Howmet Aerospace has patented an apparatus and method for fastening dissimilar materials like steel, plastic, and aluminum using resistance welding. The method involves placing materials together, using a multi-layered fastener, and applying electrical potential to weld the fastener to the materials. GlobalData’s report on Howmet Aerospace 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 Howmet Aerospace, Selective laser solidification was a key innovation area identified from patents. Howmet Aerospace's grant share as of May 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.
Resistance welding fastener for dissimilar materials
A recently granted patent (Publication Number: US11984691B2) discloses a method for fastening materials using electrical resistance welding. The method involves placing the materials together in physical contact, inserting an electrically conductive fastener between a pair of electrodes, applying an electrical potential to induce resistive heating, and welding the fastener to the materials. The first material is captured between the cap of the fastener and the second material after welding, ensuring a secure connection. Additionally, the method allows for welding multiple layers of material together and welding additional elements simultaneously with the fastener.
Furthermore, the patent also covers a method for fastening multiple materials using electrical resistance welding. In this method, a stack of materials is formed, and an electrically conductive fastener is used to weld the second material to the stack. The fastener is then used to weld the second material to a third material, with the first material being captured between the cap of the fastener and the second material after welding. The versatility of this method allows for fastening different types of materials, such as steel, and even attaching additional fasteners as the third material. This patented method offers a reliable and efficient way to fasten materials using electrical resistance welding, providing a strong and durable connection between the materials.
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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.
