研究目的
To examine the effect of increased cooling to reduce edge effects in laser forming.
研究成果
Simulations and experiments show no impact on the edge effects from increased cooling, neither beneficial nor detrimental. The natural variability in the samples is relatively large, and the effect of cooling on edge effects may have coupling effects with several process parameters.
研究不足
The natural variability in the samples is relatively large, and there is low repeatability of the experiments. The effect of cooling on edge effects may have coupling effects with several process parameters.
1：Experimental Design and Method Selection:
The study uses simulations with increased levels of convection to simulate higher cooling at the surface and experiments with increased levels of forced air-cooling and an attempt with forced CO2 cooling.
2：Sample Selection and Data Sources:
A flat plate of dimensions 55 x 50 x
3：5 mm made of AISI 304 / EN 4301 is used. List of Experimental Equipment and Materials:
Equipment includes IPG YLS-3000 SM laser, HighYag processing head, Q-sys XY-positioning, and Zeiss Contura 7/10/6 coordinate measuring machine.
4：Experimental Procedures and Operational Workflow:
A single laser scan pass was done at the workpiece with varying cooling methods. The bend angle was measured using a coordinate measuring machine.
5：Data Analysis Methods:
The edge effects are calculated using the variance, σ, and ratios Rx=0 and Rx=50.
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IPG YLS-3000 SM
YLS-3000 SM
IPG
Laser used for forming shapes with a laser.
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Zeiss Contura 7/10/6
Contura 7/10/6
Zeiss
Coordinate measuring machine used to measure the bend angle.
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HighYag
Modified
HighYag
Processing head for laser forming.
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Q-sys
Q-sys
XY-positioning system for laser forming.
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