Machining
Common model used for orthogonal cutting
Merchant model
Type of process with large plastic deformation where elastic recovery is negligible
Bulk deformation forming
Casting tend to produce this type of microstructure.
Polycrystalline
Strengthening of alloy using dislocations
Work hardening
Process where material is pushed through a shape dhole to impart shape
Material extrusion
Machining process where the tool spins
Milling
Type of process that uses sheets where plastic and elastic strains are comparable
Sheet metal forming
Casting process that uses an expendable mold and permanent pattern
Sand casting
Polymers that can be remelted
Thermoplastic
Pre-deposited powder particles joined together using a thermal source
Powder bed fusion
Tool life ____ with increased cutting speed
Decreases
In annealing, removal of dislocations in the crystal structure that results in reduced stored energy
Recovery
Casting process that uses an expendable mold and expendable pattern
Investment casting, lost was/foam
Bonding for ceramics
Ionic/covalent
Objects produced from consolidation of material dispensed from printhead
Material jetting
Two type of milling we discussed that result in different surface finishes.
Conventional, climb
Elastic return of sheet metal after deformation
Springback
Fractures that occur in casting during solidification due to thermal contraction of dendrite networks
Hot cracking
Strengthening of alloys using second phase particles
Precipitation hardening (age/dispersion)
Objects produced by melting materials as they are being deposited
Directed energy deposition
Four types of chips in machining
Continuous, built-up edge, serrated/segmented, discontinuous
Term that describes the ease with which a material can be shaped via plastic deformation
Workability
Equation used to calculate solidification time for casting
Chorinov’s rule
Two types of point defects
Vacancies, interstitials, impurity
Objects produced by hardening liquid polymer using light
Vat photopolymerization