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Material Science - Midterm > Chapter 4: Shearing and Material Removal > Flashcards

Chapter 4: Shearing and Material Removal Flashcards

1
Q

Seaming, flanging, roll bending and draw bending belong to what classification of metal forming operation

A

bending

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2
Q

When the bending pressure is removed at the end of deformation, elastic energy remains in the bend part, causing it to recover partially toward its original shape.

A

Springback

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3
Q

Piercing, blanking, lancing, and fine blanking are classified as

A

shearing

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4
Q

High cutting temperatures can cause inaccuracies in part dimensions due to thermal expansion of work material
True or False?

A

True

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5
Q

Minimum distance between holes or the edge of the stock should be at least equal to the metal thickness

A

True

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6
Q

Process used to cut coils of sheet metal into several rolls of narrower width

A

Lengthwise Shearing

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7
Q

In this type of chip , this is used for ductile work materials with high cutting speeds

A

Continuous

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8
Q

___ is used to create a round hole, usually by means of a rotating tool (drill bit) that has two cutting edges

A

Drilling

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9
Q

Removes large amounts of material from starting workpart

A

roughing

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10
Q

Material removal by a sharp cutting tool

A

Machining

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11
Q

Rotating multiple-cutting-edge tool is moved slowly relative to work to generate plane or straight surface

A

Milling

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12
Q

Tool-chip friction causes portions of chip to adhere to rake face

A

Continuous chip with Built-up Edge

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13
Q

Sheet metal forming is considered to be secondary processing

True or False

A

True

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14
Q

___ refers to the plastic deformation of metals about a linear axis with little or no change in the surface area

A

Bending

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15
Q

Turning is performed on the inside diameter of an existing while boring is performed on the outside diameter of an existing cylinder
True or False

A

False

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16
Q

A contour is progressively cut by producing a series of overlapping slits or notches

A

Nibbling

17
Q

It is a continuous form of three-point bending

A

roll bending

18
Q

Opposite of bending is ___

A

Straightening

19
Q

Most effective on tool materials that are most susceptible to temperature failures

A

Coolants

20
Q

Fracture and tearing begin at the strongest point and proceed progressively or intermittently to the next-weakest location
True or False

A

False

21
Q

Piercing a large number of closely spaced holes

A

Perforating

22
Q

The basic components of a piercing and blanking die set are: die , stripper plate and ___

A

punch

23
Q

Bar folders make bends in heavier sheets or more complex bends in thin material

A

False, Press Brakes

24
Q

Specialized Engine lathe with greater accuracy.

A

toolroom

25
Q

Piercing operation that forms either a line cut or hole

A

Lancing

26
Q

Single point cutting tool removes material from a rotating workpiece to form a cylindrical shape

A

turning

27
Q

The basic form of peripheral milling in which the cutter width extends beyond the workpiece on both sides

A

Slab milling

28
Q

It is a bending operation that can be used to join the ends of sheet metal in some form of mechanical interlock

A

seaming

29
Q

Various energy forms other than sharp cutting tool to remove material

A

Nontraditional processes

30
Q

The piece being punched out becomes the workpiece

A

Blanking

31
Q

Tool is fed radially into rotating work at some location to cut off end of part

A

Cutoff

32
Q

It is a process by which a metal strip is progressively bent as it passes through a series of forming rolls

A

roll forming

33
Q

Most common type of lathe

A

engine lathe

34
Q

The piece being punched out becomes the workpiece and pressure pads are used to smooth edges in shearing

A

Fine Blanking

Material Science - Midterm (4 decks)

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