Online quality control of selective laser melting

The development of a framework for online quality control of Selective Laser Melting is the subject of this paper. The framework consists of two complementary systems: a system for visual inspection of powder deposition and a system for online and real-time monitoring of the melt pool. Selective Laser Melting (SLM) is a layer-wise material additive production process for the direct fabrication of functional metallic parts. Despite the progress made in improving the SLM process and part quality, an important issue still needing more investigation is online quality monitoring and control of the process.

Online quality control of selective laser melting. T Craeghs, S Clijsters, E Yasa, JP Kruth. Proceedings of the 20th Solid Freeform Fabrication (SFF) symposium,  Quality Control for Laser Beam Melting Processes T. Craeghs, S. Clijsters, E. Yasa, and J.-P. Kruth, “Online Quality Control of Selective Laser. Melting,” in  3D opportunity for quality assurance and parts qualification: Additive manufacturing clears the bar. Deloitte Consulting control of selective laser melting," Katholieke Universiteit Leuven. Hans Rieder et al., “Online monitoring of additive  Repeatability and reproducibility of parts produced by selective laser melting is a quality control presents a major hindrance towards maturing of selective laser A. DillHofer, M. Spies, J. Bamberg and T. Hess, "Online monitoring of additive  Selective laser sintering additive manufacturing, compromise the repeatability, pre- laser- online monitoring and the development of control and error- positioning 2.2 Defects related to surface quality (finishing) Shrinkage can take place in  16 Apr 2019 Coaxial imaging of melt pool dynamics provides several advantages over other monitoring methods in selective laser melting (SLM). F. Dorsch, H. Braun, S. Keßler, D. Pfitzner, and V. Rominger, “Online characterization of laser beam “In situ quality control of the selective laser melting process using a 

Various modules are offered to monitor, document and verify selective laser melting builds, especially important for industries with high-quality requirements. The Layer Control System (LCS) is a testing and documentation system that examines the performance of each powder layer.

Online quality control of selective laser melting. T Craeghs, S Clijsters, E Yasa, JP Kruth. Proceedings of the 20th Solid Freeform Fabrication (SFF) symposium,  Quality Control for Laser Beam Melting Processes T. Craeghs, S. Clijsters, E. Yasa, and J.-P. Kruth, “Online Quality Control of Selective Laser. Melting,” in  3D opportunity for quality assurance and parts qualification: Additive manufacturing clears the bar. Deloitte Consulting control of selective laser melting," Katholieke Universiteit Leuven. Hans Rieder et al., “Online monitoring of additive  Repeatability and reproducibility of parts produced by selective laser melting is a quality control presents a major hindrance towards maturing of selective laser A. DillHofer, M. Spies, J. Bamberg and T. Hess, "Online monitoring of additive  Selective laser sintering additive manufacturing, compromise the repeatability, pre- laser- online monitoring and the development of control and error- positioning 2.2 Defects related to surface quality (finishing) Shrinkage can take place in  16 Apr 2019 Coaxial imaging of melt pool dynamics provides several advantages over other monitoring methods in selective laser melting (SLM). F. Dorsch, H. Braun, S. Keßler, D. Pfitzner, and V. Rominger, “Online characterization of laser beam “In situ quality control of the selective laser melting process using a  additive manufacturing is selective laser melting (SLM), a powder bed fusion method. High-quality control of the built objects is important since they get used , for Real-time online monitoring would allow one to identify defects at an early  

This paper discusses the principle and the relevance of an in situ monitoring system for selective laser melting (SLM). This system enables the operator to monitor the quality of the SLM job on-line and estimate the quality of the part accordingly. The monitoring system consists of two major developments in hardware and software.

Developing a Quality Inspection Method for Selective Laser Melting of Metals with NI Hardware and Software Tom Craeghs, Catholic University of Leuven "By building our system with the NI FlexRIO FPGA adapter module incorporated in an NI PXI system with LabVIEW, we can more effectively monitor and control the quality of the SLM process. This paper discusses the principle and the relevance of an in situ monitoring system for selective laser melting (SLM). This system enables the operator to monitor the quality of the SLM job on-line and estimate the quality of the part accordingly. The monitoring system consists of two major developments in hardware and software. The first development, essential for a suitable monitoring Online Quality Control of Selective Laser Melting By Tom Craeghs, Stijn Clijsters, Evren Yasa and Jean-Pierre Kruth Get PDF (2 MB) In situ quality control of the selective laser melting process using a high-speed, real-time melt pool monitoring system In situ quality control of the selective laser melting process using a high-speed, real-time melt Selective Laser Melting is utilized to build parts directly from CAD data. In this study layerwise monitoring of the temperature distribution is used to gather information about the process stability and the resulting part quality.

Online Quality Control of Selective Laser Melting By Tom Craeghs, Stijn Clijsters, Evren Yasa and Jean-Pierre Kruth Get PDF (2 MB)

Selective laser sintering additive manufacturing, compromise the repeatability, pre- laser- online monitoring and the development of control and error- positioning 2.2 Defects related to surface quality (finishing) Shrinkage can take place in  16 Apr 2019 Coaxial imaging of melt pool dynamics provides several advantages over other monitoring methods in selective laser melting (SLM). F. Dorsch, H. Braun, S. Keßler, D. Pfitzner, and V. Rominger, “Online characterization of laser beam “In situ quality control of the selective laser melting process using a  additive manufacturing is selective laser melting (SLM), a powder bed fusion method. High-quality control of the built objects is important since they get used , for Real-time online monitoring would allow one to identify defects at an early   meet the desired quality standard. The development of a framework for online quality control of Selective Laser Melting is the subject of this paper. The framework consists of two complementary systems: a system for visual inspection of powder deposition and a system for online and real-time monitoring of the melt pool. A combination of these two

Online Quality Control of Selective Laser Melting By Tom Craeghs, Stijn Clijsters, Evren Yasa and Jean-Pierre Kruth Get PDF (2 MB)

This paper discusses the principle and the relevance of an in situ monitoring system for selective laser melting (SLM). This system enables the operator to monitor the quality of the SLM job on-line and estimate the quality of the part accordingly. The monitoring system consists of two major developments in hardware and software. The first development, essential for a suitable monitoring Online Quality Control of Selective Laser Melting By Tom Craeghs, Stijn Clijsters, Evren Yasa and Jean-Pierre Kruth Get PDF (2 MB) In situ quality control of the selective laser melting process using a high-speed, real-time melt pool monitoring system In situ quality control of the selective laser melting process using a high-speed, real-time melt Selective Laser Melting is utilized to build parts directly from CAD data. In this study layerwise monitoring of the temperature distribution is used to gather information about the process stability and the resulting part quality.

In-Process Control of Selective Laser Melting by Quantitative Optical Tomography Joachim BAMBERG, Günter ZENZINGER, Alexander LADEWIG MTU Aero Engines AG, München, Germany Contact e-mail: Joachim.Bamberg@mtu.de Abstract. Selective laser melting is a promising technology for additive manufacturing of complex shaped parts. Selective Laser Melting is utilized to build parts directly from CAD data. In this study layerwise monitoring of the temperature distribution is used to gather information about the process stability and the resulting part quality. Additive manufacturing techniques such as selective laser melting offer unique capabilities in the manufacture of geometrically-complex metal components, but online quality assurance and process control still remain major challenges. Selective laser melting (SLM) Additive manufacturing (AM) Direct metal laser melting (DMLM) Selective laser sintering (SLS) Direct metal laser sintering (DMLS) Powder bed In-process sensing Process monitoring Process control Melt pool monitoring. This is a preview of subscription content, log in to check access.