Recently, auto parts companies in the United States, Europe, Japan, and South Korea have adopted a steel manufactured using a new process method (hydraulic forming technology). According to reports, this technology can reduce the production cost of parts by 15% and reduce the weight by about 30% compared with the traditional automotive steel processing technology.
In order to meet the needs of auto and parts companies to reduce production costs, save raw material consumption, improve performance and quality, and achieve the goal of lightweighting automobiles, steel companies have vigorously developed and adopted hydraulic forming technology to produce automotive parts steel.
In the U.S. market, the hydroformed steel needed for automobile production grows at a rate of 20% every year, and the demand growth rate in Japan reaches 18%. In countries such as Germany, France and Italy in Europe, the demand for hydroformed steel is 15% per year. The speed of growth.
South Korean auto parts companies have also begun to use this new process of processed steel. Modern Hyundai Motor's Hyundai Steel Pipe Co., Ltd. last year completed the hydroformed steel production line. It has now started trial production and will be mass-produced next May; Posco recently invested US$38 million in Kwangyang Steel Works to build a steel production line for hydraulically-formed vehicles. It is scheduled to be completed in March next year, and the annual output will provide steel for the production of more than 1 million automobile parts. Hyundai, Kia, GM Daewoo and Ssangyong will all purchase steel from here.
The steel processing technology used for hydroforming vehicles has many advantages. There are more than 20,000 parts and components required for automobile manufacturing. These parts require steels of different specifications and thicknesses. The basic technology of the steel plate hydraulic processing technology is: the steel is not made into a plate shape, but is made into a cylindrical pipe shape, and then high-pressure water is injected into the pipe, and the steel is evenly subjected to the pressure of water by the force of high-pressure water. With a wide range of components, the thickness of the steel components and the strength of the external forces are balanced to achieve the same degree of all parts.
This is an advanced technology that is completely different from the traditional automotive steel processing technology. One component is completed at one time, so the production cost can be reduced.
Yin Changwan, deputy general manager of South Korea's Pohang Iron and Steel Co., Ltd. recently said in an interview: “Pohang’s production capacity of hydraulically-formed automotive parts steel will increase 2-3 times in the future, and it will be exported to Chinese automobile manufacturers in the future. Processed automotive parts."
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