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作者:

Yan, Yinzhou (Yan, Yinzhou.) (学者:闫胤洲) | Li, Lin (Li, Lin.) | See, Tian Long (See, Tian Long.) | Ji, Lingfei (Ji, Lingfei.) (学者:季凌飞) | Jiang, Yijian (Jiang, Yijian.) (学者:蒋毅坚)

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EI Scopus SCIE

摘要:

A laser controlled fracture peeling technique is demonstrated to smooth the Al2O3 ceramic surface without thermal damages. It was found that a chip can be separated and curled from the ceramic surface during a focused CO2 continuous wave (CW) laser dual-scanning. The thickness of the curled chip is similar to 50 mu m and the formed subsurface roughness (R-a approximate to 2 mu m) is close to the surface machined by mechanical breaking (R-a = 1.84 mu m). The chip formation is attributed to the controlled fracture by the residual tensile stress in the recast layer, whereas the chip curling only occurs when the melting depth is shallower than the position of lateral cracks. The peeling technique can be applied to polish the cut surface of laser fusion cutting in ceramics. The polished cut surface (R-a = 2.18 mu m) is free from recast, crack and heat effects. The microstructure is similar to the base material. The material removal rate during polishing is up to 0.125 mm(3)/s. (C) 2013 Elsevier Ltd. All rights reserved.

关键词:

Alumina Controlled fracture Finite element modelling Peeling Polishing

作者机构:

  • [ 1 ] [Yan, Yinzhou]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Ji, Lingfei]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Jiang, Yijian]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Yan, Yinzhou]Univ Manchester, Sch Mech Aerosp & Civil Engn, Laser Proc Res Ctr, Manchester M13 9PL, Lancs, England
  • [ 5 ] [Li, Lin]Univ Manchester, Sch Mech Aerosp & Civil Engn, Laser Proc Res Ctr, Manchester M13 9PL, Lancs, England
  • [ 6 ] [See, Tian Long]Univ Manchester, Sch Mat, Ctr Corros & Protect, Manchester M13 9PL, Lancs, England

通讯作者信息:

  • [Li, Lin]Univ Manchester, Sch Mech Aerosp & Civil Engn, Laser Proc Res Ctr, Manchester M13 9PL, Lancs, England

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来源 :

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

ISSN: 0955-2219

年份: 2013

期: 10

卷: 33

页码: 1893-1905

5 . 7 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:263

JCR分区:1

中科院分区:1

被引次数:

WoS核心集被引频次: 7

SCOPUS被引频次: 5

ESI高被引论文在榜: 0 展开所有

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