Manufacturing Process for Aluminum Cast Products

Overview of the Sand Mold Casting Process

Overview Diagram of the Sand Mold Casting Process

Typical Manufacturing Process

(1) Wooden Mold Fabrication

A wooden or resin master mold is first created for making the sand mold.


(2) Sand Mold Formation

Sand is packed around the mold created in the previous step to form the sand mold.


(3) Assembly and Alignment

The individual sand molds are assembled and fitted together to form the full mold.


(4) Pouring

Molten metal is poured into the assembled sand mold to form the desired shape.

Overview of Forging Process(using Hydraulic press)

Overview Diagram of Forging Process(using Hydraulic press)

Typical Manufacturing Process

Closed-Die Forged Products

(1) Cutting

The material is cut to the specified size.


(2) Die Forging

Die forging:
A forging method in which a die with a product-shaped cavity is used to form the material.
This process yields consistent quality and dimensions, and minimizes additional machining.


(3) Deburring

Excess material (flash) produced during forging is trimmed off.


(4) Heat Treatment

The part undergoes a specific heat treatment process to achieve the desired product characteristics.

Hand Forged Products

(1) Hand Forging

Hand forging:
This forging method begins by shaping the material into a square on a flat anvil, then forming it into a cylindrical or block shape to meet the required dimensions.
Since no die is required, it is suitable for large parts or low-volume production.


(2) Cutting

The material is cut to the specified size.


(3) Machining

We operate our own in-house machining processes, using machine tools to cut and grind each workpiece.


(4) Heat Treatment

The part undergoes a specific heat treatment process to achieve the desired product characteristics.

Ring Forged Products

(1) Hand Forging

Hand forging:
This forging method begins by shaping the material into a square on a flat anvil, then forming it into a cylindrical or block shape to meet the required dimensions.
Since no die is required, it is suitable for large or low-volume parts.


(2) Cutting

The material is cut to the specified size.


(3) Ring Rolling (Ring Forging)

A type of hand forging in which a hole is formed in the center of a cylinder, and then the material is expanded outward.
Because large tubular shapes can be formed without drilling a large hole in the center, this reduces material losses both during manufacturing and later when customers would otherwise need to bore and cut the material.


(4) Machining

We operate our own in-house machining processes, using to machine tools to cut and grind each workpiece.


(5) Heat Treatment

The part undergoes a specific heat treatment process to achieve the desired product characteristics.

Overview of the Machining Process

Overview Diagram of the Machining Process
(1) NC Program Creation and Simulation

NC programs are created and verified through self-checks and double checking. Product, jig, and machine tool models are used to simulate the machining process on a PC.


(2) Machining

Cutting tools are used to cut and grind the part. We operate multiple machine tools, each suited to different types of operations.


(3) Hand Finishing

Certain products are finished by hand using tools.
(Examples: chamfering, polishing, buffing, scratch correction, welding, and cleaning)


(4) Inspection

Dimensional inspection, appearance checks, pressure resistance testing, and leak testing are conducted.


(5) Shipping

After packaging, products are shipped to the customer.

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