精密工学会誌論文集 = Journal of the Japan Society for Precision Engineering. Supplement. Contributed papers
巻
70
号
3
ページ
386 - 390
発行年
2004-01-01
ISSN
1348-8724
NCID
AA11966630
DOI
10.2493/jspe.70.386
出版者
精密工学会 = The Japan Society for Precision Engineering
抄録
High speed flow finishing method has recently developed, which has an excellent performance for polishing an inner wall of stainless steel capillary. However, its method seems to be unable to finish the inner wall of stainless steel pipe. Present paper focuses on the finishing of the inner wall of stainless steel curved pipe with high speed flow finishing method. It is found that an elastic string-type mandrel inserted into the hole of curved pipe has great performance on finishing, in which a diameter of mandrel is slightly smaller than hole size of the pipe. Experiments indicate that surface roughness of the inner wall of curved pipe decreases with the number of slurry flow pass. It is found that surface roughness of the inner wall of a 90°curved pipe decreases with the number of slurry flow pass, however, it incresases inversely after 80 passes and peculiar roughness curve is generated. On the other hand, a 180°curved pipe indicates that there is different surface roughness curve compared with 90°curved pipe. SEM micrographs describe that the spacing of grain boundary on the inner wall surface of the pipe extends gradually with the number of slurry flow pass, and it may be related to the variation of surface roughness.
高速流動法によるステンレス鋼曲がり管内壁面の研磨
TE-PR-KUROBE-T-386.pdf
(1.82MB)
