Manufacturing Process ,GNU Mechanical Engineering

○ Introduction About Company

○ Product

○ Process of Product

경남 사천시용현면 선진리번지

Specialization area

Precision Cool Forging Powder Injection Molding

Precision Mold Process Measurement & Material Testing

Bevel Gear – Main Product

Axial Changed

Mold Design Making Mold Heat Treatment Lubriation

Forging Heat Treatment Checking

GTIC’s Bevel Gear

(Design to CAD)

GTIC’s Bevel Gear

(Analysis to AFDEX)

• Reduce the cross‐section of a road,

wire or tube by pulling it through a drawing die

Drawing

Cutting material same length

Why DO Heat Treatment?

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

Die Forging is hammering a part

between two flat faces

- Fast - Dangerous

- Cheap - Damage to mold

- Increase Machinability - Decrease elongation

- Increase Precision - Brittle

Forging( In GTIC Factory)

Advantage

1 Surface hardness

2 Easy to control

3 Improve Wear resistance

1 Quenching 2 Tempering

3 Normalizing 4 Annealing

Finite Elements Method

(By AFDEX Program)

Measuring

(Inner, outter diameter)

Thank You