Laser microwelding has been an essential tool with a reputation of rapidity and precision for joining miniaturized metal parts. In\r\nindustrial applications, an accurate prediction of weld bead geometry is required in automation systems to enhance productivity of\r\nlaser microwelding. The present work was conducted to establish an intelligent algorithm to build a simplified relationship between\r\nprocess parameters and weld bead geometry that can be easily used to predict the weld bead geometry with a wide range of process\r\nparameters through an artificial neural network (ANN) in laser microwelding of thin steel sheet. The backpropagation with the\r\nLevenberg-Marquardt training algorithm was used to train the neural network model. The accuracy of neural network model\r\nhas been tested by comparing the simulated data with actual data from the laser microwelding experiments. The predictions of\r\nthe neural network model showed excellent agreement with the experimental results, indicating that the neural network model\r\nis a viable means for predicting weld bead geometry. Furthermore, a comparison was made between the neural network and\r\nmathematical model. It was found that the developed neural network model has better prediction capability compared to the\r\nregression analysis model.
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