Characterization and Analysis of Inconel 718 Alloy Ground at Different Speeds

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外文摘要：Inconel 718(IN718)alloy is widely applied to fabricate high temperature resistant or corrosion resistant parts due to its excellent mechanical performance.However,the machining of IN718 alloy is difficult as it may cause serious tool wear and poor surface quality(SQ)of the workpiece.In this work,grinding experiments on IN718 alloy at different speeds were conducted by using a CBN grinding wheel.The relationship between grinding speed,SQ and subsurface damage(SSD)was well studied.With increasing grinding speed,surface roughness decreased,and SQ was greatly improved.Meanwhile,the microhardness of the grinding surface declined as the grinding speed increased.The SSD depth was almost unchanged when the grinding speed was lower than 15 m/s,then it decreased with higher grind-ing speeds.It was attributed to the mechanical-thermal synergistic effect in the grinding process.The results indi-cated that increasing grinding speed can effectively improve the SQ and reduce the SSD of IN718 alloy.The conclu-sion in the work may also provide insight into processing other hard-to-machining materials.

外文关键词：

Surface integrityGrinding speedIN718 alloyPrecision machiningCBN grinding wheel

作者：

Hao Liu、Huili Han、Qinghong Jiang、Minglin He、Bi Zhang

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作者单位：

Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen 518055,China

Department of Mechanical Engineering,Hong Kong Polytechnic University,Hong Kong,China

基金：

Shenzhen Municipal Science and Technology Innovation Commission of ChinaShenzhen Municipal Science and Technology Innovation Commission of ChinaShenzhen Municipal Science and Technology Innovation Commission of China

项目编号：

KQTD20190929172505711JSGG20210420091802007GJHZ20210705141807023

出版年：

2024

DOI：

10.1186/s10033-024-01017-5

中国机械工程学报

中国机械工程学会

中国机械工程学报

CSTPCD

影响因子：0.765

ISSN：1000-9345

年,卷(期)：2024.37(2)