WATER JET MACHINING
1. What are the properties of water jet machining about effect cutting action?
High pressure, high velocity jet of water.
2. What are the types of units and its purpose used in water jet cutting system?
a. Pump — to generate high pressure
b. Machining unit– to actually cut the material with the jet nozzle.
c. Filtration unit — to clear the water after use.
3. Why we are using the diamond nozzle.
a. High hardness metal
b. Working life is more compared to other jewel nozzle such as ruby or sapphire.
4. Why do you select proper cutting fluid in WJM?
Cutting fluids mainly depends on the operation requirement, quality of finish, cutting speed and overall cost
5. Does there is any environmental effects while using the water jet machining.
There is no environmental pollution such as dust suspended in the air because the water jet drains any dust simultaneously
When cutting.
6. What are the advantages of WJC over conventional cutting methods?
a. Because of point cutting WJC is able to cut materials almost any pattern.
b. Material loss due to machining is minimum.
c. WJC will not burn surfaces or produces a heat an affected zone.
d. No environmental pollution.
7. What are the applications of WJM?
*Aero space
*Automobile
*Paper pulp industries
8. What are the commonly used additives in WJM?
1.Crly cerine
2.Polyethylene oxide
3.Long chain polymers
9. What is optical tracing system?
It employs an optical scanner that traces a line drawing and produces electronic signals that control the X-rays.
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