{"title":"利用红外/红二极管激光组成的3D打印机进行选择性激光烧结(SLS)","authors":"Srushti Lekurwale , Tukaram Karanwad , Subham Banerjee","doi":"10.1016/j.stlm.2022.100054","DOIUrl":null,"url":null,"abstract":"<div><p>The aim of this study was to employ and understand the feasibility of an infrared (IR)/red-diode laser with a wavelength of 808 nm for the selective laser sintering (SLS)-mediated sintering of 3D printlets, altering the dye composition and temperature variations. Kollicoat® IR (KIR) and an infrared (IR) laser-absorbing dye were physically mixed at various concentrations and subjected to SLS-mediated sintering to achieve 3D printlets by varying printing temperature (feed and print beds) at a fixed laser power ratio. Initially, the desired concentration of dye (1.25% w/w) was selected based on its sintering performance, and the same concentration was used to sinter the physical mixtures (PMs) at different feed bed temperatures (between 100 °C and 130 °C) and print bed temperature (120 °C to 150 °C), keeping the laser power ratio constant (1.0). It was found that good sintering performance was associated with a feed bed temperature of 130 °C and a print bed temperature of 150 °C. Printlets obtained from the aforementioned conditions showed highest dimensional accuracy (9.31 ± 0.30 mm diameter and 3.56 ± 0.04 mm thickness) in respect to feeded CAD dimensions (10 mm diameter and 3.60 mm thickness) with an average weight of 77.45 ± 4.56 mg. In addition, no physical/thermal or chemical degradation of the sintered 3D printlets was observed during the thermal and functional group analysis, respectively. Depending on the conditions given, we can conclude that an IR/red diode laser with a wavelength of 808 nm and a laser power ratio of 1.0 is feasible for sintering 3D printlets.</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"6 ","pages":"Article 100054"},"PeriodicalIF":0.0000,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666964122000108/pdfft?md5=1dd7b6b2284834b1717c2a05a64da22b&pid=1-s2.0-S2666964122000108-main.pdf","citationCount":"11","resultStr":"{\"title\":\"Selective laser sintering (SLS) of 3D printlets using a 3D printer comprised of IR/red-diode laser\",\"authors\":\"Srushti Lekurwale , Tukaram Karanwad , Subham Banerjee\",\"doi\":\"10.1016/j.stlm.2022.100054\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The aim of this study was to employ and understand the feasibility of an infrared (IR)/red-diode laser with a wavelength of 808 nm for the selective laser sintering (SLS)-mediated sintering of 3D printlets, altering the dye composition and temperature variations. Kollicoat® IR (KIR) and an infrared (IR) laser-absorbing dye were physically mixed at various concentrations and subjected to SLS-mediated sintering to achieve 3D printlets by varying printing temperature (feed and print beds) at a fixed laser power ratio. Initially, the desired concentration of dye (1.25% w/w) was selected based on its sintering performance, and the same concentration was used to sinter the physical mixtures (PMs) at different feed bed temperatures (between 100 °C and 130 °C) and print bed temperature (120 °C to 150 °C), keeping the laser power ratio constant (1.0). It was found that good sintering performance was associated with a feed bed temperature of 130 °C and a print bed temperature of 150 °C. Printlets obtained from the aforementioned conditions showed highest dimensional accuracy (9.31 ± 0.30 mm diameter and 3.56 ± 0.04 mm thickness) in respect to feeded CAD dimensions (10 mm diameter and 3.60 mm thickness) with an average weight of 77.45 ± 4.56 mg. In addition, no physical/thermal or chemical degradation of the sintered 3D printlets was observed during the thermal and functional group analysis, respectively. Depending on the conditions given, we can conclude that an IR/red diode laser with a wavelength of 808 nm and a laser power ratio of 1.0 is feasible for sintering 3D printlets.</p></div>\",\"PeriodicalId\":72210,\"journal\":{\"name\":\"Annals of 3D printed medicine\",\"volume\":\"6 \",\"pages\":\"Article 100054\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2666964122000108/pdfft?md5=1dd7b6b2284834b1717c2a05a64da22b&pid=1-s2.0-S2666964122000108-main.pdf\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Annals of 3D printed medicine\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666964122000108\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of 3D printed medicine","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666964122000108","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Medicine","Score":null,"Total":0}
Selective laser sintering (SLS) of 3D printlets using a 3D printer comprised of IR/red-diode laser
The aim of this study was to employ and understand the feasibility of an infrared (IR)/red-diode laser with a wavelength of 808 nm for the selective laser sintering (SLS)-mediated sintering of 3D printlets, altering the dye composition and temperature variations. Kollicoat® IR (KIR) and an infrared (IR) laser-absorbing dye were physically mixed at various concentrations and subjected to SLS-mediated sintering to achieve 3D printlets by varying printing temperature (feed and print beds) at a fixed laser power ratio. Initially, the desired concentration of dye (1.25% w/w) was selected based on its sintering performance, and the same concentration was used to sinter the physical mixtures (PMs) at different feed bed temperatures (between 100 °C and 130 °C) and print bed temperature (120 °C to 150 °C), keeping the laser power ratio constant (1.0). It was found that good sintering performance was associated with a feed bed temperature of 130 °C and a print bed temperature of 150 °C. Printlets obtained from the aforementioned conditions showed highest dimensional accuracy (9.31 ± 0.30 mm diameter and 3.56 ± 0.04 mm thickness) in respect to feeded CAD dimensions (10 mm diameter and 3.60 mm thickness) with an average weight of 77.45 ± 4.56 mg. In addition, no physical/thermal or chemical degradation of the sintered 3D printlets was observed during the thermal and functional group analysis, respectively. Depending on the conditions given, we can conclude that an IR/red diode laser with a wavelength of 808 nm and a laser power ratio of 1.0 is feasible for sintering 3D printlets.