Magnetic fluid grinding of HIP-Si3N4 rollers

被引：43

作者：

Umehara, N

Komanduri, R

机构：

[1] OKLAHOMA STATE UNIV,STILLWATER,OK 74078

[2] TOHOKU UNIV,SCH MECH ENGN,SENDAI,MIYAGI 980,JAPAN

来源：

WEAR | 1996年 / 192卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

magnetic fluid grinding; Si3N4; abrasives; rollers; hot isostatic pressing; surface finish;

D O I：

10.1016/0043-1648(95)06763-9

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Hot pressed silicon nitride (Si3N4) rollers were finished by magnetic fluid grinding yielding a surface finish, R(a) of about 5 nm. Three types of abrasives (B4C, SiC, and Cr2O3) in the 30 to 50 mu m size range and three grain sizes of one of the abrasives, namely, Cr2O3 (3, 6, and 30 mu m) were used to investigate the effect of abrasive and grain size on the removal rates and surface finish. High removal rate (1.1 mu m min(-1)) was obtained with B4C abrasive and high surface finish (R(a) of 5 nm) with Cr2O3 abrasive. Magnetic fluid grinding process enables finishing of the rollers with rounded edges (crowns) which may be ideal for roller bearing applications.

引用

页码：85 / 93

页数：9

共 22 条

[1] MAGNETIC FLUID GRINDING MECHANICS [J].