研究目的
Investigating the possibility of laser heat hardening to improve the wear resistance of the impact stamp tool used in the fasteners production by methods of cold forming.
研究成果
Laser heat hardening significantly increases the wear resistance of tool steels used in cold-forming fasteners. The treatment is most effective with specific parameters and materials, showing up to 44% increase in tool wear resistance.
研究不足
The study was limited to specific tool steels and laser treatment parameters. The effectiveness of laser hardening may vary with different materials and conditions.
1：Experimental Design and Method Selection:
The study involved laser heat hardening of tool steels (R6Mo5Co5) to analyze its effect on wear resistance. The methodology included laser treatment with a CO2 gas laser, followed by structural and phase transformation analysis.
2：Sample Selection and Data Sources:
Samples of tool steels used in the production of fasteners were selected. The study was conducted at OJSC "Normal" using cold-forming machines.
3：List of Experimental Equipment and Materials:
CO2 gas laser with 10.6 μm radiation wavelength, scanning electron microscope VEGA TS5130, PMT3 microhardnesser.
4：6 μm radiation wavelength, scanning electron microscope VEGA TS5130, PMT3 microhardnesser.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: Laser treatment was performed with specific parameters (radiation power, treatment rate, spot diameter). Post-treatment, the microstructure and microhardness were analyzed.
5：Data Analysis Methods:
The microstructure was studied using scanning electron microscopy, and microhardness was measured to evaluate the hardening effect.
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