Grinding Flashcards
what are abrasive processes
material removal due to abrasive particles usually bonded on a wheel
what are the 5 common abrasive processes
honing
lapping
superfinishing
polishing/buffing
grinding
what is grinding
material removal process acomplied by abrasive particl ws rotating at very high speeds
what are the 2 parts of a gring=ding wheel
abrasive particles
bonding material
what are the 5 grinding whee parameters
abrasive material
grain size
bonding material
wheel structure
wheel grade
what are the general prperties of the abrasive material used on a grinding wheel
high hardness
wear resistance
toughness
friability
what is friability
the capability of the material to fracture when cutting edge becomes dull
what are the 4 main types of abrasive material
aluminum coxide
silicon carbide
cubic boron nitride
diamond
what is the purpose of a wheel grade
indicates bond strength in retaining abrasive grits during cutting
what is the peices of: A- 46- H- 6- V
A- abrasive material
46-Grain size
H- grade
6tructure
V-bond type
What are the 5 types of grinding
creep feed
centerless
cylindrical
Blanchard
surface
what is surface grinding used for
grinding plain flat surfaces
how is blanchard grinding used
the workpeice and the rotate at the same time
what is cylindrical grinding used for
rotational parts
what is centreless grinding
alternative method used of r grinding external cylindrical surfaces
what are the 5 ways toreduce grinding tempurature
decrease depth of cut
reduce wheel speed
dress the wheel
reduce number of active grits per in^2
use grinding fluid
what is honing
abrasion process preformed by a set of bonded abrasive sticks
what is Lapping
uses fluid suspension of very small abrasive particles between workpeice and tool
what is superfinishing
similar to honing but stick is pressed against the surface in a reciprocating motion
what is polishing used for
removing scuffs and burrs and to smooth rough surfaces
what is buffng used for
provides smoother surface then polishing due to softer wheel
