Microstructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machining

The formation and development of serrated chip morphology and adiabatic shear bands (ASBs) and the microstructure of fracture surfaces in the serrated chips during hard machining of hardened alloy steel are observed, the mechanism of adiabatic shear fracture is analyzed. The observation and analysis...

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Main Authors: Chunzheng DUAN, Minjie WANG
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2014-11-01
Series:Journal of Advanced Mechanical Design, Systems, and Manufacturing
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jamdsm/8/6/8_2014jamdsm0074/_pdf/-char/en
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author Chunzheng DUAN
Minjie WANG
author_facet Chunzheng DUAN
Minjie WANG
author_sort Chunzheng DUAN
collection DOAJ
description The formation and development of serrated chip morphology and adiabatic shear bands (ASBs) and the microstructure of fracture surfaces in the serrated chips during hard machining of hardened alloy steel are observed, the mechanism of adiabatic shear fracture is analyzed. The observation and analysis indicate that the cutting speed has significant influence on the transformation of chip morphology and microscopic morphology of ASBs, the material properties can significantly influence on microstructural pattern of fracture surfaces and fracture mechanism during serrated chip formation. The ductile damage fracture induced by adiabatic shear has decisive effect on serrated chip formation, a microcosmic model of adiabatic shear ductile fracture during hard machining including nucleation, growth, coalescence and fracture of microvoids within ASB is proposed.
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spelling doaj.art-d430539e82164feea370a7b256a2a9632022-12-22T03:38:55ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542014-11-0186JAMDSM0074JAMDSM007410.1299/jamdsm.2014jamdsm0074jamdsmMicrostructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machiningChunzheng DUAN0Minjie WANG1School of Mechanical Engineering, Dalian University of TechnologySchool of Mechanical Engineering, Dalian University of TechnologyThe formation and development of serrated chip morphology and adiabatic shear bands (ASBs) and the microstructure of fracture surfaces in the serrated chips during hard machining of hardened alloy steel are observed, the mechanism of adiabatic shear fracture is analyzed. The observation and analysis indicate that the cutting speed has significant influence on the transformation of chip morphology and microscopic morphology of ASBs, the material properties can significantly influence on microstructural pattern of fracture surfaces and fracture mechanism during serrated chip formation. The ductile damage fracture induced by adiabatic shear has decisive effect on serrated chip formation, a microcosmic model of adiabatic shear ductile fracture during hard machining including nucleation, growth, coalescence and fracture of microvoids within ASB is proposed.https://www.jstage.jst.go.jp/article/jamdsm/8/6/8_2014jamdsm0074/_pdf/-char/enhard machiningadiabatic shear fracturemicrostructureserrated chipadiabatic shear band
spellingShingle Chunzheng DUAN
Minjie WANG
Microstructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machining
Journal of Advanced Mechanical Design, Systems, and Manufacturing
hard machining
adiabatic shear fracture
microstructure
serrated chip
adiabatic shear band
title Microstructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machining
title_full Microstructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machining
title_fullStr Microstructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machining
title_full_unstemmed Microstructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machining
title_short Microstructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machining
title_sort microstructure and mechanism of adiabatic shear fracture during serrated chip formation of hard machining
topic hard machining
adiabatic shear fracture
microstructure
serrated chip
adiabatic shear band
url https://www.jstage.jst.go.jp/article/jamdsm/8/6/8_2014jamdsm0074/_pdf/-char/en
work_keys_str_mv AT chunzhengduan microstructureandmechanismofadiabaticshearfractureduringserratedchipformationofhardmachining
AT minjiewang microstructureandmechanismofadiabaticshearfractureduringserratedchipformationofhardmachining