Processing LDS-Circuit Boards by Selective Laser Sintering
-
A. Wörz
Abstract
As the demand for individualized products rises, the development and need for additive manufacturing (AM) techniques such as selective laser sintering (SLS) has strongly increased. The industrial use of these procedures for prototypes or small-scale production lines has grown due to their specific characteristics like the high achievable complexity. With the increasing demand for electrification and functionalization, the combination of AM with laser-direct structuring (LDS) gains interest. Therefore, the powder used for the investigation is dry coated with a LDS-additive, which enables laser activation and a metallization of the activated sections in a metallization bath. To characterize the influence of the LDS-additive on the process, the powder properties were investigated for unfilled and successive increased additive content. The thermal process window was identified by standard and process adapted isothermal differential scanning calorimetry. This showed a decrease of the isothermal crystallization time due to nucleation effects of the additive. Subsequently, parts were produced with a parameter study and showed a demand for a higher energy density. The resulting parts were then metallized with a parameter variation and characterized by stereomicroscopy. To investigate the influence of the different parameter sets and the LDS content, the mechanical properties were determined.
References
Amado, A., Wegener, K., Schmid, M. and Levy, G., “Characterization and Modeling of Non-Isothermal Crystallization of Polyamide 12 and Co-Polypropylene during the SLS Process”, 5th International Polymers & Molds Innovations Conference, Ghent, Belgium, p. 207–216 (2012)Search in Google Scholar
Arnal, N., Ketterl, T., Weller, T., Wable, G., Thai, H., Garon, W. and Gamota, D., “3D Digital Manufacturing and Characterization of Antennas Integrated in Mobile Handset Covers”, 16th Annual Wireless and Microwave Technology Conference (WAMICON), Clearwater, USA, p. 1–5 (2015)PMid:26519218; 10.1109/WAMICON.2015.7120425Search in Google Scholar
Chunze, Y., Yusheng, S., Jinsong, Y. and Jinhui, L., “A Nanosilica/Nylon-12 Composite Powder For Selective Laser Sintering”, J. Reinf. Plast. Compos., 28, 2889–2902 (2009) 10.1177/0731684408094062Search in Google Scholar
Deckard, C. R.: U.S. Patent 5,017,753, (1991)Search in Google Scholar
DIN EN ISO 60:2000–01: Plastics – Determination of Apparent Density of Material That Can Be Poured from a Specified Funnel (1999)Search in Google Scholar
DIN EN ISO 527: Plastics – Determination of Tensile Properties (2010)Search in Google Scholar
DIN EN ISO 787–11: General Methods of Test for Pigments and Extenders – Part 11: Determination of Tamped Volume and Apparent Density after Tamping (1981)Search in Google Scholar
DIN EN ISO 1183: Plastics – Methods for Determing the Density of Non-Cellular-Plastics (2013)Search in Google Scholar
DIN EN ISO 3167, Plastics – Multipurpose Testspecimens (2014)Search in Google Scholar
DIN EN ISO 6186: Plastics – Determination of Pourability (1998)Search in Google Scholar
Franke, J.: Räumliche elektronische Baugruppen (3D-MID): Werkstoffe, Herstellung, Montage und Anwendung für spritzgegossene Schaltungsträger, Hanser Publishers, Munich (2013) 10.3139/9783446437784Search in Google Scholar
Gath, C., Drummer, D.: Studie zur Umsetzbarkeit der Laserdirektstrukturierung von Lasergesinterten Bauteilen, Neue Entwicklungen in der additiven Fertigung, Springer Vieweg, Berlin Heidelberg, p. 93–106 (2015) 10.1007/978-3-662-48473-9_7Search in Google Scholar
Gath, C., Drummer, D., “Curcuit Board Application to Additive Manufactured Components by Laser-Direct-Structuring, Molded Interconnect Devices (MID)”, 12th International Congress, Würzburg, Germany, p. 1–6 (2016) 10.1109/ICMID.2016.7738926Search in Google Scholar
Kohan, M. I.: Nylon Plastics Handbook, Hanser Publisher, München (1995)Search in Google Scholar
Launhardt, M., Wörz, A., Loderer, A., Laumer, T., Drummer, D., Hausotte, T. and Schmidt, M., “Detecting Surface Roughness on SLS Parts with Various Measuring Techniques”, Polym. Test., 53, 217–226 (2016) 10.1016/j.polymertesting.2016.05.022Search in Google Scholar
Masuda, H., Higashitani, K. and Yoshida, H.: Powder Technology Handbook, CRC Press, Boca Raton (2006) 10.1201/9781420044119Search in Google Scholar
Niese, B., Amend, P., Frick, T., Roth, S. and SchmidtM., “Fast and Flexible Production of Mechatronic Integrated Devices by Means of Additive Manufacturing, Molded Interconnect Devices (MID)”, 12th International Congress, Würzburg, Germany, p. 1–6 (2016) 10.1109/ICMID.2016.7738927Search in Google Scholar
