Methods for designing structural components, methods for fabricating steel plates, methods for fabricating customized sheet metal, methods for manufacturing structural components and structural assemblies.

TH2301007886APending Publication Date: 2026-07-06NIPPON STEEL CORPORATION
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Patent Information

Authority / Receiving Office
TH · TH
Patent Type
Applications
Current Assignee / Owner
NIPPON STEEL CORPORATION
Filing Date
2022-08-03
Publication Date
2026-07-06

AI Technical Summary

Technical Problem

The challenge in the automotive industry is to reduce the weight of automobile bodies while maintaining strength, particularly in the use of high-strength steel plates for hot stamping, where aluminum plating in tailored blanks leads to reduced weld strength due to increased aluminum concentration and decreased hardenability, and existing methods for removing aluminum plating are time-consuming.

Method used

A method for designing structural members that involves numerical simulation to identify high-risk fracture areas in tailored blanks, allowing for targeted removal of aluminum plating only in specific regions, thereby maintaining weld strength and reducing the time required for plating removal.

Benefits of technology

This approach enhances the structural integrity of automotive components by maintaining weld strength in high-load areas while shortening the time and extending the tool life for plating removal, thus improving manufacturing efficiency.

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Abstract

DEPCT6729 / 02 / 2567 This structural component design methodology is a method for designing components. The structure is obtained by creating a sheet of workpiece with modified methods, including steps for defining welds. In performing collision analysis using numerical simulation on the analytical model of... Structural components and weld placement in a manner that considers the fracture index of the first region. Equal to or greater than the specified value and the fracture index of all remaining areas except the first area. Less than the specified value and the elimination procedure in the zoning that includes the section. This corresponds to the area at one of the welded ends that is the removed area, where the exposed part is exposed. It is created after the weld definition process;
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