B - Operations – Transporting – 24 – C
Patent
B - Operations, Transporting
24
C
51/6
B24C 5/04 (2006.01) B24C 1/04 (2006.01) B26F 3/00 (2006.01)
Patent
CA 1199799
ABSTRACT This invention disclosure describes a new hard material cutting and drilling tool and cutting system method. This technique, a high energy abrasive-fluid jet, cuts by accelerating abrasive particles with high velocity eroding fluid jet stream(s). The concept of using fluid-accelerated abrasive particles for material removal has been demonstrated with both wet sand-blasting techniques and gas powered abrasive jet systems. In these methods, no deep penetration can be achieved. Abrasive-fluid jet cutting is an extension to these technologies which produce deep cuts in high strength advanced composites for a wide range of applications. The success of this new technique is achieved by reducing nozzle wear, producing a coherent stream and maximizing the abrasive particle exit velocity. The advantages of this new technique include versatility in cutting a wide range of material with deep kerfing capability with no fire hazards, low power levels needed, high edge quality, no delamination, no spallin, no thermal distortion, low noise, adaptability to remote operations, contour cutting and availability of the element used. The potentials for this technique include oil well casing perforation and drilling, use as an augmenting tool, cutting under water, steel platforms for off shore drilling, cutting steel pipe-lines, rock, concrete, glass, metal honeycomb, foams, laminated metal, etc., bore hole mining applications and forming a bottle shape hole by jet drilling.
471468
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