Analysis of component forces in high-speed threading of Ni-Cr-Mo steel with coated carbide inserts

被引：0

作者：

Ezugwu, EO ^{[1
]}

Okeke, CI ^{[1
]}

机构：

[1] S Bank Univ, Sch Engn Syst & Design, London SE1 0AA, England

来源：

ADVANCES IN MANUFACTURING TECHNOLOGY XII | 1998年

关键词：

coated carbides; steel; threading; component forces; wear volume;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Forces generated when threading a Ni-Cr-Mo (817M40T) steel with two grades (P20 - P30 and K05 -K20 types) of PVD coated carbide insects under various cuffing conditions were recorded and analysed Other data obtained during the threading operation include tool life at specified cutting conditions, tool wear rate, the extent of damage on threaded surfaces and hardness variation at various locations of the threaded surfaces, The test results show that lower cutting forces were generated when machining with the single layer Al2O3 coated inserts consisting of a K05-K20 substrate and incorporating a honed edge. The edge geometry as well as the composition of the substrate tend to ensure lower tool wear rate, hence longer tool life in addition to minimum damage of the threaded surface with only slight deviation from the apparent hardness of the workpiece after machining.

引用

页码：43 / 50

页数：4