钎焊金刚石线锯的制备方法及性能
Preparation Methods and Performance of Brazed Diamond Wire Saws
摘 要
选用直径为0.2 mm的65Mn弹簧钢丝作为线锯基体,采用真空炉中钎焊(以镍基合金粉为钎料)和管式炉中氩气保护钎焊(以银铜钛合金粉为钎料)的方法制备金刚石线锯,对比研究了两种线锯的表面形貌、基体显微组织、力学性能和疲劳性能.结果表明:采用银铜钛合金粉为钎料制备的金刚石线锯性能更优,其抗拉强度为1 132 MPa,伸长率为3.27%,疲劳寿命为12 h,基体组织为回火索氏体.
线锯
钎料
性能
brazing diamond
wire saw
solder
performance
Abstract
Spring steel 65Mn wire with the diameter of 0.2 mm was selected as the wire saw matrix.The brazed diamond wire saws were prepared by brazing process in a vacuum furnace using nickel-based alloy powder solder and in a tube furnace using Ag-Cu-Ti alloy powder solder.Their surface morphology,matrix microstructure, mechanical properties and fatigue properties were investigated comparatively.The results indicate that the diamond wire saw prepared using Ag-Cu-Ti alloy powder as solder had better properties,whose tensile strength was 1 132 MPa,elongation was 3.27%, fatigue life was 12 h,and matrix microstructure was tempering sorbite.
中图分类号 TG44
所属栏目 材料性能及其应用
基金项目 国家自然科学基金青年基金资助项目(51005026);安徽省优秀青年人才项目(2011SQRL163)
收稿日期 2014/2/24
修改稿日期 2014/12/18
网络出版日期
作者单位点击查看
备注张国青(1977-),男,安徽桐城人,副教授,博士研究生.
引用该论文: ZHANG Guo-qing,HUANG Hui,XU Xi-peng. Preparation Methods and Performance of Brazed Diamond Wire Saws[J]. Materials for mechancial engineering, 2015, 39(5): 77～80
张国青,黄辉,徐西鹏. 钎焊金刚石线锯的制备方法及性能[J]. 机械工程材料, 2015, 39(5): 77～80
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【7】马伯江,徐鸿钧,傅玉灿,等.两种钎焊金刚石工具微观结构的对比分析[J].机械工程材料,2005,29(7):10-13.
【8】杨志波,徐九华,傅玉灿,等.钢基体上镍基钎料激光钎焊金刚石磨粒的界面结构[J].机械工程材料,2007,31(5):17-20.
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【13】吴海洋.固结金刚石线锯的复合电镀工艺研究[D].大连:大连理工大学,2006:62-63.
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