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| 钎焊金刚石磨粒剪切强度评价研究 | |
| 引用本文： | 詹友基,贾敏忠,张国青,许明三.钎焊金刚石磨粒剪切强度评价研究[J].福建工程学院学报,2007,5(3):205-207. |
| 作者姓名： | 詹友基 贾敏忠 张国青 许明三 |
| 作者单位： | 1. 福建工程学院机电及自动化工程系,福建,福州,350014;华侨大学石材加工研究福建省高校重点实验室,福建,泉州,362021 2. 福建工程学院机电及自动化工程系,福建,福州,350014 3. 华侨大学石材加工研究福建省高校重点实验室,福建,泉州,362021 |
| 摘 要： | 钎料与金刚石磨粒结合强度的测定与评价是钎焊金刚石工具研究与应用中的关键性问题.文章提出一种新的测试方法,通过剪切试验测试单颗金刚石磨粒的剪切破坏力大小,结合对破坏磨粒的微观分析,对结合强度进行评价.结果发现钎焊金刚石磨粒在受剪切力时,一般有2种破坏形式,分别为脱落、折断.钎焊时间和真空度对结合强度影响明显.在制备钎焊金刚石工具时,应该选用高级别的金刚石磨粒,高真空环境下进行高频感应钎焊金刚石磨粒较为有利. |
| 关 键 词： | 金刚石 钎焊强度 钎焊时间 真空度 |
| 文章编号： | 1672-4348（2007）03-0205-03 |
| 修稿时间： | 2007-03-21 |
Evaluation study of the shearing intensity of brazed diamond grits |
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| Zhan Yuuji,Jia Minzhong,Zhang Guoqing,Xu Mingsan.Evaluation study of the shearing intensity of brazed diamond grits[J].Journal of Fujian University of Technology,2007,5(3):205-207. | |
| Authors: | Zhan Yuuji Jia Minzhong Zhang Guoqing Xu Mingsan |
| Institution: | 1. Electmmechanical and Automation Engineering Department, Fujian University of Technology, Fuzhou 350014, China; 2. Provincial Key Lab of Stone Machining, Huaqiao University, Quanzhou 362021, China |
| Abstract: | Evaluating and measuring the interfacial bonding strength between filling alloy and diamond grits is a key issue in the study and application of brazed diamond tools.A new method for testing the bonding strength is proposed.The shearing load of single diamond grit brazed under different brazing conditions is measured by shearing experiment.Microscopic observation of the broken grits shows that the diamond grits are destructed in two modes when sheared: pull-out and fracture.It is evident that the brazing time and vacuity affect bonding strength.It is proposed that when preparing brazed diamond tools advanced diamond grits be used and diamond grits be brazed under high vacuity. |
| Keywords: | diamond brazed strength brazing time vacuity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |