harendra kua
TRANSCRIPT
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WATER JET CUTTING TECHNOLOGY
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CONTENTS:-
• INTRODUCTION• TYPES OF NON CONVENTIONALMACHINING
PROCESS• WATER JET MACHINING• PURE WATER JET MACHINING• ABRASIVE WATER JET MACHINING• FACTOR AFFECTING WATER JET MACHINING
PERFORMANCE• MATERIALS TO BE CUT• ADVANTAGES• DISADVANTAGES• CONCLUSION
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NON-TRADITIONAL MACHINING PROCESS
• In this process, a water jet is used ,which act as a tool in the form of a water saw to cut material.It is two types pure water jet & abrasive water jet.
CHEMICAL ELECTRICAL MECHANICAL
THERMAL
CHEMICAL MILLING
ECM USM EBM
PHOTO CHEMICAL MILLING
ECG AJM LBM
WJM EDM
WATER JET MACHINING:-
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PURE WATER JET MACHINING
• PUMP• INTENSIFIER• ACCUMULATOR• HIGH PRESSURE TUBING• NOZZLE• ORIFICE• CONTROL SYSTEM • CATCHER
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ABRASIVE WATER JET MACHINING :-
• Orifice-Sapphires-0.1 to 0.3 mm• Focussing Tube- 0.8 to 2.4 mm• Pressure -2500 to 4000 bar• Abrasive Flow -0.1 to 1.0 kg/min• Abrasive – garnet and olivine
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FACTORS AFFECTING WJM PERFORMANCE
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MATERIALS:-
ABRASIVE WATER JET• Steels• Non-Ferrous alloyes• Ti-alloys,Ni-alloys• Polymers• Metal Matrix composite• Ceramic matrix composite
PURE WATER JET• Concrete• Stone-Granite• Wood• Glass fibre metal
Laminates
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ADVANTAGES:-• Cheaper than other process.• Cut any material• Water jet cutting does not produce any dust or
particles.• There is no heat affected zones.
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DISADVANTAGES :-
• Abrasive powder cannot be reused.• It is not suitable for mass production because
of high maintenance requirements.• Very thick parts can not be cut with water jet.
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APPLICATIONS
WATER JET MACHINING• Cutting Soft Material• Textile , Leather Industry• Mass Immunization• Surgery
ABRASIVE WATER JET • Peening• Cutting• Pocket Milling• Drilling• Turning• Nuclear Plant Dismantling
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CONCLUSION:-There is no conventional tool used, therefore no physical contact between the workpiece and tool . This method is free from generate high heat affected zones. It is moreover environmental friendly, hence it is more preferred.
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