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Manufactoring > Grinding > Flashcards

Grinding Flashcards

1
Q

what are abrasive processes

A

material removal due to abrasive particles usually bonded on a wheel

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2
Q

what are the 5 common abrasive processes

A

honing
lapping
superfinishing
polishing/buffing
grinding

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3
Q

what is grinding

A

material removal process acomplied by abrasive particl ws rotating at very high speeds

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4
Q

what are the 2 parts of a gring=ding wheel

A

abrasive particles
bonding material

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5
Q

what are the 5 grinding whee parameters

A

abrasive material
grain size
bonding material
wheel structure
wheel grade

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6
Q

what are the general prperties of the abrasive material used on a grinding wheel

A

high hardness
wear resistance
toughness
friability

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7
Q

what is friability

A

the capability of the material to fracture when cutting edge becomes dull

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8
Q

what are the 4 main types of abrasive material

A

aluminum coxide
silicon carbide
cubic boron nitride
diamond

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9
Q

what is the purpose of a wheel grade

A

indicates bond strength in retaining abrasive grits during cutting

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10
Q

what is the peices of: A- 46- H- 6- V

A

A- abrasive material
46-Grain size
H- grade
6tructure
V-bond type

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11
Q

What are the 5 types of grinding

A

creep feed
centerless
cylindrical
Blanchard
surface

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12
Q

what is surface grinding used for

A

grinding plain flat surfaces

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13
Q

how is blanchard grinding used

A

the workpeice and the rotate at the same time

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14
Q

what is cylindrical grinding used for

A

rotational parts

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15
Q

what is centreless grinding

A

alternative method used of r grinding external cylindrical surfaces

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16
Q

what are the 5 ways toreduce grinding tempurature

A

decrease depth of cut
reduce wheel speed
dress the wheel
reduce number of active grits per in^2
use grinding fluid

17
Q

what is honing

A

abrasion process preformed by a set of bonded abrasive sticks

18
Q

what is Lapping

A

uses fluid suspension of very small abrasive particles between workpeice and tool

19
Q

what is superfinishing

A

similar to honing but stick is pressed against the surface in a reciprocating motion

20
Q

what is polishing used for

A

removing scuffs and burrs and to smooth rough surfaces

21
Q

what is buffng used for

A

provides smoother surface then polishing due to softer wheel

Manufactoring (9 decks)

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