On April 4, Japan's JFE Steel Corporation and German steel manufacturer ThyssenKrupp jointly launched 980 MPa and 1180 MPa high-strength steel plates for body-in-white cold-formed parts.
It is reported that compared with the traditional high-strength steel plate, the product has higher ductility, especially excellent local ductility, which helps to realize the lightweight of automobile body frame and has higher crash safety performance. At the same time, the product can be processed by the traditional cold forming process, rather than making complex-shaped parts by the hot forming process, which is beneficial to help customers improve production efficiency and reduce production costs.
The current market requires body-in-white design to take into account lightweight, energy saving, emission reduction, and higher crash safety. However, due to poor formability and ductility, high-strength steel sheets are difficult to use in the production of complex-shaped automotive parts. In order to solve this problem, JFE Steel and ThyssenKrupp designed a new composition system and microstructure, and adopted the Quenching & Partitioning process to meet the high local ductility of the body-in-white. It is reported that JFE Steel and ThyssenKrupp have applied for a patent for the product and its production process, which can be supplied to global automobile manufacturers.
