Safran has patented a method for creating a wax model for parts with cavities. The process involves arranging ceramic core elements in a wax mold, assembling them with a staple, and injecting wax around the cores to form the model. The staple design ensures stability during wax injection. GlobalData’s report on Safran gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Safran, Photovoltaic drones was a key innovation area identified from patents. Safran's grant share as of June 2024 was 66%. Grant share is based on the ratio of number of grants to total number of patents.
Method for making wax models using ceramic core elements
The granted patent US12042847B2 outlines a method for creating a wax model used in the manufacturing of parts with cavities, specifically targeting components like turbine vanes. The process begins with the arrangement of at least two ceramic core elements within a wax mold, designed to complement the shape of the intended cavity. These core elements are assembled using a staple that features a central portion and two branches, which are inserted into orifices in the core elements. Notably, one of these orifices is an open-through type, allowing the staple's branch to be secured by folding over the core element, ensuring stability during the subsequent wax injection process.
In addition to the primary method, the patent also describes variations, such as the use of glue to secure the staple branches within their respective orifices and the specific design of the staple with a circular cross-section. The method culminates in the creation of a shell mold from the wax model, followed by the elimination of the wax and the casting of molten metal into the shell mold. This innovative approach is particularly applicable for manufacturing turbine components, including both rotating turbine vanes and turbine stator vanes, enhancing the efficiency and precision of the production process.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
