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Doosan > Lathe Basics > Flashcards

Lathe Basics Flashcards

1
Q

Automatic Bar Machine

A

A turning machine that continuously cuts a number of parts from a piece of bar stock, one after another. The bar stock advances through the spindle and is held by the collet during the operation.

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2
Q

Axis

A

An imaginary straight line that passes through the center of an object.

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3
Q

Ballscrew

A

The threaded device that controls the precise movement of the various turning center components.

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4
Q

Bar Machine

A

A turning machine that continuously cuts a number of parts from a piece of bar stock, one after another. The bar stock advances through the spindle and a collet during the operation.

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5
Q

Bar Stock

A

Raw material purchased from metal manufacturers in the form of long bars.

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6
Q

Bed

A

The base of a lathe that supports the headstock, tailstock, and the ways.

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7
Q

Boring

A

The process of using a single-point tool to enlarge a preexisting hole.

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8
Q

Boring Bar

A

A long bar used to position a single-point tool for boring operations.

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9
Q

Carbide Insert

A

A cutting bit made of hard material that has multiple cutting edges. Once a cutting edge is excessively worn, it can be indexed to another edge, or the insert can be replaced.

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10
Q

Carriage

A

The section of the turning center that slides back and forth along the ways and supports the cross slide and turret.

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11
Q

Center

A

The device located in the tailstock that supports the end of the workpiece opposite the spindle.

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12
Q

Chuck

A

A device that holds a workpiece in place as it rotates. The chuck commonly has three or four jaws that can be adjusted to fit various sizes.

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13
Q

Chucker

A

A turning machine that requires an operator to load one workpiece at a time.

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14
Q

Collet

A

A slitted device that holds a workpiece in place as it rotates. A collet has a hole through which the workpiece passes, and it is designed to hold specific dimensions. Collets can also be used to hold cutting tools.

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15
Q

Contour Turning

A

An operation performed on a lathe that feeds a tool along a curved line in order to create curved, cylindrical shapes.

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16
Q

Cross Slide

A

The device supported by the carriage that positions the turret toward and away from the workpiece.

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17
Q

Cutoff

A

An operation performed on the lathe that uses a cutting tool to separate a part from the rest of the stock.

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18
Q

Cutoff Tool

A

A cutting tool used on a lathe that separates a part from the rest of the stock.

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19
Q

Depth Of Cut

A

The thickness of the material that is removed by one pass of the cutting tool over the workpiece.

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20
Q

Drilling

A

The process of using a multi-point tool to penetrate the surface of a workpiece and make a round hole.

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21
Q

Drills

A

A multi-point tool used to penetrate the surface of a workpiece and make a round hole.

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22
Q

Drive

A

The main mechanism that powers the rotation of the workpiece.

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23
Q

Engine Lathe

A

The original and most basic type of lathe.

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24
Q

Facing

A

An operation performed on a lathe that feeds a single-point tool into the end of a cylindrical workpiece to create a flat surface.

25
Q

Feed Rate

A

The speed at which the cutting tool of a lathe moves along the length of a workpiece.

26
Q

Headstock

A

The end of a lathe that holds the spindle and the drive that rotates the workpiece.

27
Q

High-Speed Steel

A

A tool steel used to machine metals at high cutting speeds. High-speed steel stays hard at high temperatures and resists abrasion.

28
Q

Horizontal Turning Machine

A

A turning machine in which the spindle axis is parallel to the ground.

29
Q

Indexed

A

The precise positioning of a tool during an operation.

30
Q

Inner Diameter Operations

A

Cutting operations that take place on the interior surface or hole of a cylindrical workpiece.

31
Q

Lathe

A

A tool commonly used to machine cylindrical forms. It is generally considered the backbone of the machine shop.

32
Q

Live Tooling

A

A feature that equips the turret with power-driven cutting tools such as end mills and drills. These tools can perform cutting operations off-center while the workpiece is held still in the spindle.

33
Q

Mills

A

A multi-point tool that is used to remove metal from the surface of a workpiece.

34
Q

OD Chamfering

A

An operation performed on a lathe that feeds a tool to create an angled edge on the workpiece.

35
Q

OD Grooving

A

An operation performed on the lathe that creates a circular channel or passageway around the exterior of a workpiece.

36
Q

OD Threading

A

The process used to machine a long, spiraling ridge down the outer surface of a workpiece.

37
Q

Outer Diameter Operation

A

Cutting operations that take place on the outer surface of a cylindrical workpiece.

38
Q

Parts Catcher

A

A device used to catch a part once it is separated from the stock in a bar machine.

39
Q

Reamer

A

A multi-point cutting tool with straight cutting edges used to enlarge or smooth holes that have been previously drilled.

40
Q

Reaming

A

The process of using a multi-point tool to smooth the interior surface of a hole.

41
Q

Rotational Speed

A

The speed at which a workpiece spins on a lathe.

42
Q

Servomotor

A

A special motor used in CNC machines that turns the ballscrew to move parts with precision.

43
Q

Single-Point Tool

A

A machining tool that has one single cutting edge.

44
Q

Spindle

A

The device located in the headstock that holds the workpiece in place to rotate it.

45
Q

Stock

A

Raw material that is used to make manufactured parts.

46
Q

Stock Stand

A

A long structure that supports bar stock as it passes through the bar machine.

47
Q

Tailstock

A

The device at the end of a lathe that supports the end of longer workpieces.

48
Q

Taper Turning

A

An operation performed on a lathe that feeds a tool at an angle to the length of the workpiece in order to create a conical shape.

49
Q

Thread

A

A long, spiraling ridge that winds down the length of a workpiece.

50
Q

Tolerance

A

The unwanted but acceptable deviation from a desired dimension.

51
Q

Toolholder

A

The device used to rigidly hold a carbide insert in place. Toolholders are available in standardized sizes.

52
Q

Turning

A

The machining process used to make cylindrical parts. Turning is commonly performed with a lathe.

53
Q

Turning Center

A

A lathe that is controlled by a computer running programs driven by numerical data. Sophisticated turning centers can also perform a variety of drilling and milling operations.

54
Q

Turret

A

The component of a lathe that holds a number of cutting tools. The turret rotates to place tools in the cutting position.

55
Q

Turret Lathe

A

A lathe that contains a turret. The turret holds several tools for machining.

56
Q

Vertical Turning Machine

A

A turning machine in which the spindle axis is perpendicular to the ground floor.

57
Q

Ways

A

Two precisely measured, parallel tracks that support and guide the movement of the carriage and cross slide.

58
Q

Workholder

A

A device used to hold a workpiece.

Doosan (5 decks)

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