Pressler vacuum hot stamping technology

Pressler independent research and owns the proprietary intellectual property rights: CN109827435A, CN109772980A, CN109365604A

      The core of Pressler's vacuum hot stamping technology is to create an oxygen-free and high nitrogen-protected environment for the entire process of heating and hot-pressing quenching of the metal sheet, and to prevent the metal sheet from being extremely easy to occur during the heating process. Oxidation phenomenon, this technology can be widely used in automotive hot-pressed parts, aircraft industry titanium formed parts, and other metal hot-pressed processing fields.

       For automotive hot-pressed parts, this process realizes bare-board heating, which is widely applicable to the production of bare-board hot-pressed parts such as bare door knockers, laser tailor-welded plates, and unequal thick plates. There is no need for shot blasting after hot pressing. The realization of the use of bare boards to produce the overall door knocker, laser tailor-welded board, unequal thickness of the plate in the shot blasting process, thereby greatly reducing the current type of such parts can only be brought about by aluminum-silicon coated board production The current situation of high raw material prices and high laser tailor welding prices has greatly reduced the application threshold of the overall door knocker. For the processing of titanium metal and magnesium metal, through the implementation of this technology, higher productivity and mass production efficiency can be achieved.

       At the same time, for the aluminum-silicon-coated sheet materials currently commonly used in the automotive industry, although the hot-pressed materials have good strength, they have poor toughness. We use unique post-molding methods for parts after vacuum hot-pressing. Processing technology can greatly improve the toughness of parts. And good toughness and strength can make the vehicle more flexible collapse during high-speed impact, lengthen the point in time when the vehicle's impact energy is transmitted to the occupant, and minimize the transmission of energy to the occupant, thereby further protecting the Safety.

       The morphological changes of three materials under high-speed impact from the perspective of a high-speed camera: