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6th Six Months > TPC 326 > Flashcards

TPC 326 Flashcards

1
Q

A universal horizontal milling machine is like a plain horizontal milling machine except?

A

It has a table swivel

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2
Q

What houses the spindle in a milling machine?

A

The column

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3
Q

What supports the saddle and table on a milling machine?

A

The Knee

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4
Q

How is the vertical milling attachment mounted?

A

It is bolted to the column for support

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5
Q

A system of gears in the vertical milling attachment changes the spindle rotation from?

A

Horizontal to vertical

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6
Q

Spindle speed is always expressed in?

A

RPM

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7
Q

A milling cutter’s speed is the rate at which?

A

A particular cutter tooth passes over the workpiece surface

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8
Q

In order to compute spindle speed, you must have?

A

Cutter speed
Cutter diameter
Conversion from ft to in

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9
Q

An effective method for holding a cylindrical workpiece, besides using a chuck, is to?

A

Mount it in a V-block

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10
Q

The angular graduations on the base of the vise allow you to?

A

Align the workpiece accurately at any angle to the overhead cutter

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11
Q

A slab milling cutter is a type of plain milling cutter that is especially designed for taking ________ cuts

A

Heavy

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12
Q

If the helix spiral to the right across the face of the cutter what kind of hand is it?

A

It is a right hand helix

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13
Q

If the work is fed from the left to the right what kind of cut are you making?

A

A left hand cut

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14
Q

The style B arbor has a _____________ which fits into the bearing in the arbor support.

A

Keyed bearing sleeve

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15
Q

Check the ____________ for proper positioning. Carefully move the arbor taper into the spindle.

A

Drawbar

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16
Q

Why should the arbor nut never be tightened or loosened unless the arbor support is in position?

A

The arbor can be sprung if it is not supported

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17
Q

Computing spindle speed in rpm formula?

A

rpm= sfpm x 4
————
D

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18
Q

In rough milling the workpiece what crucial for the most efficient cut?

A

Balance speeds, feeds, and the depth of cut

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19
Q

If you stop the automatic feed before the cut is finished what should you do?

A

Do not leave the cutter turning, it could leave grooves in the workpiece

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20
Q

How can you increase the surface quality?

A

Lower the feed rate while maintaining the same spindle speed

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21
Q

The first step in machining the T- slot is?

A

You must mill a slot

22
Q

To mill the first slot in the T slot you will need what kind of cutter?

A

Side milling cutter

23
Q

Aligning the cutter and workpiece

A

You can calculate this distance by subtracting one-half of the cutter width from the distance between the slots centerline and the edge of the workpiece

24
Q

The T slot is completed by using a T slot milling cutter fitted into the spindle of the milling machine with a?

A

Spindle adapter

25
Q

Since the T slot cutter is held in the horizontal spindle instead of on an arbor it is necessary to set the workpiece up on its?

A

Side to complete the T slot

26
Q

Angle milling a bevel on a workpiece you should use?

A

A 45 degree single angle cutter

27
Q

Use end mills for?

A

Vertical milling of slots

28
Q

Milling the T slots with a vertical milling attachment

A

Use the same T slot cutter that you used in the horizontal setup

29
Q

What milling cutter do you use when angular milling with a vertical milling attachment

A

Use an end mill in the vertical attachment to mill the bevel on the workpiece

30
Q

The procedure for milling a dovetail are very similar to the procedures for milling a T-slot the difference is?

A

You mill angular dovetails in the wall of the slot or groove instead of a T

31
Q

In straddle milling what controls the distance between the cutters?

A

Spacers

32
Q

As a cut is made in saddle milling the workpiece passes between the cutters, be sure there is clearance between?

A

The top surface of the workpiece and the spacers between the cutters

33
Q

What is the greatest advantage of straddle milling?

A

You save time

34
Q

What helps to balance the thrust load on the arbor?

A

The opposite helix angles when both are cutting

35
Q

The cutter used to mill the angled step must be wide enough to?

A

Finish the wide end of the step

36
Q

The most precise method of finding how wide the end of an angled step measures is?

A

To use trigonometry

37
Q

Why is it best practice to use the smallest cutter that will do the job?

A

It’s less expensive

38
Q

The amount of cross feed necessary to remove a given amount from the angled side of the workpiece is?

A

Actually less than the given amount

39
Q

In vertical face milling the shell end mill must be wider than the surface you must cut, why?

A

This avoids surface lines

40
Q

If you were to use a side milling cutter mounted on the horizontal arbor of the machine, you would produce?

A

A key seat with feathered ends

41
Q

Milling machine cutters for woodruff key seats and keyways are?

A

Standardized

42
Q

The last two digits in a woodruff key indicate?

A

The cutter diameter in eighths of an inch

43
Q

What kind of arbor is used in shell end mill mounting setup?

A

Style C arbor

44
Q

The two-fluted end mill has cutting edges on its sides and across the end, this allows for?

A

Plunging

45
Q

The two fluted end mill acts like a?

A

Drill bit

46
Q

When a dividing head is not used, it is best to use what on round work?

A

Straddle mill square ends on round work

47
Q

To determine the largest square that you can cut out of any shaft, multiply the diameter by?

A

.707

48
Q

What can you use if the straddle distance is slightly to narrow to the workpiece?

A

Install shims

49
Q

When milling tangs what procedure do you use?

A

The same general procedures for milling a square

50
Q

If a single flat surface is specified on the circumference of a cylindrical workpiece l, it is usually machined with a?

A

Plain milling cutter

6th Six Months (8 decks)

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