Chapter 26 Flashcards
1
Q
Describe Grinding
A
Grinding is a chip removal process using individual abrasive grain as cutting tool
- high cutting spd
- negative rake angle
2
Q
When Grinding process is undergone?
A
When producing high dimensional accuracy/fine surface finish. Finishing process for hard/heat treated parts
3
Q
Bond type
A
Vitrified - glass, brittle
Resinous - thermosetting resin, flexible, resistant to high heat
Reinforced wheel - layer of fiberglass, prevent breakage
Rubber - flexible, inexpensive
Metal - strength, ductility, most inexpensive
4
Q
What happens when temp rises during grinding
A
Tampering/soften workpiece
Burn ground surface
Crack
Prevention - coolant, reduce V, increase v.
5
Q
Problems with grinding
A
Sparks
Tempering
Burning
Heat checking
