What is Forging Process and How Does Forging Work

The metal forging process is a special manufacturing process. Its principle is to achieve the shape we need through high pressure, hammering, pressing, and pressing. The parts made by the forging manufacturing process have certain mechanical properties (including structure, conductivity, and life).

Usually, before processing, the raw metal materials are preheated to the required temperature for heat treatment. The forging process is completely different from the casting process, and the forged parts are never melted and poured.

Traditional metal forging parts include kitchen utensils, knives, cold weapons, hardware parts, copperware, etc. Nowadays, we combine forging more with precision CNC equipment to achieve higher strength and more precise forging parts.

forging steel parts

Forging Manufacturing Process Combined with CNC Machining

If your product requires very precise dimensions, such as bearing holes, we must CNC precision machining again after forging. AIXI has a lot of experience in CNC machining products after forging, and also has matching machines to complete the production.

Can You Forge Stainless Steel?

AIXI has extensive experience forging stainless steel and has produced a large number of stainless steel forged parts. Stainless steel is one of the most popular materials for forging, and it is highly strong, corrosion-resistant, and heat-resistant. After forging, its mechanical properties are also enhanced, resulting in a higher strength-to-weight ratio. This enables it to last longer in harsher, more corrosive, and extreme environments.

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Types of Forging Process

Impression Die Forging (Closed-die Forging)

Die forging refers to a forging method that uses a die to shape a blank on special die forging equipment to obtain a forging. The forged parts produced by this method are accurate in size, have a small machining allowance, are relatively complex in structure, and are highly productive. Therefore, it is particularly suitable for large quantities of stainless steel forgings.

Cold Forging

Cold forging is performed at a lower temperature, but most forging is hot forging. Cold forging includes many processes—bending, cold drawing, cold heading, stamping, extrusion, etc.—to produce a variety of part shapes. It is particularly suitable for shafts/axles/rods/bolts, with one of the two sides being round or having special shapes.

Open Die Forging

Free forging is a traditional forging method. It has the advantages of high flexibility and the ability to produce parts of various shapes, but the process complexity is high. It is ideal for processing large stainless steel and low-volume forging products.

Seamless Rolled Ring Forging(Seamless rolled forging)

Seamless rolled ring forging is usually achieved by punching holes in thick round metal sheets and then rolling and extruding the rings into thin rings. This forging technology is mainly used for various stainless steel forging rings, bushings, rollers, and flanges.

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Surface Treatments for Forged Stainless Steel

After forging, the surface of stainless steel is always very rough. After high temperature, its surface is slightly black, so we need to undergo appropriate surface treatment to restore the bright color of the stainless steel.

  • Sandblasting: Sandblasting can remove traces of forging and machining, making the surface of stainless steel look more uniform.
  • Pickling: Pickling can remove rusty surfaces and make the surface look smoother.
  • Passivation: Passivation can form a corrosion-resistant protective layer on the surface and delay surface corrosion.
  • Mirror polishing: After mirror polishing, the finish of the stainless steel surface will be greatly improved, and it will look like a mirror, but the cost will also be high.
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Metal Forging vs. Metal Casting

Advantages of Metal Forging

Metal forging and casting are two common processing methods. Casting is a process in which high-temperature molten metal is poured into a pre-made mold to cast parts.

Compared with casting, forging has the following advantages:

1. Stronger mechanical properties of the product

2. Cost-effectiveness and reliability

3. Forged parts can be better heat treated

4. Faster processing time and high production efficiency

Tolerance of Metal Forging Parts

Usually, the tolerance of metal forging parts is ±0.2mm. If special tolerance instructions are required, we can also perform precision forging according to the drawing tolerance. Of course, we can also combine CNC machining to achieve the required tolerance standard.

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Applications of Forging Process

Automotive

Aerospace

Energy

Defense

Tools and Machinery

Railway

Construction

Shipbuilding

Applications of Forging Process

Why Choose AIXI as a Metal Forging Service Supplier?

Why Choose AIXI as a Metal Forging Service Supplier

We have practical experience in forging projects and can provide complete services in one stop. AIXI has provided customers with a large number of stainless steel forging products.

Why Choose AIXI Metal Forging Service Supplier

AIXI has rich surface treatment technology, including sandblasting, pickling, passivation, polishing, and more. We also master a variety of metal forging methods.

Metal Forging Service icon

Our factory has a variety of processing equipment, lathes, and milling machines. We can provide secondary processing after forging.

Contact AIXI CNC machining facrory for the best CNC machining services & solutions.

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