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The latest development of precision blanking technology at home and abroad is summarized

2023/07/03

Fine blanking status:

1. Strong blanking and fine blanking

As we all know, fine blanking technology is an advanced technology developed on the basis of general punching. The fine blanking we are talking about today is strong edge fine blanking. Its process principle is: on the three-action press, with the help of a special structure of fine punching die, under the action of strong force, the material produces plastic-shear deformation, so as to obtain High quality fineblanked parts. Its appearance has fundamentally changed the metal material processing process chain. Therefore, fine blanking is by no means an alternative processing method, but a high-quality, high-efficiency, high-value-added processing technology

 PS=punching force; PR=ring gear force; PG=back pressure.

1-concave die; 2-press plate; 3-punch die; 4-ejector.

2. Rapid expansion of the world fine blanking market

In the past 25 years, the fine blanking technology of strong blank holder has developed rapidly, which is mainly manifested in:

(1) More than 360 companies in about 45 countries around the world have adopted fine blanking technology.

(2) Fine blanking machine: about (3600~4000) units.

(3) Fine blanking parts: about 10,000 kinds.

(4) Fine punching die: 72% adopt continuous fine punching die.

(5) Fine blanking process: developing towards composite forming process.

3. China's fine blanking market is advancing steadily

  In 1976, China and Feintool Company started the exchange of fine blanking technology, and Feintool Company provided fine blanking technology training materials to my country for the first time, creating a history of introducing fine blanking machines in my country. In the 1990s, fineblanking technology began to be popularized and applied in the automotive industry. In 1994, the United Nations aided in the construction of my country's fine blanking technology service center.

Current status of fine blanking market in China:

The application of fine blanking technology in China is in a stage of rapid development. According to the "National Industrial Technology Policy", this technology is a high-tech and industrialization development direction supported by the state. Therefore, for a long period of time, the fine blanking technology industry can Supported by national policies. At present, fine blanking technology has gradually expanded from the initial watch and camera industries to machinery manufacturing.

The introduction of foreign fine blanking technology:

my country introduced Feintool's fine blanking hardware and software in 1985 and 1992, and conducted personnel training to basically familiarize with and master the fine blanking process principle, mold design and manufacturing, and fine blanking production process.

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