Deformation behaviour of different types of inclusion during chip formation in turning of quenched and tempered steels

Authors: Nordgren, A.; Melander, A.

Source: Materials Science and Technology, Volume 5, Number 9, September 1989 , pp. 940-951(12)

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Abstract:

The deformation behaviour of different types of inclusion in the secondary shear zone of the chip and at the tool/chip interface has been studied during turning of quenched and tempered steel SS 2541 (En 24, SAE 4337) using coated carbide inserts. Inclusion types typical for both untreated and calcium treated steel were analysed. The analysis of inclusions in the secondary shear zone was based on semiautomatic image analysis in a scanning electron microscope. The influence on tool wear and on the formation of protective layers on the tool surface are discussed for the different types of inclusion. Examples are given of worn cutting inserts after machining steels of different inclusion content.

MST/937

Document Type: Research Article

Publication date: 1989-09-01

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