Real-time acoustic emission monitoring for surface damage in hard machining

Real-time acoustic emission monitoring for surface damage in hard machining

Hard machining is a competitive finishing process with substantial benefits in manufacturing precision mechanical components. However, hard machining applications have been remaining slow due to the existence of surface damage such as white layer. The process-induced white layer may have detrimental...

Full description

Saved in:
Bibliographic Details
Published in:International journal of machine tools & manufacture Vol. 45; no. 14; pp. 1622 - 1627
Main Authors: Guo, Y.B., Ammula, S.C.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01-11-2005
Elsevier
Subjects:
Acoustic emission
Acoustical measurements and instrumentation
Acoustics
Applied sciences
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
Hard machining
Mechanical engineering. Machine design
Monitoring
Physics
Solid mechanics
Structural and continuum mechanics
Surface integrity
Acoustic emission
Surface integrity
Hard machining
Monitoring
Acoustic emission testing
Fatigue life
Correlation
White layer
Acoustic measurement
Mechanical component
Precision engineering
Surface layer
Structure integrity
Machining
Durability
Experimental study
Real time system
Hard material
Tool wear
Root mean square value
Surface conditions
Finishing
Damaging
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Hard machining is a competitive finishing process with substantial benefits in manufacturing precision mechanical components. However, hard machining applications have been remaining slow due to the existence of surface damage such as white layer. The process-induced white layer may have detrimental effect on component life. However, the white layer on a machined component surface could be found only after machining. This post-process scenario imposes a great potential danger to subsequent product performance such as fatigue life. Therefore, real-time monitoring of white layer formation during hard machining has significant economical and durability importance. In this study, a real-time acoustic emission (AE) monitoring system was developed to investigate the sensitivity of a broad AE signal parameters including RMS, frequency, amplitude, and count rate to white layer and corresponding surface finish and tool wear. The experimental results show that AE RMS, frequency, and count rate have good correlation with white layer formation and, thus, may be used to monitor surface integrity factors. The findings provide fundamental information to develop practical on-line AE monitoring system for surface integrity in hard machining.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0890-6955
1879-2170
DOI:10.1016/j.ijmachtools.2005.02.007