data base and the generic oblique cutting analysis for use in the predictive mechanistic milling models. This method eliminates the need for the experimental calibration of each milling cutter geometry for the mechanistic approach to force prediction and can be applied to more complex cutter designs. This method of milling force coefficient prediction has been experimentally verified when milling Ti6Al4V titanium alloy for a range of chattel; eccentricity and run-out free cutting conditions and cutter geometrical specifications.