Flow structure and cutting capability of abrasive water injection jet

被引：0
作者：
Shimizu, Seiji [1 ]
Kumagai, Shinji [1 ]
Ochi, Akio [1 ]
机构：
[1] Dept. of Mech. Systems Engineering, Hiroshima Institute of Technology, Hiroshima-shi, Hiroshima, 731-5193
来源：
Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B | 2004年 / 70卷 / 691期
关键词：
Abrasive Water Injection Jet; Cutting; Multi-Phase Flow; PIV; Velocity Distribution;
D O I：
10.1299/kikaib.70.629
中图分类号：
学科分类号：
摘要：
Experimental studies are conducted to clarify the relationship between the flow structure and the cutting capability of abrasive water injection jets (AWIJs). The water velocity is obtaind by the PIV method. It is shown that the water velocity decreases steeply with slight addition of abrasive. When the abrasive flow rate is relatively large, the water velocity is 0.25 to 0.35 times fo the theoretical velocity calculated by Bernoulli's equation. Cutting tests conducted with specimens of aluminum plate show the existence of the optimum abrasive-mass flow rate, which gives minimum taper of the cut and narrow initial damage zone.
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页码：629 / 635
页数：6
相关论文
共 11 条
  • [1] Momber A.W., Kovacevic R., Principles of Abrasive Water Jet Machining, pp. 1-2, (1998)
  • [2] Brandt C., Louis H., Meier G., Tebbing G., Abrasive suspension jets at working pressures up to 200 MPa, Jetting Technology, pp. 489-509, (1994)
  • [3] Himmelreich U., Fluiddynamische Modelluntersuchungen an Wasserabrasivstrahlen, VDI Fortschritt-Berichte, 7, 219, (1992)
  • [4] Claude X., Merlen A., Thery B., Gatti O., Abrasive waterjet velocity measurements, Jetting Technology, pp. 235-251, (1998)
  • [5] Sawamura T., Fukunishi Y., Kobayashi R., The effects of the abrasive flow rate on abrasive and water velocities, Jetting Technology, pp. 185-193, (1998)
  • [6] Sawamura T., Fukunishi Y., Kobayashi R., The effects of the abrasive flow rate on abrasive and water velocities, Proc. Int., Symp. New Appl. Water Jet Technol., pp. 27-32, (1999)
  • [7] Chung Y., Geskin E.S., Prediction of the geometry of the kerf created in the course of abrasive waterjet machining of ductile materials, Jet Cutting Technology, pp. 525-541, (1992)
  • [8] Guo N.S., Schneidprozeß und Schnittqualität beim Wasserabrasivstrahlschneiden, VDI Forschritt-Berichte, 2, 328, (1994)
  • [9] Hashish M., Pressure effects in Abrasive-Waterjet (AWJ) machining, Trans. ASME, J. Eng. Mater. Technol., 111, pp. 221-228, (1989)
  • [10] Osman A.H., Buisine D., Thery B., Houssaye G., Visual information of the mixing process inside the AWJ cutting head, Proc. 9th Am. Waterjet Conf., pp. 189-209, (1997)
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