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Grinding performance and wear of metal bond super-abrasive tools in grinding of Zr-based bulk metallic glass
International Journal of Refractory Metals & Hard Materials ( IF 3.6 ) Pub Date : 2021-02-18 , DOI: 10.1016/j.ijrmhm.2021.105501
Feng-lin Zhang , Gen-wei Huang , Jia-meng Liu , Zhi-jun Du , Shi-xiong Wu , Cheng-yong Wang

Bulk metallic glass (BMG) is the new class of promising materials with exceptional mechanical properties and corrosion resistance. BMG parts need grinding to obtain high dimension precision and surface finish. In present research work, Zr-BMG was ground by mono-layer metal bond super-abrasive grinding tools with different abrasive (diamond, CBN) and bond (Ni electroplated, Nisingle bondCr and Cu-Sn-Ti brazed). The grinding force, surface roughness, surface crystallization status, wear of tools in grinding of BMG with different tools were examined and compared. The specific grinding energy of Zr-BMG was also compared with SS304 steel. The results showed that diamond tool produces lower grinding forces than that of CBN. Ni electroplated tools own lower grinding force than that of brazed ones. Zr based BMG produce higher grinding force and specific grinding energy than SS304 steel. Ni electroplated tools obtain lower surface roughness of Zr-BMG than that of brazed ones. A severe adhesion of Zr-BMG dominates the wear of super-abrasive grinding tools. Ni-electroplated tools produce less adhesion than the brazed tools.



中文翻译:

Zr基块状金属玻璃磨削中金属结合剂超磨具的磨削性能和磨损

大块金属玻璃(BMG)是新型的有前途的材料,具有出色的机械性能和耐腐蚀性。BMG零件需要打磨以获得高尺寸精度和表面光洁度。在目前的研究工作中,Zr-BMG是通过具有不同磨料(金刚石,CBN)和结合剂(电镀镍,镍)的单层金属结合剂超磨料研磨工具进行研磨的。单键Cr和Cu-Sn-Ti钎焊)。检查并比较了在使用不同工具进行BMG研磨时工具的研磨力,表面粗糙度,表面结晶状态,工具的磨损情况。Zr-BMG的比磨削能量也与SS304钢进行了比较。结果表明,金刚石刀具产生的磨削力比立方氮化硼低。镍电镀工具的磨削力比铜焊工具低。Zr基BMG比SS304钢产生更高的磨削力和比磨削能量。镀镍的工具可获得比钎焊工具低的Zr-BMG表面粗糙度。Zr-BMG的严重附着力决定了超级研磨工具的磨损。镀镍工具比铜焊工具产生更少的附着力。

更新日期:2021-02-23
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