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Man Poo > N - Marking Out and Broaching > Flashcards

N - Marking Out and Broaching Flashcards

1
Q

First step in “Marking Out” the hole placement when drilling manually

A

Marking Blue

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2
Q

Used to scratch a cross at the desired location to drill manually

A

SCRIBER

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3
Q

Parts of a SCRIBER

A

Bent point
Straight Point
Grip

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4
Q

Used to create a small “Center Pot” or indentation at the center of the scratched cross

A

CENTER PUNCH (hammered or automatic hammerless type)

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5
Q

Short and stubby cutting tool which makes a shallow conical hole at the precise location that acts as a “funnel” for the subsequent twist drill. It has a small starter point to stop the “dancing”, which is immediately followed by a tapered shoulder.

A

CENTER DRILL

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6
Q

Twist drill which is 1/32’’ smaller than the desired hole used to remove the bulk of the metal, leaving a rather rough bore to the hole.

A

PILOT DRILL

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7
Q

Standard twist drill which completes the drilling procedure with the desired final diameter of the hole.

A

FINISH DRILL

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8
Q

CNC drilling requires _ tools to complete a task and _ automatic tool changes

A

3, 2

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9
Q

All steps in CNC Drilling

A

CENTER DRILL - PILOT DRILL - FINISH DRILL
ALSO: COUNTERSINK, COUNTERBORING, REAMING, TAPPING

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10
Q

Accommodations made to final finished holes for screw heads

A

HOLE MODIFICATION

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11
Q

When the hole is to carry a FLAT HEAD SCREW it must be modified to sit flush with the surface

A

COUNTERSINKING (60 DEGREES)

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12
Q

When the hole is to carry a CAP SCREW it must be modified to sit flush with the surface

A

COUNTERBORING

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13
Q

TRUE OR FALSE:
An oversized twist drill is NOT generally used for counterboring since this would not produce a flat seat to the counterbore

A

TRUE

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14
Q

A metal cup with serrated teeth along the periphery and a pilot twist drill in the center for proper positioning

A

HOLE SAW

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15
Q

Preferred way of cutting large holes in metal plate. Cannot be used in a power tool as they need to be held rigidly. Uses SPCT or “inserts”

A

TREPANNING TOOL

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16
Q

Tools not capable of cutting “Blind Holes”

A

TREPANNING TOOL
HOLE SAWS

17
Q

Hole modification to make a drilled hole very smooth and with precise dimensions.

A

REAMING (performed using a REAMER)

18
Q

Hole in which REAMING is performed

A

FINSIH DRILLED HOLE
(MUST BE 1/64TH UNDERSIZED)

19
Q

Most common MACHINE TOOLS dedicated to hole making operations

A

VERTICAL DRILL PRESS
(also known as:
STAND DRILL
VERTICAL DRILL
DRILL PRESS
SENSITIVE DRILL)

20
Q

Large, heavy duty machine capable of drilling big diameter holes while providing precise motion of the drill head with multiple degrees of freedom

A

RADIAL ARM DRILL

21
Q

Various cutting tools are sequentially placed into the JACOB’S CHUCKS, and are simply rotated to bring each desired tool to the lower position aligned above the hole.

A

TURRET DRILL
(TURRET/CAPSTAN)

22
Q

Lining up of several drill presses in a row

A

MULTIPLE SPINDLE DRILLING MACHINES/ GANG DRILLING

23
Q

Custom made attachments for specific applications, usually driven by the single spindle of a Stand Drill or Radial Arm.

A

MULTI SPINDLE DRILL HEAD ATTACHMENTS

24
Q

A single point cutting tool on the end of a long rod

A

BORING BAR

25
Q

Another way of making a large hole. A smaller hole is predrilled, then a bar is used to remove material from the walls, thereby opening up the diameter

A

BORING

26
Q

One of the earliest machines that could cut non round shapes. Only capable of cutting flat surfaces. Used to reduce the thickness of bar stock, cut straight grooves, or produce linear steps.

A

SHAPING MACHINE/SHAPER

27
Q

Operations performed on a SHAPER

A

Horizontal Cutting
Vertical Cutting
Inclined Cutting
Irregular Cutting

28
Q

“Big Brother” of the SHAPER, which can make huge cuts of metal. Keeps the cutting tools stationary and brings the material to them.

A

PLANING MACHINE/PLANER

29
Q

Linear cutting process that uses a long and slender tool which is slightly tapered.

A

BROACHING

30
Q

One of the most common broaching operations

A

Creation of KEYWAYS in shaft hubs

31
Q

Rectangular BROACH with teeth only along one side

A

KEYWAY BROACH

32
Q

OAL

A

Overall Length

33
Q

Placed in the hole to guide the broach as it is pushed through

A

Collared Keyway Bushing

34
Q

Used after each stroke in BROACHING to create deeper cuts

A

Keyway Broach Shims

35
Q

Type of broaching where both the cutter and the workpiece rotate at the SAME speed in the SAME direction.

A

ROTARY BROACHING

36
Q

what is the wobble angle in broaching?

A

1 degree

37
Q

Rotary Broaches can also be used in a

A

DRILL PRESS/ MILL with a stationary workpiece

38
Q

Short, stubby cutters that have the required cross-sectional geometry and a large degree angle. Cutters capable of creating blind, polygonal holes in a workpiece.

A

ROTARY BROACHING BITS

Man Poo (31 decks)

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