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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

粉末表面涂层陶瓷的硬质合金刀具材料

陈元春1; 黄传真1; 艾兴1; 王宝友2   

  1. 1. 山东工业大学机械工程学院, 济南 250061; 2. 潍坊高等专科学校机械工程系, 潍坊 261014
  • 收稿日期:1999-10-22 修回日期:1999-12-09 出版日期:2000-10-20 网络出版日期:2000-10-20

Advanced Cutting Tool Material by Hot-Pressing Ceramic Coated Carbide Powders

CHEN Yuan-Chun1; HUANG Chuan-Zhen1; AI Xing1; WANG Ban-You 2   

  1. 1.Department of Mechanical Engineering; Shandong University of Technology; Jinan 250061; China; 2.Department of Mechanical Engineering; Weifang Academic School; Weifang 261014; China
  • Received:1999-10-22 Revised:1999-12-09 Published:2000-10-20 Online:2000-10-20

PDF (PC)

1123

被引次数

9

摘要： 使用溶胶－凝胶法在硬质合金粉末表面涂覆了一层氧化铝陶瓷，涂层粉末经热压烧结后，制得一种新型的涂层刀具材料．这种刀具材料的耐磨性与陶瓷材料接近，并且具有较高的强度和韧性，在切削高硬度材料时表现出良好性能，具有广阔的应用前景．

关键词: 粉末涂层, 涂层刀具, 溶胶-凝胶法, 硬质合金

Abstract: Carbide powders were coated with very thin alumina films by the sol-gel process. The coated powders were then
hot-pressed as a novel cutting tool material. This material possessed relatively high hardness, which led to similar wear resistant ability with ceramics. At
the same time, its bending strength and toughness were higher than that of the ceramic cutting tool materials with similar composition. As a result, these tools show
good performance in cutting high-hardness materials. SEM and TEM photographs of coated powders and fracture surface were presented as an aid to illustrate the
strengthen mechanism.

Key words: coated powder, sol-gel process, coated cutting tools, cemented carbides

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