Abstract
Nowadays, selective laser melting (SLM) technology features is somehow unknown mainly on the process parameters needed for each material. The main goal of this work is to give better process parameters combination when CoCrMo powders are utilized. A statistical methodology based on the experimentation has been applied. In this study, a full factorial design is used. It assesses the impact of process parameters on surface quality (Q), flatness, overlapping, and surface roughness. The distinguishing feature is the melting of single layers in variable layers powder with a continuous laser. Based on these results combined with visual observation of the solidified tracks, the effect of process parameters on the surface roughness for each case is investigated. The results show that surface roughness (Ramax) is affected strongly by laser power, scan spacing, and scanning speed thereby giving an average roughness at 8 μm. In addition, other roughness parameters such as the peak height (Rp) and depth of the lowest point of the profile (Rv) are found to be useful tools for evaluation of top quality. The best layers have been showed when the laser powers are 300 and 400 W and the scanning space of 450 and 600 μm. These layers are classified with (Q) less than 2.
Similar content being viewed by others
References
Kruth JP, Froyen L, Van Vaerenbergh J, Mercelis P, Rombouts M, Lauwers B (2004) Selective laser melting of iron-based powder. J Mater Process Technol 149(1–3):616–622
Elsen MV, Al-bender F, Kruth J (2008) Application of dimensional analysis to selective laser melting. Rapid Prototyp J 1:15–22
Vandenbroucke B, Kruth J-P (2007) Selective laser melting of biocompatible metals for rapid manufacturing of medical parts. Rapid Prototyp J 13(4):196–203
Dimitrov D, Schreve K, Beer ND (2006) Advances in three dimensional printing—State of the art and future perspectives. Rapid Prototyp J 12(3):136–147
Yadroitsev I, Bertrand P, Smurov I (2007) Parametric analysis of the selective laser melting process. Appl Surf Sci 253(19):8064–8069
Ciurana J, Hernandez L, Delgado J (2013) Energy density analysis on single tracks formed by selective laser melting with CoCrMo powder material. Int J Adv Manuf Technol 68(5–8):1103–1110
Averyanova M, Cicala E, Bertrand P, Grevey D (2012) Experimental design approach to optimize selective laser melting of martensitic 17–4 PH powder: part I – single laser tracks and first layer. Rapid Prototyp J 18(1):28–37
Osakada K, Shiomi M (2006) Flexible manufacturing of metallic products by selective laser melting of powder. Int J Mach Tools Manuf 46:1188–1193
Gusarov AV, Yadroitsev I, Bertrand P, Smurov I (2007) Heat transfer modelling and stability analysis of selective laser melting. Appl Surf Sci 254:975–979
Rombouts M, Kruth JP, Froyen L, Mercelis P (2006) Fundamentals of selective laser melting of alloyed steel powders. CIRP Annals-Manufacturing Technology 55(1):187–192
Su X, Yang Y (2012) Research on track overlapping during selective laser melting of powders. J Mater Process Technol 212(10):2074–2079
Zhang K, Liu W, Shang X (2007) Research on the processing experiments of laser metal deposition shaping. Opt Laser Technol 39(0030):549–557
Badrossamay M, Childs THC (2007) Further studies in selective laser melting of stainless and tool steel powders. Int J Mach Tools Manuf 47(5):779–784
Yasa E, Kruth J (2012) Microstructural investigation of selective laser melting 316 L stainless steel parts exposed to laser re-melting. Procedia Eng 19:389–395
Dingal S, Pradhan TR, Sundar JKS, Choudhury AR, Roy SK (2007) The application of Taguchi’s method in the experimental investigation of the laser sintering process. Int J Adv Manuf Technol 38(9–10):904–914
Sun J, Yang Y, Wang D (2013) Parametric optimization of selective laser melting for forming Ti6Al4V samples by Taguchi method. Opt Laser Technol 49:118–124
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Pupo, Y., Monroy, K.P. & Ciurana, J. Influence of process parameters on surface quality of CoCrMo produced by selective laser melting. Int J Adv Manuf Technol 80, 985–995 (2015). https://doi.org/10.1007/s00170-015-7040-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00170-015-7040-3