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首页> 外文期刊>JSME International Journal. Series B, Fluids and Thermal Engineering >Suitable Region of High-Speed Submerged Water Jets for Cutting and Peening
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Suitable Region of High-Speed Submerged Water Jets for Cutting and Peening

机译：高速水下水刀切割和喷丸的合适区域

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摘要

In order to establish useful techniques of cutting, drilling, peening and flushing by high-speed submerged water jets, we systematically observe the eroded surface on aluminum-alloy specimens in relation to the characteristics of cavitating jets, especially for the impinging jet through lucite specimens, for several types of nozzles. The impulsive pressures induced by the cavitating jets are also measured by means of pressure-sensitive film. It is concluded that the erosion characteristics are quite different in two typical standoff distances, i.e., the 1st and the 2nd peak. Cylindrical, small and deep pits predominantly occur at the 1 st peak, while small lots of plastic deformations predominantly occur in the 2nd peak. Therefore, the 1st peak is suitable for cutting, while the 2nd peak is suitable for peening.
机译：为了建立利用高速水下喷水切割，钻孔，喷丸和冲洗的有用技术，我们针对空化射流的特性，特别是通过萤石样品撞击射流，系统地观察了铝合金试样的腐蚀表面。 ，适用于几种类型的喷嘴。由空化射流引起的脉冲压力也通过压敏膜来测量。可以得出结论，在两个典型的隔离距离（即第一个峰值和第二个峰值）中，腐蚀特性有很大不同。圆柱形，小而深的凹坑主要发生在第一个峰处，而少量塑性变形主要发生在第二个峰处。因此，第一个峰适合切削，而第二个峰适合喷丸。

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