2results about How to "Improve stamping formability" patented technology

The application discloses a micro-nano structure coupling distribution multi-process synergistic regulation method of an aluminum alloy plate and belongs to the field of aluminum alloys. The method comprises the following steps: preparing an aluminum alloy, melting the alloy by using a medium-frequency induction furnace under non-vacuum conditions, and pouring the alloy into a water-cooled steel mold for cooling; subsequently, sequentially performing high-temperature heat treatment to optimize solute element distribution, hot rolling deformation, high-temperature heat treatment to regulate micron-scale precipitated phase distribution, room-temperature cold rolling or ultra-low-temperature deep rolling deformation + intermediate annealing + room-temperature cold rolling or ultra-low-temperature deep rolling deformation to a final thickness, short-time high-temperature solid solution + quenching treatment; and finally, performing long-time low-temperature heat treatment to regulate nano solute atom cluster distribution. The method can effectively control the size and distribution of grains and precipitated phases in the alloy, has a significant promoting effect on the forming performance of the alloy, and can greatly improve the coordinated deformation ability of grains of different sizes and different microzones in a stamping deformation process, so that the stamping forming performance of the alloy is excellent; and the method is very suitable for manufacturing of automobile aluminum alloys.

This invention provides a pressure-stabilizing stamping die device for processing automotive parts, belonging to the technical field of automotive parts processing molds. The device includes an upper die plate, a lower die plate, a bottom support plate, an upper die assembly, and a lower punch assembly. A first nitrogen spring, a second nitrogen spring, and a third nitrogen spring are fixed on the bottom support plate. The first nitrogen spring is located at both ends of the bottom support plate, with its upper end connected to both ends of the upper die plate. The upper end of the second nitrogen spring passes through a drawing and pressing plate and abuts against a wear-resistant block. The first and second nitrogen springs are connected by an air pipe. The upper end of the third nitrogen spring is connected to the lower end of the drawing and pressing plate. Connecting the first and second nitrogen springs through the air pipe enables coordinated adjustment of the stamping pressure. When the downward pressure of the upper die plate is too high, nitrogen can flow between the two nitrogen springs, reducing the pressure of the corner pressure plate in the reverse direction, effectively preventing the material from failing to flow into the cavity due to excessive pressure.