单板纵向刨切过程中声发射特性的研究  

Study on Acoustic Emission(AE)Characteristics during Longitudinal Slicing of Veneers

作　　者：王宝金[1] 李伟光[1] 郭晓磊[1] 丁建文[1] 曹平祥[1] 

机构地区：[1]南京林业大学,江苏南京210037

出　　处：《林业机械与木工设备》2010年第7期21-24,共4页Forestry Machinery & Woodworking Equipment

基　　金：国家"十一五"科技支撑计划课题"家具装修材增值加工技术"(2006BAD18B06)

摘　　要：研究了纵向刨切单板时切削厚度、刀刃倾角对单板背面裂隙度和粗糙度以及声发射振铃计数的影响。结果表明,随着刨切厚度的增加,单板背面裂隙度和粗糙度以及声发射振铃计数都明显增加;随着刀刃倾角的增加(45°～70°),单板背面裂隙度和粗糙度小幅增加,但声发射振铃计数明显增加;声发射振铃计数与单板背面裂隙度和粗糙度均具有良好的线性关系。The effect of cutting thickness and cutting tool tilt angle on the back crack degree and surface roughness of veneers and acoustic emission ring-down counts in the longitudinal veneer cutting process is studied. The results show that the back crack degree and surface roughness of veneers and ring--down count of AE signals noticeably increase with the increase in the cutting thickness, and back crack degree and surface roughness of veneers slightly increase with the increase in the tilt angle from 45°to 70°, while the ring-down count rates of AE signals noticeably increases. There is a good linear relationship between ring--down count rates of AE signals and back crack degrees and surface roughness of veneers.

关 键 词：纵向刨切 背面裂隙度 粗糙度 声发射 

分 类 号：TS653.2[轻工技术与工程]