550+ Machining-and-machine-tool-operations Questions

Machining-and-machine-tool-operations Questions Set 8:

Quiz Mode

In ultrasonic machining (USM), material removal may occur due to:

fatigue failure

fouling failure

creep

free-flowing impact of the abrasives

Solution:

In which metal removal process is material removed by particles?

conventional machining

abrasive process

nontraditional machining

none of the above

Solution:

Which of the following is not a type of nontraditional machining?

Electrochemical process

Chemical machining

Mechanical energy process

None of the mentioned

Solution:

In a tool life experiment, if the cutting speed is doubled, the tool life is reduced to 1/4^th of the original value. What is the index (n) in Taylor's tool life equation?

0.5

0.25

Solution:

When two locators are attempting to constrain the same degree of freedom from two different locations, that operation is called:

Redundant locations

Fixture location

Center locations

Jaw location

Solution:

A milling cutter with a diameter of 70 mm and 16 teeth is operating at a cutting speed of 22 m/min. If the feed per tooth is 0.05 mm, the feed per minute is:

110 mm/min

80 mm/min

6 mm/min

60 mm/min

Solution:

A slot is to be milled by a side and face milling cutter with 10 teeth and a diameter of 200 mm. The cutting speed is 50 m/min and the feed is 0.95 mm/tooth. The table feed in mm/min will be:

265 mm/min

1008 mm/min

756 mm/min

144 mm/min

Solution:

Tool life testing on a lathe under dry cutting conditions gave n and C of Taylor tool life equation as 0.12 and 130 respectively. When a coolant was used, C increased by 10%. Find the percent increase in tool life with the use of coolant at a cutting speed of 90 m/min.

100%

95%

120%

122%

Solution:

Which of the following statements about Ultrasonic Machining (USM) is true?

There is direct contact between the tool and the workpiece

There is no direct contact between the tool and the workpiece

This process is not suitable for machining of brittle materials

This process consumes very less power

Solution:

A hole is drilled with the following parameters:

Diameter of the hole (d) = 8 mm

Feed rate (f) = 0.1 mm/revolution

Rotational speed of the drill bit (N) = 150 RPM

Calculate the material removal rate (in mm³/minute) for this drilling operation.

None of the above

700.67 mm³/minute

753.98 mm³/minute

801.44 mm³/minute

Machining-and-machine-tool-operations Questions Set 8:

In ultrasonic machining (USM), material removal may occur due to:

Solution:

In which metal removal process is material removed by particles?

Solution:

Which of the following is not a type of nontraditional machining?

Solution:

In a tool life experiment, if the cutting speed is doubled, the tool life is reduced to 1/4^th of the original value. What is the index (n) in Taylor's tool life equation?

Solution:

When two locators are attempting to constrain the same degree of freedom from two different locations, that operation is called:

Solution:

A milling cutter with a diameter of 70 mm and 16 teeth is operating at a cutting speed of 22 m/min. If the feed per tooth is 0.05 mm, the feed per minute is:

Solution:

A slot is to be milled by a side and face milling cutter with 10 teeth and a diameter of 200 mm. The cutting speed is 50 m/min and the feed is 0.95 mm/tooth. The table feed in mm/min will be:

Solution:

Tool life testing on a lathe under dry cutting conditions gave n and C of Taylor tool life equation as 0.12 and 130 respectively. When a coolant was used, C increased by 10%. Find the percent increase in tool life with the use of coolant at a cutting speed of 90 m/min.

Solution:

Which of the following statements about Ultrasonic Machining (USM) is true?

Solution:

A hole is drilled with the following parameters:

Diameter of the hole (d) = 8 mm

Feed rate (f) = 0.1 mm/revolution

Rotational speed of the drill bit (N) = 150 RPM

Calculate the material removal rate (in mm³/minute) for this drilling operation.

Solution:

Related Question Sets:

Related Topics:

Machining-and-machine-tool-operations Questions Set 8:

In ultrasonic machining (USM), material removal may occur due to:

Solution:

In which metal removal process is material removed by particles?

Solution:

Which of the following is not a type of nontraditional machining?

Solution:

In a tool life experiment, if the cutting speed is doubled, the tool life is reduced to 1/4th of the original value. What is the index (n) in Taylor's tool life equation?

Solution:

When two locators are attempting to constrain the same degree of freedom from two different locations, that operation is called:

Solution:

A milling cutter with a diameter of 70 mm and 16 teeth is operating at a cutting speed of 22 m/min. If the feed per tooth is 0.05 mm, the feed per minute is:

Solution:

A slot is to be milled by a side and face milling cutter with 10 teeth and a diameter of 200 mm. The cutting speed is 50 m/min and the feed is 0.95 mm/tooth. The table feed in mm/min will be:

Solution:

Tool life testing on a lathe under dry cutting conditions gave n and C of Taylor tool life equation as 0.12 and 130 respectively. When a coolant was used, C increased by 10%. Find the percent increase in tool life with the use of coolant at a cutting speed of 90 m/min.

Solution:

Which of the following statements about Ultrasonic Machining (USM) is true?

Solution:

A hole is drilled with the following parameters: Diameter of the hole (d) = 8 mm Feed rate (f) = 0.1 mm/revolution Rotational speed of the drill bit (N) = 150 RPM Calculate the material removal rate (in mm3/minute) for this drilling operation.

Solution:

Related Question Sets:

Related Topics:

In a tool life experiment, if the cutting speed is doubled, the tool life is reduced to 1/4^th of the original value. What is the index (n) in Taylor's tool life equation?

A hole is drilled with the following parameters:

Diameter of the hole (d) = 8 mm

Feed rate (f) = 0.1 mm/revolution

Rotational speed of the drill bit (N) = 150 RPM

Calculate the material removal rate (in mm³/minute) for this drilling operation.