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Machine Theory > Quiz #3 - Milling > Flashcards

Quiz #3 - Milling Flashcards

1
Q

A face mill will produce a surface that is:

  1. Rounded and parallel to the axis of the spindle
  2. Flat and parallel to the axis of the spindle
  3. Chamfered 30 degrees to the axis of the spindle
  4. Flat and perpendicular to the axis of the spindle
A
  1. Flat and perpendicular to the axis of the spindle
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2
Q

What is the maximum depth of cut for an end mill:

  1. equal to twice the cutter diameter
  2. equal to one half the cutter diameter
  3. equal to one quarter the cutter diameter
  4. equal to the cutter diameter
A
  1. equal to one half the cutter diameter
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3
Q

What holds a milling machine arbor securely in the spindle?

  1. self holding taper
  2. morse taper
  3. draw bolt
  4. drive lugs
A
  1. draw bolt
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4
Q

When the swivel table on a Universal Milling Machine is being re-aligned, how should a magnetic base dial indicator be mounted?

  1. Dial base on the column and the pointer on the table. move the table
  2. Dial base on the table and the pointer on the column. Move the table
  3. Dial base on the saddle and the pointer on the table. Move the table
  4. Dial base on the knee and the pointer on the column. Move the knee
A
  1. Dial base on the table and the pointer on the column. Move the table
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5
Q

When a vise is being aligned on the table of a Knee and Column milling machine, how should a magnetic base dial indicator be mounted?

  1. Dial base on the column, pointer on the vise’s solid jaw. Move the table
  2. Dial base on table, pointer on the vise’s moveable jaw. Move the table
  3. Dial base on vise’s solid jaw, pointer on the column. Move the table
  4. Dial base in vise, pointer on the arbor. Rotate the arbor
A

1.Dial base on the column, pointer on the vise’s solid jaw. Move the table

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6
Q

During the milling operation when would you use a backlash eliminator?

  1. For all milling operations
  2. For conventional milling
  3. For drilling, counter boring, and countersinking operations.
  4. For climb milling
  5. For none of the above
A
  1. For climb milling
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7
Q

How is the feed on a milling machine specified?

  1. In inches per revolution
  2. In inches per millimeter
  3. In inches per minute
  4. In inches per foot
  5. None of the above
A
  1. In inches per minute.
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8
Q

What transfers the power from the milling machines spindle to the milling cutter?

  1. the drive keys or lugs
  2. the self-holding taper
  3. the rotation of the spindle
  4. the draw bolt
  5. none of the above
A
  1. the drive keys or lugs
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9
Q

A Ram type milling machine is not considered to be a knee and column milling machine because it only does light duty milling.

  1. True
  2. False
A
  1. False
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10
Q

What is the size of a # 812 woodruff key seat cutter?

  1. 1’ diameter and 3/8’ wide
  2. 2’ diameter and 1/2’ wide
  3. 1/8’ wide and 1 1/4’ diameter
  4. 1/4” wide and 1 1/2” diameter
  5. none of the above
A
  1. 1/4” wide and 1 1/2” diameter

The first two numbers are /32 and the second two numbers are /8.

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11
Q

What types of milling machine arbors are there?

  1. Straight and taper arbors
  2. A, B, and C arbors
  3. Steep and self holding arbors
  4. Knee and Column arbors
A
  1. A, B, and C arbors

A - Light duty

B - Heavy duty

C - Can also be used in vertical mills

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12
Q

What RPM would you turn a workpiece in a milling machine when face milling using a 3” diameter carbide face mill (CS= 300 SFPM) on a 2” wide mild steel work piece?

  1. 400 RPM
  2. 600 RPM
  3. 1200 RPM
  4. None of the above
A
  1. None of the above

The workpiece does not turn when face milling.

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13
Q

Where does the cutting action happen on an end mill?

  1. only on the end
  2. only at the shank end
  3. only on the side
  4. both 1 and 3
  5. None of the above
A
  1. Both 1 and 3
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14
Q

Calculate the feed rate for cutting a key seat in a 4” diameter mild steel shaft using a 1” diameter HSS end mill with 4 flutes.

CS = 100 SFPM, Chip load/tooth = 0.002”

(Feed rate - RPM x Chip load x number of teeth)

  1. 3.2 inches per revolution
  2. 3.2 inches per minute
  3. 0.8 inches per revolution
  4. 0.8 inches per minute
A
  1. 3.2 inches per minute.

You first need to establish the RPM

CS x 4 / diameter of cutter.

400 RPM

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15
Q

What should the feed rate be for reaming on a milling machine?

  1. 4 to 5 times the feed rate for drilling
  2. the same as the feed rate for drilling
  3. one third the feed rate for drilling
  4. 2 times the feed rate for drilling
A
  1. 2 times the feed rate for drilling

1/2 the speed, twice the feed.

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16
Q

What will happen if a tool shank is inserted into a collet before it is snapped into the nut?

  1. The collet will not be able to snap into the nut
  2. The collet and the tool will be difficult to remove from the chuck body
  3. The tool will not be well-aligned
  4. All of the above
A
  1. All of the above
17
Q

A Jacob’s chuck is designed to hold an endmill adequately

  1. True
  2. False

You better get this one right Josh!

A
  1. False
18
Q

When an edge finder moves off center with a distinct wobble:

  1. It is broken and must be thrown out
  2. It is damaged, but a good MW can repair it
  3. The center of the spindle is above the edge of the workpiece
  4. The center of the spindle is one half the diameter of the contact from the edge of the workpiece
A
  1. The center of the spindle is one half the diameter of the contact from the edge of the workpiece
19
Q

The length of a keyset:

  1. does not include any runout or radius left by the cutter
  2. is always measured from the flat
  3. includes the rounded end left by a slot drill
  4. can be found in Machinery’s Handbook
A
  1. Does not include any runout or radius left by the cutter
20
Q

Taper shank drills may be inserted directly into a milling machine spindle.

  1. True
  2. False
A
  1. False

Grandmama & Grandpapa!

Machine Theory (7 decks)

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