Characterization of WC-Co deposited through additive manufacturing (AM) using the Direct Energy Deposition (DED) method

• Grant number: 20/03110-5
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2020
• End date: April 30, 2021
• Field of knowledge: Engineering - Mechanical Engineering - Manufacturing Processes
• Principal Investigator: Reginaldo Teixeira Coelho
• Grantee: Gabriel Viana Figueiredo
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 16/11309-0 - The study, development and application of a hybrid process: Additive Manufacturing (AM) plus High Speed Machining/Grinding (HSM/G), AP.TEM

Abstract

Currently, the manufacture of parts and their tools for series production and exclusive, such as molds and dies, faces a new challenge: maximum precision, flexibility and high production speed. This research project aims to characterize the deposition of tungsten carbide agglomerated with cobalt (WC-Co) in AISI H13 and 4140 steels by means of additive manufacturing (AM) using the Direct Energy Deposition (DED) Powder-fed method laser system. The laser MA-DED Powder-fed system process is a recent technology and, for the development of coatings on parts, a complete study of the deposition parameters is required for the use of other materials as raw material. The depositions produced will be evaluated in order to verify the manufacturing parameters. Additionally, the proportion of Co for the deposition of powders will be modified. The samples obtained will be characterized using microstructural techniques (SEM / EDS and laser confocal), X-ray diffraction and fluorescence, as well as hardness tests and microadhesive and microabrasive wear tests. The interconnection between these technologies and the quality of the process is an important step in the development of coatings produced by MA. The expected result is to obtain a homogeneous coating, with excellent adhesion to the substrate and high resistance to wear.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GOMES, MILLA CAROLINE; DOS SANTOS, ALINE GONCALVES; DE OLIVEIRA, DEBORAH; FIGUEIREDO, GABRIEL VIANA; BARROS RIBEIRO, KANDICE SUANE; BARRAGAN DE LOS RIOS, GERMAN ALBERTO; DA SILVA, MARCIO BACCI; COELHO, REGINALDO TEIXEIRA; HUNG, WAYNE N. P.. Micro-machining of additively manufactured metals: a review. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, v. 118, n. 7-8, SEP 2021. (20/03110-5, 19/00343-1, 19/08926-6, 16/11309-0)

DE OLIVEIRA, DEBORAH; GOMES, MILLA CAROLINE; DOS SANTOS, ALINE GONCALVES; BARROS RIBEIRO, KANDICE SUANE; VASQUES, IAGO JOSE; COELHO, REGINALDO TEIXEIRA; DA SILVA, MARCIO BACCI; HUNG, NGUYEN WAYNE. Abrasive and non-conventional post-processing techniques to improve surface finish of additively manufactured metals: a review. PROGRESS IN ADDITIVE MANUFACTURING, v. N/A, p. 18-pg., 2022-07-21. (19/08926-6, 19/00343-1, 16/11309-0, 20/03110-5)