PROCESS FOR MANUFACTURING A STEEL SHEET
A steel sheet composition and manufacturing process with controlled inclusions and hot stamping achieves high tensile strength and bending resistance, addressing premature cracking issues in automotive parts, enhancing safety and performance.
Patent Information
- Authority / Receiving Office
- BR · BR
- Patent Type
- Applications
- Current Assignee / Owner
- ARCELORMITTAL SA
- Filing Date
- 2024-04-25
- Publication Date
- 2026-07-07
AI Technical Summary
Existing high-strength steels used in automotive applications suffer from premature cracking under bending loads due to rapid crack propagation, compromising their structural integrity and safety, while also being challenging to produce with both high tensile strength and impact resistance.
A steel sheet composition and manufacturing process that includes specific chemical elements and controlled inclusion populations, combined with a hot stamping method, to achieve a tensile strength of at least 1300 MPa and a bending angle greater than 48° in the transverse direction, ensuring high mechanical properties and resistance to cracking.
The solution results in steel parts with enhanced mechanical strength, impact resistance, and improved safety by preventing premature cracking, suitable for automotive applications requiring high energy absorption and anti-intrusion capabilities.
Smart Images
Figure 00000000_0000_ABST