Nöken, S., “Technologie des selektiven Lasersinterns von Thermoplasten”, Ph.D. Thesis, RWTH Aachen University, Aachen, Germany (1997)Search in Google Scholar
Schmachtenberg, E., Seul, T.: “Model of Isothermic Laser-Sintering”, 60th Anual Technical Conference of the Society of Plastic Engineers (ANTEC), San Francisco, p. 3030–3035 (2002)Search in Google Scholar
Neugebauer, F., Ploshikhin, V., Amdrosy, J. and Witt, G., “Isothermal and Non-Isothermal Crystallization Kinetics of Polyamide 12 Used in Laser Sintering”, J. Therm. Anal. Calorim., 124, 925–933 (2016) 10.1007/s10973-015-5214-8Search in Google Scholar
Schmid, M.: Selektives Lasersintern (SLS) mit Kunststoffen, Hanser Publishers, Munich (2015) 10.3139/9783446445505Search in Google Scholar
Sun, Y., Niino, T., “Laser Sintering of LDS Material, Molded Interconnect Devices (MID)”, 12th International Congress, Würzburg, Germany, p. 1–5 (2016) 10.1109/ICMID.2016.7738928Search in Google Scholar
Wegner, A., “Theorie über die Fortführung von Aufschmelzvorgängen als Grundvoraussetzung für eine robuste Prozessföhrung beim Laser-Sintern von Thermoplasten”, Ph.D. Thesis, University Duisburg-Essen, Duisburg (2015)Search in Google Scholar
Wild, A., “Integration of Functional Circuits into FDM Parts”, Adv. Mater. Res., 1038, 29–33 (2014) 10.4028/www.scientific.net/AMR.1038.29Search in Google Scholar
Wißbrock, H., “Laser-Direkt-Strukturieren von Kunststoffen: Ein neues Verfahren im Spiegel eingeführter MID-Technologien”, Kunststoffe, 92, 101–105 (2002)Search in Google Scholar
© 2019, Carl Hanser Verlag, Munich
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Flow-Fiber Coupled Viscosity in Injection Molding Simulations of Short Fiber Reinforced Thermoplastics
- Effects of Cooling Ways on the Structure of Polypropylene Hollow Fiber Membranes Prepared by Stretching
- Fill Factor Effects in Highly-Viscous Non-Isothermal Rubber Mixing Simulations
- Morphology and Isothermal Crystallization Kinetics of Polypropylene/Poly(ethylene-co-vinyl alcohol) Blends
- Mechanical and Thermal Properties of Teak Wood Flour/Starch Filled High Density Polyethylene Composites
- Three-Dimensional, Non-Isothermal Simulations of the Effect of Speed Ratio in Partially-Filled Rubber Mixing
- Edge Effect in Hot Embossing and its Influence on Global Pattern Replication of Polymer-Based Microneedles
- Enhancing Flame Retardancy, Thermal Stability, Physical and Mechanical Properties of Polyethylene Foam with Polyphosphate Modified Expandable Graphite and Ammonium Polyphosphate
- Processing LDS-Circuit Boards by Selective Laser Sintering
- Structural and Optical Characteristics of Laser Irradiated CdSe/PVA Nanocomposites
- The Effect of Ultraviolet Ageing on the Flame Retardancy, Thermal Stability and Mechanical Properties of LGFPP/IFR
- Preparation and Characterization of a Biocomposite Based on Cork Microparticles in Poly(β-hydroxybutyrate)-co-Poly(β-hydroxyvalerate) Matrix
- Partially Filled Flow Simulation Using Meshfree Method for High Viscosity Fluid in Plastic Mixer
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Flow-Fiber Coupled Viscosity in Injection Molding Simulations of Short Fiber Reinforced Thermoplastics
- Effects of Cooling Ways on the Structure of Polypropylene Hollow Fiber Membranes Prepared by Stretching
- Fill Factor Effects in Highly-Viscous Non-Isothermal Rubber Mixing Simulations
- Morphology and Isothermal Crystallization Kinetics of Polypropylene/Poly(ethylene-co-vinyl alcohol) Blends
- Mechanical and Thermal Properties of Teak Wood Flour/Starch Filled High Density Polyethylene Composites
- Three-Dimensional, Non-Isothermal Simulations of the Effect of Speed Ratio in Partially-Filled Rubber Mixing
- Edge Effect in Hot Embossing and its Influence on Global Pattern Replication of Polymer-Based Microneedles
- Enhancing Flame Retardancy, Thermal Stability, Physical and Mechanical Properties of Polyethylene Foam with Polyphosphate Modified Expandable Graphite and Ammonium Polyphosphate
- Processing LDS-Circuit Boards by Selective Laser Sintering
- Structural and Optical Characteristics of Laser Irradiated CdSe/PVA Nanocomposites
- The Effect of Ultraviolet Ageing on the Flame Retardancy, Thermal Stability and Mechanical Properties of LGFPP/IFR
- Preparation and Characterization of a Biocomposite Based on Cork Microparticles in Poly(β-hydroxybutyrate)-co-Poly(β-hydroxyvalerate) Matrix
- Partially Filled Flow Simulation Using Meshfree Method for High Viscosity Fluid in Plastic Mixer
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
