研究目的
Investigating the effect of laser patterning on the strength enhancement and material behaviour of 22MnB5 steel sheets, focusing on line and geometrical laser patterning to adaptively tailor strength variations and formability.
研究成果
Close-type laser patterning (0°, auxetic, honeycomb) significantly enhances strength and bending resistance in 22MnB5 steel sheets without compromising springback characteristics. This method offers a promising approach for adaptive strength tailoring in automotive and other industrial applications.
研究不足
The study focuses on specific laser patterning types and their effects on 22MnB5 steel sheets, potentially limiting generalizability to other materials or patterning methods. The experimental setup and analysis may require optimization for broader applications.
1：Experimental Design and Method Selection:
Utilized a fibre laser source for laser patterning on 22MnB5 steel sheets to study the effect of different patterns (0°, 45°, 90°, auxetic, honeycomb) on material behavior.
2：Sample Selection and Data Sources:
22MnB5 steel sheets with a thickness of
3：0 mm were used, with tensile and 3-point bending tests conducted to evaluate performance. List of Experimental Equipment and Materials:
Fibre laser source (IPG Photonics’s YLR-1070 series), 6-axis robot arm (Abson’s C8-A901 standard type), digital image correlation (DIC) technique (ARAMIS 3D system).
4：Experimental Procedures and Operational Workflow:
Laser patterning was applied to specimens, followed by tensile and 3-point bending tests to assess in-plane and out-of-plane deformation behaviors.
5：Data Analysis Methods:
FEM analyses with ABAQUS/Standard were conducted to simulate stress distribution and deformation behavior, supported by experimental data.
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