Experimental investigation of surface integrity in finish dry hard turning of hardened tool steel at different hardness levels

doi:10.1007/s00170-014-6484-1

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	Experimental investigation of surface integrity in finish dry hard turning of hardened tool steel at different hardness levels
	Tang, Linhu 1,2,2; Gao, Chengxiu 1,2,2; Huang, Jianlong 3; Shen, Hao 3; Lin, Xiaojun 1,2,2
刊名	International Journal of Advanced Manufacturing Technology
	2015-04-01
卷号	77 期号:9-12 页码:1655-1669
关键词	Cold welding Cubic boron nitride Cutting Cutting tools Hardening Hardness III-V semiconductors Morphology Plastic deformation Surface morphology Tool steel Experimental investigations FDHT Ploughing effects Polycrystalline cubic boron nitride Sub-surface damage Sub-surface materials Surface integrity Workpiece
ISSN号	02683768
DOI	10.1007/s00170-014-6484-1
英文摘要	In this paper, the influences of cutting speed, depth of cut, feed, workpiece hardness (51, 55, 58, 62, and 65 ± 1 HRC), and nose radius on surface integrity in finish dry hard turning (FDHT) of the hardened tool steel AISI D2 by utilizing the polycrystalline cubic boron nitride (PCBN) inserts were experimentally investigated. Experimental results showed that the ploughing effect, serious squeeze, and elastic deformation have more significant on the surface roughness than those black fusion welding materials and side flows, and the surface roughness values are in the range of 0.34–0.86 μm between 150- and 301-m/min cutting speeds and totally attains a surface finish of grinding. The surface roughness is not very sensitive to the depth of cut in the range from 0.10 to 0.25 mm. The "residual cutting" materials, material plastic deformation, and even cohesion in the machined surface and cold welding effect do occur and hence influence on the surface integrity. The tiny grooves, severe plastic flow, and extensive material flows at lower feeds have significant influence on the surface integrity. The subsurface damages produced by the turning process also do occur and become severer at the larger feeds due to the localized stretch, plastic deformation, and even dilacerations of subsurface material induced by the friction from the tool flank face. The thermal softening, serious material side flows, and squeezing have significant effect on surface integrity when FDHT of the hardened tool steel AISI D2 at different hardness levels. And the heat effect is greater than the geometry effect as the nose radius attains a certain value. © 2014, Springer-Verlag London.
语种	英语
出版者	Springer London
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113378]
专题	机电工程学院
作者单位	1.Provincial Key Laboratory for Green Cutting Technology and Application of Gansu Province (University), Lanzhou Institute of Technology, Lanzhou, China; 2.College of Mechano-Electronic, Lanzhou Institute of Technology, No. 1 Gongjiaping East Road, Lanzhou; Gansu Province; 730050, China; 3.College of Mechano-Electronic, Lanzhou University of Technology, Lanzhou; Gansu Province; 730050, China
推荐引用方式 GB/T 7714	Tang, Linhu,Gao, Chengxiu,Huang, Jianlong,et al. Experimental investigation of surface integrity in finish dry hard turning of hardened tool steel at different hardness levels[J]. International Journal of Advanced Manufacturing Technology,2015,77(9-12):1655-1669.
APA	Tang, Linhu,Gao, Chengxiu,Huang, Jianlong,Shen, Hao,&Lin, Xiaojun.(2015).Experimental investigation of surface integrity in finish dry hard turning of hardened tool steel at different hardness levels.International Journal of Advanced Manufacturing Technology,77(9-12),1655-1669.
MLA	Tang, Linhu,et al."Experimental investigation of surface integrity in finish dry hard turning of hardened tool steel at different hardness levels".International Journal of Advanced Manufacturing Technology 77.9-12(2015):1655-1669.