Characteristics of Fe-, Ni- and Co-based Powder Coatings Fabricated by Laser Metal Deposition without Preheating the base Material
Loading...
Identifiers
Publication date
2018
Advisors
Journal Title
Journal ISSN
Volume Title
Publisher
Citations
Export
Abstract
The objective of this work was to select the best material from Fe-, Ni- and Co-based alloy powder for coating, by Laser Metal Deposition (LMD) the filets of a hardened 42CrMoS4 extrusion screw without preheating process. Even though most of the articles recommended preheating the base material as a condition for a crack free coating, the time wasted in the process decrease the productivity and distortions can be also generated in the part. In this work, a comparison of the main characteristics of the coatings done on preheated and non-preheated base material has been made. The relationships between the relevant LMD parameters (feed rate, laser power, and powder feeding rate) and the main geometrical characteristics of a single clad (height, width, dilution, deposition rate, efficiency, etc.) were examined. In addition, different characteristics of overlapped clads in a preheated, non-preheated and a hardened base material have been also analyzed. All the study was made in the Ibarmia ZVH 45/1600 Add+Process hybrid machine with a high power Yb-Fiber laser (3 kW) and discrete coaxial LMD head. Coatings with thickness from 1.2 to 0.76 were created without cracks and other defects except in the case of Ni-based coating. The microstructural features of these coatings were studied using optical and scanning electron microscopy. The mechanical properties were determined using microhardness measurements and a pin on disk tribometer.
Description
Publisher Copyright: © 2018 The Authors. Published by Elsevier B.V.
Keywords
Laser metal deposition , Coatings , Non-preheat , Geometrical characteristics , Co-Based , Fe-Based , Ni-Based , Laser metal deposition , Coatings , Non-preheat , Geometrical characteristics , Co-Based , Fe-Based , Ni-Based , Control and Systems Engineering , Industrial and Manufacturing Engineering , Project ID , info:eu-repo/grantAgreement/EC/H2020/723440/EU/A Productive, Affordable and Reliable solution for large scale manufacturing of metallic components by combining laser-based ADDItive and Subtractive processes with high Efficiency/PARADDISE , info:eu-repo/grantAgreement/EC/H2020/723440/EU/A Productive, Affordable and Reliable solution for large scale manufacturing of metallic components by combining laser-based ADDItive and Subtractive processes with high Efficiency/PARADDISE , Funding Info , The authors acknowledge the European Commission for_x000D_ support of Project "PARADDISE: a Productive, Affordable_x000D_ and Reliable solution for large scale manufacturing of_x000D_ metallic components by combining laser-based ADDItive and_x000D_ Subtractive processes with high Efficiency” (Grant_x000D_ Agreement 723440),which is an initiative of the Photonics_x000D_ and Factories of the Future Public Private Partnership. , The authors acknowledge the European Commission for_x000D_ support of Project "PARADDISE: a Productive, Affordable_x000D_ and Reliable solution for large scale manufacturing of_x000D_ metallic components by combining laser-based ADDItive and_x000D_ Subtractive processes with high Efficiency” (Grant_x000D_ Agreement 723440),which is an initiative of the Photonics_x000D_ and Factories of the Future Public Private Partnership.
Type
Citation
Ramiro , P , Alberdi , A , Ortiz , M , Lamikiz , A & Ukar , E 2018 , ' Characteristics of Fe-, Ni- and Co-based Powder Coatings Fabricated by Laser Metal Deposition without Preheating the base Material ' , Procedia CIRP , vol. 68 , pp. 381-386 . https://doi.org/10.1016/j.procir.2017.12.099