Investigations in high speed blanking: cutting forces and microscopic observations

Investigations of Process Damping Forces in Metal Cutting

Using finite element software developed for metal cutting by Third Wave Systems we investigate the forces involved in chatter, a self-sustained oscillation of the cutting tool. The phenomena is decomposed into a vibrating tool cutting a flat surface work piece, and motionless tool cutting a work piece with a wavy surface. While cutting the wavy surface, the shearplane was seen to oscillate in a...

Investigation of Cutting Forces during Machining Process by High Speed Turning

This paper presents the obtained mathematical models of cutting forces during machining process by high speed turning as a function of processing parameters v, f, a and re. The machining process by turning is performed on NC lathe using ceramic cutting tool inserts and the workpiece material is C 1630 (DIN C 55). Processing parameters are varied in range between v =300 and 700 m/min , f =0,16-0...

Investigation of Cutting Forces Superalloy Inconel 718

Since the cutting tools used in machining process of super alloys are subjected to high cutting forces, accordingly tools life is reduced, therefore improvement in alloys machining and reducing cutting forces to achieve longer tools life is an essential necessity. In this research, the effect of changes in feed rate on cutting forces in machining process of nickel based super alloys is investig...

Detection and Blanking of Gsm Interference in Radio-astronomical Observations

Radio-astronomical observations are increasingly disturbed by man-made communication signals, satellite and broadcast services. In particular, the GSM band is a highly saturated domain, full with interferers which are much stronger than radio astronomical signals. In this paper we propose a strategy to reduce this interference using its non-stationary nature. We describe a multichannel interfer...

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