Wear-induced variation of surface roughness in grinding 2.5D Cf/ SiC composites

被引：17

作者：

Xu, Qihao ^{[1
,2
]}

Xiao, Shenglei ^{[1
,2
]}

Wang, Yi-Qi ^{[1
,2
]}

Peng, Can ^{[1
,2
]}

Gao, Hang ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, State Key Lab High performance Precis Mfg, Dalian 116024, Peoples R China

[2] Dalian Univ Technol, Sch Mech Engn, Dalian 116024, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2024年 / 264卷

基金：

中国国家自然科学基金;

关键词：

Machining; Composites; Surface; Modelling; Cumulative wear; Damage mechanics; REMOVAL MECHANISM; FORCE; WHEEL; TOPOGRAPHY; FRACTURE; MODELS; TOOL;

D O I：

10.1016/j.ijmecsci.2023.108811

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

As the ideal high-temperature component materials, Cf/SiC composites require high grinding surface quality for their final preparation. It is a challenging issue to achieve the desired surface quality of such hard brittle material with serious rapid tool wear. A surface roughness predictive model involving the grinding wheel cumulative wear was developed for grinding process of 2.5D needled Cf/SiC composites. Compared with the experimental data, the predicted ground surface roughness errors of 2.5D needled Cf/SiC composites are less than 12 %. It is found that due to the grinding wheel cumulative wear effects, the resin-bonded diamond wheel presented self -sharpening phenomenon as increasing specific material removal volume (SMRV). The grinding wheel cumulative wear effects are conducive to Cf/SiC ground surface improvement. When the SMRV reached 720 mm3/mm, the surface roughness decreased by 21.2 % with a 180# grinding wheel, and 8.6 % with a 280# grinding wheel. This work provides some insights for preparing the tool condition during grinding 2.5D needled Cf/SiC composites.

引用

页数：16