Surface roughness analysis after laser assisted machining of hard to cut materials

Metal matrix composites and Si3N4 ceramics are very attractive materials for various industry applications due to extremely high hardness and abrasive wear resistance. However because of these features they are problematic for the conventional turning process. The machining on a classic lathe still...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2014-01, Vol.483 (1), p.12019-7
Main Authors: Przestacki, D, Jankowiak, M
Format: Article
Language:English
Subjects:
Abrasive wear
Ceramic matrix composites
Ceramics
Ceramics industry
Cubic boron nitride
Density
Diamond machining
Industrial applications
Inserts
Laser beam heating
Lasers
Machining
Metal matrix composites
Physics
Polycrystalline diamond
Process parameters
Rapid prototyping
Silicon nitride
Surface analysis (chemical)
Surface properties
Surface roughness
Three dimensional
Turning (machining)
Wear resistance
Workpieces
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Metal matrix composites and Si3N4 ceramics are very attractive materials for various industry applications due to extremely high hardness and abrasive wear resistance. However because of these features they are problematic for the conventional turning process. The machining on a classic lathe still requires special polycrystalline diamond (PCD) or cubic boron nitride (CBN) cutting inserts which are very expensive. In the paper an experimental surface roughness analysis of laser assisted machining (LAM) for two tapes of hard-to-cut materials was presented. In LAM, the surface of work piece is heated directly by a laser beam in order to facilitate, the decohesion of material. Surface analysis concentrates on the influence of laser assisted machining on the surface quality of the silicon nitride ceramic Si3N4 and metal matrix composite (MMC). The effect of the laser assisted machining was compared to the conventional machining. The machining parameters influence on surface roughness parameters was also investigated. The 3D surface topographies were measured using optical surface profiler. The analysis of power spectrum density (PSD) roughness profile were analyzed.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/483/1/012019