Harendra kua
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Transcript of Harendra kua
WATER JET CUTTING TECHNOLOGY
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
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:-
PURE WATER JET MACHINING
• PUMP• INTENSIFIER• ACCUMULATOR• HIGH PRESSURE TUBING• NOZZLE• ORIFICE• CONTROL SYSTEM • CATCHER
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
FACTORS AFFECTING WJM PERFORMANCE
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
ADVANTAGES:-• Cheaper than other process.• Cut any material• Water jet cutting does not produce any dust or
particles.• There is no heat affected zones.
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.
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
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.