Active thermography;
PBF-LB/M;
Non-destructive testing;
SPIT;
Process monitoring;
MANUFACTURED COMPONENTS;
ACOUSTIC-EMISSION;
ULTRASOUND;
POROSITY;
D O I:
10.1016/j.jmapro.2024.09.085
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Additive manufacturing (AM) has revolutionized production by offering design flexibility, reducing material waste, and enabling intricate geometries that are often unachievable with traditional methods. As the use of AM for metals continues to expand, it is crucial to ensure the quality and integrity of printed components. Defects can compromise the mechanical properties and performance of the final product. Non-destructive testing (NDT) techniques are necessary to detect and characterize anomalies during or post-manufacturing. Active thermography, a thermal imaging technique that uses an external energy source to induce temperature variations, has emerged as a promising tool in this field. This paper explores the potential of in-situ non-destructive testing using the processing laser of a PBF-LB/M setup as an excitation source for active thermography. With this technological approach, artificially generated internal defects underneath an intact surface can be detected down to a defect size of 350 mu m - 450 mu m.
机构:
Univ Studi Roma Tre, Dept Ind Elect & Mech Engn, Via Vasca Navale 62 Ex Vasca Navale, I-00146 Rome, ItalyUniv Studi Roma Tre, Dept Ind Elect & Mech Engn, Via Vasca Navale 62 Ex Vasca Navale, I-00146 Rome, Italy
Quercio, Michele
Poskovic, Emir
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Politecn Torino, Energy Dept, Corso Duca Abruzzi 24, I-10129 Turin, ItalyUniv Studi Roma Tre, Dept Ind Elect & Mech Engn, Via Vasca Navale 62 Ex Vasca Navale, I-00146 Rome, Italy
Poskovic, Emir
Franchini, Fausto
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Politecn Torino, Energy Dept, Corso Duca Abruzzi 24, I-10129 Turin, ItalyUniv Studi Roma Tre, Dept Ind Elect & Mech Engn, Via Vasca Navale 62 Ex Vasca Navale, I-00146 Rome, Italy
Franchini, Fausto
Fracchia, Elisa
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Politecn Torino, Dept Management & Prod Engn DIGEP, Viale Teresa Michel 5, Alessandria, ItalyUniv Studi Roma Tre, Dept Ind Elect & Mech Engn, Via Vasca Navale 62 Ex Vasca Navale, I-00146 Rome, Italy
Fracchia, Elisa
Ferraris, Luca
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Politecn Torino, Energy Dept, Corso Duca Abruzzi 24, I-10129 Turin, ItalyUniv Studi Roma Tre, Dept Ind Elect & Mech Engn, Via Vasca Navale 62 Ex Vasca Navale, I-00146 Rome, Italy
Ferraris, Luca
Canova, Aldo
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Politecn Torino, Energy Dept, Corso Duca Abruzzi 24, I-10129 Turin, ItalyUniv Studi Roma Tre, Dept Ind Elect & Mech Engn, Via Vasca Navale 62 Ex Vasca Navale, I-00146 Rome, Italy
Canova, Aldo
Tenconi, Alberto
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Politecn Torino, Energy Dept, Corso Duca Abruzzi 24, I-10129 Turin, ItalyUniv Studi Roma Tre, Dept Ind Elect & Mech Engn, Via Vasca Navale 62 Ex Vasca Navale, I-00146 Rome, Italy