Production Engineering - Mechanical Engineering Questions and Answers

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Fixtures are used

for holding and guiding the tool in drilling, reaming or tapping operations

for holding the work in milling, grinding, planing or turning operations

to check the accuracy of workpiece

none of the above

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In ultra-sonic machining, tool is made of

tungsten carbide

brass or copper

diamond

stainless steel

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Ceramic tools has greater tool life than carbide tools.

True

False

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The rake angle of a single point cutting tool corresponds to __________ of a twist drill.

lip clearance angle

helix angle

point angle

chisel edge angle

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A tool used to withdraw a drill from the sleeve is called

drill remover

drill puller

drift

drill drawer

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The cutting fluid mostly used for machining steel is

water

soluble oil

dry

heavy oils

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The lip angle is the angle

between the tool face and the ground end surface of flank

made by the face of the tool and the plane parallel to the base of the cutting tool

between the face of the tool and a line tangent to the machined surface at the cutting point

none of the above

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Small nose radius

increases tool life

decreases tool life

produces chipping and decreases tool life

results in excessive stress concentration and greater heat generation

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The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called

profile milling

gang milling

saw milling

helical milling