研究目的
Investigating the hybrid forming method of stamping dies for automobile panels combining digital patternless casting and high-power laser cladding to meet the requirement of manufacturing dies quickly and economically.
研究成果
The laser hybrid manufacturing method combines digital patternless casting and high-power laser cladding, offering significant advantages in terms of cost, production efficiency, and environmental impact. The technology is suitable for the rapid manufacturing of stamping dies for automobile panels, with the cladding layer exceeding HRC60 in hardness and showing excellent wear resistance and mechanical properties.
研究不足
The study focuses on the hybrid forming of stamping dies for automobile panels, and the applicability to other types of dies or materials is not explored. The environmental support system of AM metal forming may limit the size of forming parts and entail high manufacturing costs.
1：Experimental Design and Method Selection:
The study combines digital patternless casting and high-power laser cladding for the hybrid forming of stamping dies.
2：Sample Selection and Data Sources:
The experimental materials included casting sand, substrate material (as-cast 45 steel), and laser cladding powder (Fe-Ni-Cr-B-C alloy powder).
3：List of Experimental Equipment and Materials:
Equipment used includes a five-axis handling system with a diode laser system, a coaxial powder feed nozzle, and a disc-based feeding system. Materials include resin sand, 45 steel, and Fe-Ni-Cr-B-C alloy powder.
4：Experimental Procedures and Operational Workflow:
The process involves digital patternless casting of the insert substrate followed by shape-following laser cladding of the insert profile.
5：Data Analysis Methods:
Tensile tests, hardness tests, and metallographic measurements were conducted to analyze the mechanical properties and microstructure of the cladding layer.
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