Effects of Mixing Chamber Shape on Cutting Performance in Abrasive Water Jet

Abstract:

It is well known that abrasive water jet(AWJ) was developed as a kind of high-density energy processing technologies. AWJ is used to obtain cutting quality of various materials such as metal, ceramics, glass and composite materials within a short manufacturing time because of the characteristics of heatless and noncontact processing. However, surface roughness and dimension error like round, burr, taper depend on the cutting conditions such as pump pressure, cutting speed, orifice diameter, stand off distance, abrasive flow rate and workpiece. In this paper, the effect of the shape of mixing chamber on surface quality is studied. Parabolic mixing chamber is proposed and performance is compared to that of cylindrical mixing chamber by experiment. The surface roughness was improve 0.15㎛ to 2.29㎛ and the taper angle was improve 0.0716° to 0.143° by parabolic mixing chamber.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 2134-2139
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.2134
• Online since: January 2013
• Authors: Hyo Ryeol Lee, Yong Sik Cho, Hwa Young Kim, Jung Hwan Ahn
• Keywords: Abrasive Water Jet (AWJ), Cutting Head, Kerf Taper, Mixing Chamber, Surface Roughness (SR)

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