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Extrusion

Extrusion Process Flow

  • Die Preheating

    Die Preheating

  • Billet Preheating

    Billet Preheating

  • Extrusion

    Extrusion

  • Quenching Heat Treatment

    Air Cooling Treatment

  • Straightening

    Stretching

  • Cutting

    Cutting Length

  • Artificial Aging Heat Treatment

    Temperature & Time Control

  • Final Inspection

    Dimensional & Visual Inspection

  • Packaging

    Packaging Specifications

  • Delivery

    Shipment

Detailed AL Extrusion Process Flow

Process Equipment Name Photo Control Item Detailed Description
Symbol Process Name Product Operation
1 Raw Material Inbound
(Billet)

AL6063

AL6061

 Pallet

Verify the chemical composition of the raw material

Ensure there is no bending or warping of the material

Confirm there is no contamination or foreign material present

Check for any other deformation or defect

Receive and inspect raw materials in accordance with the customer’s required quality and specifications
2 1.Billet Preheating
2.Die Preheating 		1.Billet Furnace
2.Die Furnace
1.Ensure No Warping

Verify alloy composition

2.Check Die Number

(drawing specifications)

 1.Set Billet Heating Temperature

450~500℃

Duration: 20 minutes ± 5 minutes

2.Set Die Heating Temperature

480℃±20

 1.Preheating raw material for extrusion forming
2.Preheating the die to prevent interference between material and tooling
3 Extrusion (Cooling) Extrusion Press

Verify extruded shape against drawing specifications

Extrusion Temperature (430℃)

Speed (5.8~6.6)

Perform extrusion and cooling in accordance with design specifications
4 Straightening / Cutting 1.Straightener
2.Cutting Machine
1.Check product cooling condition and flatness
2.Verify compliance with customer specifications 		1.Inspect the condition of the straightener press unit
2.Check saw blade and stopper condition

Cutting operation performed to maintain the shape of the extruded profile and prepare for heat treatment
5 Heat Treatment Aging Oven

Hardness Verification
Rockwell (65~75)
Webster (11~13)

Temperature / Duration
AL6063
Temperature: 195℃
Time: 270 minutes

Heat treatment process designed to maintain the hardness required by the customer

  • Extrusion Equipment One 2,000-ton press

  • Extrusion Equipment Two 1,350-ton presses

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