Optical System for On-Line Monitoring and Temperature Control in Selective Laser Melting Technology

Author:

Doubenskaia Maria1,Pavlov Mikhail1,Chivel Yuri1

Affiliation:

1. Ecole Nationale d’Ingénieurs de Saint-Etienne (ENISE)

Abstract

A monitoring system is developed to visualize and to control the process of Selective Laser Melting (SLM) of metallic powder. The system is integrated with industrial PHENIX PM-100 machine. Visualization is carried out using LED illumination and CCD-camera; a home developed pyrometer is applied for monitoring of thermal phenomena in the zone of laser impact. Deviation of temperature from its optimal value is chosen as a criterion for the express method of quality control.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Reference9 articles.

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2. M. Doubenskaya, Ph. Bertrand, I. Smurov: Optical monitoring of Nd: YAG laser cladding. Thin Solid Films. 453-454C (2003), pp.477-485.

3. M. Ignatiev, I. Smurov, G. Flamant: Real-time optical pyrometry in laser machining. J. of Measurement Science and Technology. 5 (1994), pp.563-73.

4. E. Fallahi Sichani, J. -P. Kruth, H.D. Vanhove, J.R. Duflou: Real time monitoring and optimization of laser piercing of thick mild steel plates by means of photodiode sensors Proc. V Int. WLT-Conf. on Lasers in Manufacturing (Munich) (2009).

5. M. Doubenskaia, F. Bayle, I. Smurov, D. Novichenko: Optical monitoring in direct metal deposition Proc. V Int. WLT-Conf. on Lasers in Manufacturing (Munich) (2009), pp.591-596.

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