Manufacturing Process ,GNU Mechanical Engineeringma.gnu.ac.kr/course/mp/Company/Forging_GTIC.pdf ·...
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Transcript of Manufacturing Process ,GNU Mechanical Engineeringma.gnu.ac.kr/course/mp/Company/Forging_GTIC.pdf ·...
Specialization area
Precision Cool Forging Powder Injection Molding
Precision Mold Process Measurement & Material Testing
Spheroidizing annealing How to annealing
A1 transformation temperature
(4) Spheroidizing annealing
1 Quenching 2 Tempering
3 Normalizing 4 Annealing
Why do heat treatment(annealing)?
1 Product changed ductile
2 Low damage to mold
Maintenance Abrasion , corrosion
Prevent loss due to high temperature
Endure high shock , high weight
- Fast - Dangerous
- Cheap - Damage to mold
- Increase Machinability - Decrease elongation
- Increase Precision - Brittle
Advantage
1 Surface hardness
2 Easy to control
3 Improve Wear resistance
1 Quenching 2 Tempering
3 Normalizing 4 Annealing