2results about How to "Realize integrated forming" patented technology

This invention discloses an Al-Bi-Sn immiscible alloy and its rotational deposition solid-state additive manufacturing method, belonging to the fields of metal composite materials and solid-state additive manufacturing technology. In this invention, the Al-Bi-Sn immiscible alloy is, by atomic percentage (at.%), Al 100‑x‑ y Bi x Sn y The alloy is prepared by rotational deposition solid-phase additive manufacturing method, where x = 8~15, y = 7~20, and x+y = 15~35. By controlling the component ratio and microstructure, the present invention achieves uniform composite of BiSn solid solution matrix and Al phase particles, with no particle agglomeration, high density, and excellent hardness and self-lubricating wear resistance, which can directly meet the application requirements of lightweight wear-resistant components such as automotive bearings and dry friction bearings.

This invention relates to the field of fiber-reinforced composite preform weaving and forming, specifically to an automated compaction device and method for weaving and forming three-dimensional preforms. The device comprises a guide array, upper and lower perforated plates, and a bidirectional steel frame. The weaving and forming method of this invention includes the following steps: designing the guide array and preform process parameters, and arranging the guide array; raising the upper perforated plate and inserting the steel frame to fix the guide array; and compacting the fibers layer by layer in the guide array to ultimately form a three-dimensional preform. Compared to existing technologies, this invention, by inserting a bidirectional steel frame, achieves automated needle alignment and preform densification compaction during the compaction process, thereby improving the automation level of the weaving process.