Research on surface quality of Si3N4 ceramics by internal grinding

3rd China-Romania Science and Technology Seminar

自然科学;工业技术

Yan, H.^1,2 ; Wu, Y.^1,2 ; Wang, H.^1,2

School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang

110168, China^1

Natl.-Loc. Joint Engineering Laboratory of NC Machining Equipment and Technology of High-Grade Stone, Shenyang Jianzhu University, Shenyang

110168, China^2

关键词: Equivalent diameter;    Geometrical relationship;    Hard and brittle materials;    Internal grinding;    Machined surface quality;    Material removal mechanisms;    Theoretical modeling;    Undeformed chip thickness;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/399/1/012058/pdf
DOI  :  10.1088/1757-899X/399/1/012058

来源: IOP

【 摘 要 】

The machined surface quality of hard and brittle materials was studied based on the analysis of the material removal mechanism of ceramics. According to the geometrical relationship of the internal grinding, the equivalent diameter of grinding wheel was deduced. In the internal grinding, the models of undeformed chip thickness, peak-valley surface roughness and arithmetic mean surface roughness were established with the assistance of planar grinding. The proposed models were verified utilizing the orthogonal test of internal grinding Si3N4 ceramics. The trend of experimental results was consistent with the theoretical model. The scientific validity of the proposed models was supported by the experimental results, and the investigation provides a theoretical reference and experimental basis for further study on the grinding of ceramic materials.