Jets, wakes and separated flows : proceedings of International Conference on Jets, Wakes and Separated Flows, ICJWSF
Online ISSN : 2424-2888
会議情報
EFFECTIVENESS OF SHEATHED ABRASIVE WATER SUSPENSION JET NOZZLE FOR SUBMERGED APPLICATION(Water Jet)
Seiji SHIMIZUTakatoshi NISHIYAMAHiroaki KATO
著者情報
会議録・要旨集 フリー

p. 349-354

詳細
抄録
The drilling capability of abrasive water suspension jets (AWSJs) under a submerged condition decreases steeply with the increase of the standoff distance, and the effective working distance for drilling and cutting is restricted in a small standoff distance region. When the standoff distance is small, the nozzle may be damaged by the reflected jet. In narrow environments, the nozzle sometimes cannot be set closer to the workpiece. Accordingly, we need methods that extend the effective working distance for submerged AWSJs. In this paper, a sheathed nozzle for AWSJs is proposed as a means of extending the effective working distance in submerged environments. Experiments are conducted to clarify the drilling capability of the jet delivered by this sheathed AWSJ nozzle using specimens of stainless steel at an injection pressure of 12MPa. A favorable nozzle shape for the sheathed AWSJ nozzle is discussed from the points of view of drilling capability and lifetime of the sheath.
著者関連情報
© 2005 一般社団法人 日本機械学会
前の記事 次の記事
feedback
Top