NON DESTRUCTIVE EVALUATION OF SURFACES AFTER HARD MILLING

Abstract

Grinding operations are sometimes replaced with hard turning or milling cycles. Mechanism of chip separation during grinding and the corresponding surface integrity remarkably differs from hard turning or milling. For this reason, this paper deals with application of Barkhausen noise for evaluation of surface anisotropy after hard milling. Experiments were carried out on hardened bearing steel 100CrMn6. The analysis contains comparison of RMS values for the different hardness and tool wear after hard milling and also discusses the specific mechanism of BW motion in the case of cyclic magnetization. The paper also discusses significance of surface state after hard milling from the point of view of the consecutive technological operations.

Recommended articles

HIGH PRESSURE HYDRAULICS IN DIESEL ENGINE FUEL SYSTEM

VACLAV VONDRACEK, ZDENEK TROJAN, MIROSLAV MALY
Keywords: fuel distribution | injection system | injector

EXPERIMENTAL TESTING OF STEEL WIRE ROPES

MARIANNA TOMASKOVA
Keywords: steel wire rope | mechanical tests | competence coefficient

ANALYSIS OF MATERIAL REMOVAL ON RADIAL COMPRESSOR WHEEL OF AIRCRAFT ENGINE AFTER FINISHING PRODUCTION OPERATIONS USING CMM

PETR MIKES, LIBOR BERANEK, ZDENEK PITRMUC
Keywords: coordinate measuring machine | compressor wheel | finishing technology

RESIDUAL STRESS WHEN FACE MILLING ALUMINIUM ALLOYS

JOSEF SEDLAK, PETR OSICKA, JOSEF CHLADIL, ALES JAROS, ALES POLZER
Keywords: residual stress | internal tension | face milling | Aluminium Alloys | hole-drilling method