SURFACE PROPERTIES OF THE MACHINED WORKPIECE FOR HELICAL MILLS

被引：47

作者：

Bachrathy, D. ^{[1
]}

Insperger, T. ^{[1
]}

Stepan, G. ^{[1
]}

机构：

[1] Budapest Univ Technol & Econ, Dept Appl Mech, H-1117 Budapest, Hungary

来源：

MACHINING SCIENCE AND TECHNOLOGY | 2009年 / 13卷 / 02期

关键词：

appropriate axial immersion; cutting force; helical mills; material removal rate; stability; surface location error; LOCATION ERROR; FORCE COEFFICIENTS; CUTTING FORCE; GENERATION; PREDICTION; STABILITY;

D O I：

10.1080/10910340903012167

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stability and surface errors are investigated numerically for milling operations with a helical tool. A detailed two degree of freedom mechanical model is derived that includes both surface regeneration and the helical teeth of the tool. The governing delay-differential equation is analyzed by the semi-discretization method. The surface errors are predicted based on the (stable) forced motion of the tool. New surface error parameters were introduced to characterize the properties of the spatial machined surface. The errors were calculated numerically for a given machine tool and workpiece for different axial depths of cut and spindle speeds. It is shown that both good surface properties and large material removal rate can be achieved by appropriate axial immersion in case of helical fluted tool. This phenomenon was proved analytically by means of the Fourier transformation of the cutting force.

引用

页码：227 / 245

页数：19

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