Abrasive Water Jet Machining Pdf

Water jet machining uses water mixed with abrasive materials projected with high pressure typically 0 7 mpa and focused on the workpiece.

Abrasive water jet machining pdf.

Water jet machining invented 1970 a waterjet consists of a pressurized jet of water exiting a small orifice at extreme velocity. Today we will learn about water jet machining and abrasive water jet machining principle working equipment s application advantages and disadvantages with its diagram. In order to cut harder materials like metals or granite an abrasive material is mixed in the water. Used to cut soft materials such as foam rubber cloth paper food products etc.

Typically the inlet water is supplied at ultra high pressure. The abrasive jet machining is the process of impinging the high speed stream of abrasive particles by high pressure gas or air on the work surface through a nozzle and metal removal occurs due to erosion caused by high speed abrasive particles. In this process a high speed well concentrated water jet is used to cut the metal it uses the kinetic energy of water particle to erode metal at the contact surface the jet speed is almost 600 m s. 30 8 3 waterjet and abrasive waterjet machining.

In this machining process a focus stream of abrasive particles are forces to impinge on work piece at high velocity. Pure water cutting pure waterjet is used mainly for relatively soft materials such as plastic textiles paper sealing materials metalic foils plywood. Abrasive jet machining working advantages disadvantages and applications abrasive jet machining interview question and answers seminar on high speed machining hsm report download seminar on advanced fine finishing processes report download 31 latest seminar topics for mechanical engineers seminar report pdf ppt download design and fabrication of working model of abrasive jet machine. Principle of water jet machine this process works on the basic principle of water erosion.

Manufacturers are increasingly turning to waterjet and abrasive waterjet machining in their quest for productivity and quality. Extremely powerful abrasive waterjets are capable of cutting through 3 inch 76 mm tool steel at a rate of 2 inches per minute 850 μm s 1 10 inch. These high velocity abrasive particles remove metal by brittle fracture or erosion from work piece. Abrasive jet machining is a non traditional machining process which is mostly used in machining of hardened metals.

Water jet machining wjm also called water jet cutting is a non traditional machining process in which high velocity jet of water is used to remove materials from the surface of the workpiece wjm can be used to cut softer materials like plastic rubber or wood. In smithells metals reference book eighth edition 2004. It is one of the most famous non traditional machining process because it is environment friendly. Abrasive water jet processes.

Abrasive jet machining definition. Powder blasting or abrasive jet machining is a technique in which a particle jet typically al 2 o 3 particles of 3 30 μm is directed toward a target for mechanical material removal. Two types of cutting let us take a closer look at the basics of the two waterjet cutting methods.