Influence of selective laser melting process parameters on texture evolution in pure copper
By S. Jadhav, Sasan Dadbakhsh, L. Goossens, Jean-Pierre Kruth, J. van Humbeeck, K. Vanmeensel. Journal of Materials Processing Technology, 2019
272 citations recorded by the source corpus.
Abstract In the present work, Crack-Free pure copper parts with relative densities exceeding 98% are processed by selective laser melting (SLM) using a high-power fiber laser. The influence of different laser scan parameters such as hatch spacing, laser power and scan speed on the texture evolution in the manufactured parts is determined. On the top surfaces, a clear interrelationship between laser scan parameters and crystallographic texture is established. This shows that the texture at the top surface can be very strong especially when a high laser power and a low scanning speed is used. However, a random texture exists in the core of the sample due to successive re-melting and altered heat gradients induced by the application of a 90° scan rotation between subsequent layers. A maximum electrical conductivity of 88% of the International Annealed Copper Standard (IACS) is achieved in the as-built state. Damage to the optical mirror of the SLM machine is observed and recommendations for sustainable up-scalability are proposed.
Subfields: Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/d5250364fea26e139a5c885d9c3c2ffb0d532a92
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In Mechanical Engineering
- Richard J. M. Hague
- Ian Ashcroft
- M. Doddamani
- Wanasinghe Arachchige Dumith Madushanka Jayathilaka
- Han Huang
- A. Chinnappan
- V. Kumar
- Long T. Tran
Citations in the corpus
- A Novel Strategy to Additively Manufacture 7075 Aluminium Alloy With Selective Laser Melting (2021, result): “The IPF colour indicates that majority of these columnar grains have a strong [001] texture along the BD, which is consistent with previous studies on other additively manufactured cubic-structured materials [43-46].”
- Electrical resistivity of pure copper processed by medium-powered laser powder bed fusion additive manufacturing for use in electromagnetic applications (2019, background): “Even higher power lasers (1 kW) with small spot sizes (40 μm) processing pure copper run the risk of damaging the scanning mirrors due to its high reflectivity as seen in [47].”
- 3D Printing of Highly Pure Copper (2019, methodology): “Most commercial SLM systems use continuous wave and long-pulse lasers working in the near infrared radiation (IR) with a wavelength of about 1 μm [51,52].”