Shared Flashcard Set

Details

1st year machinist
Unit 2
76
Other
Not Applicable
03/29/2015

Additional Other Flashcards

 


 

Cards

Term

Definition

Turret lathe

Term

Definition

Engine lathe

Term

How is an engine lathe sized

Definition

The swing and the distance between centers

(swing is the largest diamater that can swung over the ways)

Term

What are the 5 main parts of an engine lathe

Definition

Bed

Headstock

Quick change gear box

Carriage

Tailstock

Term

Where is the feed reverse lever located on an engine lathe

Definition

Headstock

Term

What is the purpose of change gears on an engine lathe

Definition

Transfer motion from the spindle to the quick change gear box

Term

What are the 3 common methods for mounting work holding devices on an engine lathe

Definition

Threaded spindle nose

Taper and key spindle nose

Cam lock spindle nose

Term

How is feed rate expressed on a Metric engine lathe

Definition

Millimeters per revolution of the spindle

Term

What transmits motion from the quick change gear box to the carriage  on an engine lathe

Definition

Lead screw & Feed rod

Term

Definition

Lead screw

Term

What are the three main parts of the carriage on an engine lathe

Definition

Saddle

Cross slide

Apron

Term

What provides perpendicular movement to the spindle axis on an engine lathe

Definition

Cross slide

Term

Where is the tool post commonly mounted on an engine lathe

Definition

Compound rest

Term

Where is the compound rest mounted on an engine lathe

Definition

On the cross slide

Term

Where is the feed change lever located on an engine lathe

Definition

On the apron

Term

What allows tools to be mounte in the tailstock spindle

Definition

Morse taper

Term

Where would a live center be located

Definition

head stock spindle

Term

Where would a dead center be located

Definition

In the tail stock spindle

Term

What is a microset adjustable centre used for

Definition

cuttin slight tapers

Term

What is the purpose of lathe dogs

Definition

To apply a driving force to the workpiece when turning between centers

Term
[image]
What piece of equipment is being pictured

 

Definition

A drive plate

Term

What type of lathe chuck uses a scroll plate

Definition

3 jaw universal

Term

What is the main purpose for using a collet chuck

Definition

Small work that requires high RPM

Term

Definition

Magnetic chuck

Non ferrous materials

Term

[image]

What type of work holding device is being shown

Definition

Face plate

Term

What is the taper per foot for a solid mandrel

Definition

0.006" to 0.008" taper per foot

Term

Where is the size stamped on a solid mandrel

Definition

On the large end

Term

What are mandrels used for

Definition

Hold workpieces by their bore

Term

What are threaded mandrels used for

Definition

Holding workpieces with internal threads

Term

What are steady rests used for

Definition

support the end of a workpiece when a tail stock center can not be  used

    

support the middle of a workpiece when deflection or vibration is a problem

Term

What is a follower rest used for

Definition

Support long thin workpieces to minimize deflection

Term

Where is a steady rest mounted

Definition

To the lathe bed

Term

Where is a follower rest mountd

Definition

To the saddle

Term

What are two types of taper attachments

Definition

Telescoping

 

Plaen

Term

Name three ways to cut a taper on an engine lathe

Definition

Compound rest

Tail stock offset

Taper attachment

Form tool

Term

Definition

Turret tool post

Shims

Term

Definition

Square quick change toolpost

Term

[image]

What type of tool post is being shown

Definition

Multi position quick change tool post

Term

[image]

What style tool holder is being shown

What hand is it

Definition

American style

 

Right hand

Term

What are the purposed for knurling

Definition

Grip

Appearance

Fits

Term
What type of tool is being shown[image]

 

Definition

knurling tool

Term

Which would be more wear resistant:

High Speed Steel or Carbide

 

Definition

Carbide

Term

What are two types of high speed steel

Definition

Tungsten

Molybdenum

Term

What kind of grinding wheel would be used for carbide cutting tools

Definition

Silicon carbide

Term

What kind of grinding wheel would be used for high speed steel

Definition

Aluminum Oxide

Term

What material is used to manufacture Ceramic tool bits

Definition

Aluminum Oxide

Term

What does tool signature refer to

Definition

The effective angles when the tool is in the tool holder

Term

What cutting tool angle will cause the chip to be thinner and longer

Definition

Side cutting edge angle

Term

What cutting tool angle provides clearance between the end of the tool and workpiece

Definition

End cutting edge angle

Term

What cutting tool angle allows the tool to advance along the work

Definition

Side relief

Term

Where are relief angles found on a cutting tool

Definition

Below the cutting edge

Term

What cutting tool angles affect the shape of the chip and the direction the chips flows

Definition

Rake angles

Term

What cutting tool angle makes the cutting tool stronger

  • a positive rake angle
  • a negative rake angle
Definition

A negative rake angle

Term

What cutting tool angle would be better when dealing with an interrupted cut

  • positive rake angle
  • negative rake angle
Definition

Negative rake angle

Term

What rake angle must a threading tool have

Definition

None: called a zero rake or neutral rake

Term

Three ways to align a tail stock are:

Definition

Alignment marks

Taking trial cuts and measuring

Using a parallel bar and checking with a dial indicator

Term

Three methods for cutting a taper on an engine lathe are

Definition

Compound rest

Taper attachment

Tail stock offset

Term

What are the steps to make an accurate true hole

Definition

Center drill

Drill

Bore

Ream

Term

An american tool holder with a left hand offset is used to hold

  • a left hand tool
  • a right hand tool
Definition

a right hand tool

Term

A gun tap would be used for

  • through holes
  • blind holes
Definition

through holes

Term

   Calculate the lead of a 1/4 - 20 unf 2A  2 start bolt

Definition

lead = pitch x number of starts

       = 0.05  x  2

       = 0.100

Term

The most important dimension on a screw thread is

Definition

Pitch diameter

Term

For a 1/2 -13 UNC 2A thread

 

the C refers to what

Definition

coarse series

Term

For a 1/2 -13 UNC 2A thread

 

the 2 refers to what

Definition

A class 2 fit

Term

For a 1/2 -13 UNC 2A thread

 

The A refers to what

Definition

An external thread

Term

What is the taper for an American National Pipe Thread

Definition

3/4" per foot

Term

What is the included thread angle for an acme thread

Definition

29 degrees

Term

For an M1x1.25-6G 5H thread

 

what does the 6G refer to

Definition

pitch diameter

Term

For an M1x1.25-6G 5H thread

 

what does the 5H refer to

Definition

Outside diameter

Term

For an M1x1.25-6G 5H thread

 

What does the G refer to

Definition

Internal thread and tolerance position

Term

For an M1x1.25-6G 5H thread

 

what does the 6 refer to

Definition

tolerance grade

Term

The distance a nut will travel on a screw when rotated one revolution would be the _______ of the thread

Definition

lead

Term

What is the included angle of a British Whitworth thread

Definition

55 degrees

Term

The angle of keeness on a lathe tool is formed by what other two angles

Definition

Side relief and side rake

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