Manufacturing Process of Screws

About the manufacturing process of screws

Fujita manufactures various precision fasteners for different environments by leveraging cold forging and cutting technologies that have been cultivated over many years. We deliver high quality products by investigating the most appropriate processing method for each customer’s needs.

冷間圧造

Cold forging is a method of forming metal materials by placing them in a mold at normal temperatures and applying pressure. It is suitable for mass production because of its characteristics shown below.
・ Can obtain higher strength compared to a cutting processing.
・ Does not produce waste chips.
・ Creates stable dimensions because the metal is formed within the mold.

切削加工

Thread rolling is a type of plastic working in which a blank (the material being worked) is rolled between opposing dies. Its characteristics are shown below:
・ Produces few chips.
・ Fast production speed.
・ Superior precision, surface finish and strength.


Manufacturing processes of a screw

We develop and manufacture products with high functionality and excellent cost performance by combining plastic working with various types of secondary processes.
An example of the manufacturing processes for a screw product is shown below.

 

Specialty shapes created by Fujita technology

■ Creating difficult shapes

Products with difficult shapes are created using the latest forging machines.

FORMAX PLUS parts former made by National Machinery

 

■Specialty shapes
Specialty-shaped products made with Fujita technology.

■ Pressure forging + cutting
Combination of forging and cutting processing enables the manufacturing of high precision products.

■ Split molding
Split molding allows the forging of shapes that would normally require a combination of forging and cutting processing.