中文

CBN磨粒Cu-Sn-Ti合金的预连接及电阻焊工艺

Hits:

  • Key Words:CBN;有序排布;Cu-Sn-Ti合金;预连接;电阻焊

  • Abstract:利用Cu-Sn-Ti合金预连接CBN磨粒,并将其用电阻焊焊接在基体上,为有序排布CBN工具磨粒的精确固定和工具使用后损毁磨粒焊植修复做先期探索。通过差示扫描量热法对Cu-Sn-Ti合金热分析;使用扫描电镜分析预连接及电阻焊后磨粒的微观形貌;用拉曼光谱仪分析电阻焊试样及钎焊试样磨粒的应力;通过磨削试验研究电阻焊CBN磨粒的磨削性能。研究表明,在950℃保温120 s的预连接工艺下,CBN与Cu-Sn-Ti合金产生化学冶金结合。电阻焊后预连接层与基体预熔涂层熔合,焊缝未见裂纹、气孔、未熔合等缺陷,CBN磨粒仍然棱角分明。在距表面600μm处,钎焊CBN磨粒所受压应力σ=0.43 GPa,电阻焊CBN磨粒压应力为0.69 GPa,较大的压应力使电阻焊CBN磨粒受到更强的把持力。磨削试验显示,电阻焊CBN磨粒的稳定性及磨削效率优于钎焊CBN磨粒。

  • Volume:No.586

  • Issue:04

  • Translation or Not:no


Laoshan Campus-99 Songling Road, Qingdao City, Shandong Province
Sifang Campus-No.53 Zhengzhou Road, Qingdao City, Shandong Province
Sino-German International Cooperation Zone (Sino-German Campus)-No. 3698 Tuanjie Road, West Coast New District, Qingdao City, Shandong Province
Gaomi Campus-No. 1 Xingtan West Street, Gaomi City, Shandong Province
Jinan Campus-No. 80 Wenhua East Road, Jinan City, Shandong Province ©2015 Qingdao University of Science and Technology
Administrator email: master@qust.e
Click:
  MOBILE Version

The Last Update Time:..