Wear mechanism when machining compacted graphite iron

被引：82

作者：

Abele, E ^{[1
]}

Sahm, A ^{[1
]}

Schulz, H ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Prod Management Technol & Machine Tools PTW, Darmstadt, Germany

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2002年 / 51卷 / 01期

关键词：

cast iron; machinability; tool wear;

D O I：

10.1016/S0007-8506(07)61464-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The industrial application of compacted graphite iron in the automotive industry is taking a rather long time due to its uneconomic machinability, because of a significant decrease in tool life. After six years of holistic research of the PTW in cooperation with foundries, manufactures and material scientists, the wear mechanism was understood and clarified: Sulphur in the microstructure of compacted graphite iron has direct influence on the formation of a manganese-sulphur layer on the cutting edge. For machining gray cast iron this layer protects the cutting edge against abrasive wear. Therefore the design of cutting tools for the machining of CGI must consider the absence of manganese-sulphur layer.

引用

页码：53 / 56

页数：4

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