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

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

20
Q

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

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.

25
Piercing operation that forms either a line cut or hole
Lancing
26
Single point cutting tool removes material from a rotating workpiece to form a cylindrical shape
turning
27
The basic form of peripheral milling in which the cutter width extends beyond the workpiece on both sides
Slab milling
28
It is a bending operation that can be used to join the ends of sheet metal in some form of mechanical interlock
seaming
29
Various energy forms other than sharp cutting tool to remove material
Nontraditional processes
30
The piece being punched out becomes the workpiece
Blanking
31
Tool is fed radially into rotating work at some location to cut off end of part
Cutoff
32
It is a process by which a metal strip is progressively bent as it passes through a series of forming rolls
roll forming
33
Most common type of lathe
engine lathe
34
The piece being punched out becomes the workpiece and pressure pads are used to smooth edges in shearing
Fine Blanking