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【答案】应助回帖
★ ★ ★ ★ ★
感谢参与，应助指数 +1
lizizhang86: 金币+5, ★★★★★最佳答案 2015-11-22 13:12:59
lazy锦溪: LS-EPI+1, 感谢应助！ 2015-11-22 14:59:52
EI检索
Accession number:
20154301433290
Articles not published yet, but available online Article in Press Information about Article in Press
Title: Study on chip failure mechanism in high-speed cutting process with electronic theory
Authors: Li, Jin-quan1 Email author li_jinquan@163.com; Zhang, Rui1; Guo, Hai-lin1; Zhang, Zhi-jun1
Author affiliation: 1 School of Mechanical Engineering, Shenyang Ligong University, No.6 Nanping Center Road, Hunnan New District, Shenyang, China
Corresponding author: Li, Jin-quan
Source title: International Journal of Advanced Manufacturing Technology
Abbreviated source title: Int J Adv Manuf Technol
Issue date: September 26, 2015
Publication year: 2015
Language: English
ISSN: 02683768
E-ISSN: 14333015
CODEN: IJATEA
Document type: Article in Press
Publisher: Springer-Verlag London Ltd
Abstract: In this paper, the microscopic mechanism of 080A15 and 30CrMnMo steel chip failure modes has been studied at the level of valence electron structure (VES) based on the empirical electron theory (EET) of solids and molecules. Studies show the bonding ability and the lattice electron density are related to the chip failure form. If the bonding ability is weak and the lattice electron density is high, the chip is more prone to ductile fracture. Conversely, the chip is more prone to adiabatic shear failure to form the serrated chip divided uniformly by adiabatic shear bands (ASBs). For 080A15 steel, the bonding force between atoms is weak, and the lattice electron density is very high. It is difficult to produce the thermal-mechanical instability. Thus, the chip was formed by ductile fracture. For 30CrMnMo steel, the total bonding ability of each structural unit of carbon and alloy elements is stronger, and the lattice electron density of each structural unit is weaker, the temperature can rise instantaneously to a very high level to form the serrated chip with the adiabatic shear failure. The results of this research provide useful insights on material design and selection in high-speed cutting by studying the specific alloy elements on the influence of chip failure mechanism at the VES level. © 2015 Springer-Verlag London
Page count: 8
Main heading: Failure (mechanical)
Controlled terms: Alloy steel - Carbon - Carrier concentration - Ductile fracture - Electron density measurement - Electrons - Fracture - Shear bands
Uncontrolled terms: Adiabatic shear band - Adiabatic shear failure - Electron structures - Empirical electron theory - High speed cutting - Mechanical instabilities - Serrated chip - Valence electron structure
Classification code: 531.1 Metallurgy - 701.1 Electricity: Basic Concepts and Phenomena - 804 Chemical Products Generally - 951 Materials Science
DOI: 10.1007/s00170-015-7852-1
Database: Compendex
Compilation and indexing terms, © 2015 Elsevier Inc. |
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