Abstract
The layers fabrication technique, known as Selective Laser Sintering SLS, is widely used. A basic investigation on its application in the field of the fabrication of transitory molds in the foundry industry is the object of this work. In fact, the Selective Laser Sintering (SLS) of precovered foundry sands allows the aggregation of adjacent particles with the possibility to realize molds and cores not obtainable with conventional methods.Since LaserCron is widely used for sand casting (by EOS) with SLS, the authors investigated its CO2 laser behavior. The laser effect on sand has been evaluated in terms of sintering thickness and deformations of layers along the z-axis. A full factorial approach has been used in order to evaluate the effects of three controllable factors, i.e. laser power, scan speed, scan spacing, and their interactions, on the layers adhesion, surface quality, and accuracy of the obtained product. Response surface methodology and Analysis of Variance have been used to evaluate SLS process performance, in terms of process parameter evaluation and optimization.The layers fabrication technique, known as Selective Laser Sintering SLS, is widely used. A basic investigation on its application in the field of the fabrication of transitory molds in the foundry industry is the object of this work. In fact, the Selective Laser Sintering (SLS) of precovered foundry sands allows the aggregation of adjacent particles with the possibility to realize molds and cores not obtainable with conventional methods.Since LaserCron is widely used for sand casting (by EOS) with SLS, the authors investigated its CO2 laser behavior. The laser effect on sand has been evaluated in terms of sintering thickness and deformations of layers along the z-axis. A full factorial approach has been used in order to evaluate the effects of three controllable factors, i.e. laser power, scan speed, scan spacing, and their interactions, on the layers adhesion, surface quality, and accuracy of the obtained product. Response surface methodology and Analysis of Variance have been used to evaluate SLS proc...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.