JP Journal of Solids and Structures
Volume 1, Issue 2, Pages 125 - 137
(July 2007)
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STUDY ON THE ABRASIVE WATERJET CUTTING DEPTH MODEL FOR ROCK MATERIALS OF KOREA
Ung-Ho Seo (Korea), Chung-In Lee (Korea) and Jae-Joon Song (Korea)
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Abstract:
Water jet cutting has an advantage of lower noise, vibration and dust over conventional cutting or drilling. In Seoul National University, Korea, machining process by abrasive water jet has been studied by several researchers such as Hyung-Mok Kim [6], Dae-Il Kim [5], Ho-Young Seo [10] and Cheol-Hong Kwak [8], whose main focus was on abrasive waterjet drilling or disk slotting. In this study, a prediction model of rock cutting depth has been suggested based on experimental results of rock materials in Korea. Various cutting depth prediction models suggested by other researchers were applied to our experimental data such as cutting depth, pressure, nozzle traverse speed, nozzle diameter and abrasive flow rate. Capello and Gropetti model and Iihoshi model relatively well predicted the cutting depth at various pressure while Zeng and Kim model, Kovacevic model of 1992 and Iihoshi model well explained the relation between rock cutting depth and nozzle traverse speed. Iihoshi model and DIAjet (Direct Injection Abrasive Water-Jet) model by Yazici and Iihoshi were effective to predict the cutting depth according to abrasive feed rate variation.
After the comparison study, a cutting depth prediction model for the experimental rock materials was suggested. |
| Keywords and phrases: abrasive water jet, cutting depth, cutting model. |
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