[1]张大将,黄国钦.金刚石结块磨粒排布层间距实验[J].华侨大学学报(自然科学版),2017,38(3):288-293.[doi:10.11830/ISSN.1000-5013.201703002]
　ZHANG Dajiang,HUANG Guoqin.Investigation on Interlayer Spacing of Grain Layers of Diamond Segments[J].Journal of Huaqiao University(Natural Science),2017,38(3):288-293.[doi:10.11830/ISSN.1000-5013.201703002]
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金刚石结块磨粒排布层间距实验()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第38卷
期数:
2017年第3期
页码:
288-293
栏目:
出版日期:
2017-05-20

文章信息/Info

Title:
Investigation on Interlayer Spacing of Grain Layers of Diamond Segments
文章编号:
1000-5013(2017)03-0288-06
作者:
张大将;  黄国钦
华侨大学 制造工程研究院, 福建 厦门 361021
Author(s):
ZHANG Dajiang;  HUANG Guoqin
Institution of Manufacture Engineering, Huaqiao University, Xiamen 361021, China
关键词:
金刚石;  划擦;  体积破损;  划擦力;  层间距
Keywords:
diamond;  scratch;  material removal mechanism;  scratch force;  interlayer spacing
分类号:
TG580.6;TG74
DOI:
10.11830/ISSN.1000-5013.201703002
文献标志码:
A
摘要:
分析现有磨粒层间距估算方法,采用洛氏金刚石压头对中等硬度花岗石G603直线等深度划擦.通过测量相同划擦深度、不同划擦间距下划擦过程的划擦力,观察划擦后划痕的形貌,综合分析划擦过程材料去除与划擦力和划痕间距的关系,并优选磨粒排布层间距.实验结果表明:磨粒层间距L存在一临界值间距Ls.当L≤Ls时,划擦力随着L的增大而增大,磨粒间工件材料可通过干涉式整体体积破碎去除;当L>Ls时,磨削力趋于稳定,不随L增大而变化,磨粒协同干涉作用消失,磨粒间工件材料无法成片去除.
Abstract:
In this paper, based on the review of the existing methods for estimating abrasive layers interval spacing, Rockwell diamond indenters were used to scratch a medium-hardness granite G603 with equal scratch depth. During scratching, cutting force on workpiece was monitored. After scratching test, the surface of workpiece was observed. The relationship between the material removal mechanisms and scratch force was discussed in regards with different interlayer spacing. The results show that there is a critical spacing Ls. When the interlayer spacing L is less than or equal to Ls, the scratch force increases with the increase of L, and the material adjacent grains is entirely removed by volume-fractured due to the interference of inter-grains; however, when L is larger than Ls, the scratch force remained constant and the interference of inter-grains disappeared. As a result, the material can only be removed individually by each grain.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2016-12-12
通信作者: 黄国钦(1981-),男,副教授,博士,主要从事硬脆性材料高效精密加工技术、超硬材料工具制备及应用的研究.E-mail:smarthgq@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(51575198, 51105148, 51235004); 福建省自然科学基金工业引导重点资助项目(2017H0023)
更新日期/Last Update: 2017-05-20