Parameter study and process control on laser cladding for direct manufacturing of 3D metallic structures

Aubry, Pascal; Guiraud, Mehdi; Malot, T.; Verdier, Kevin

doi:10.2351/1.5061013

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2008

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“…Research has been carried out in the past on melt-pool temperature monitoring 1,3,6 using infrared pyrometers. Others have monitored the process using CMOS or CCD cameras 3,7,8 or an infrared photodiode 9 . Song and Mazumder showed that both the meltpool temperature and area had similar trends, and that the overshoots and noise of the temperature signal were smaller than those of the camera signal 3 .…”

Section: Introductionmentioning

confidence: 99%

Fibre laser metal deposition with wire: parameters study and temperature monitoring system

et al. 2008

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This paper addresses the development of a laser metal deposition process which consists of a 2 kW Fibre Laser, a CNC table, a wire feeder and a temperature monitoring system. During its development, six infrared pyrometers were tried to compare their performance. The system utilizes two pyrometers to measure both the melt-pool and workpiece (upper layer) temperatures. Experiments have been performed to study the metal deposition parameters with stainless steel 308L wire deposited on stainless steel 304, and good quality metal deposition has been achieved. The results of the parameters study and the development of the temperature monitoring system are presented.

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Section: Introductionmentioning

confidence: 99%