PMID- 32138209
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200928
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 12
IP  - 3
DP  - 2020 Mar 3
TI  - Post-Processing of FDM 3D-Printed Polylactic Acid Parts by Laser Beam Cutting.
LID - 10.3390/polym12030550 [doi]
LID - 550
AB  - In this paper, the post-processing of 3D-printed poly lactic acid (PLA) parts is 
      investigated. Workpieces are manufactured by fused deposition modeling (FDM) 3D 
      printing, while they may have defects in some areas such as edges. A 
      post-processing is introduced here for 3D-printed samples by low power CO(2) 
      laser. The thickness of the FDM samples are 3.2 mm and printed by optimum 
      conditions. Effects of process parameters such as focal plane position (-3.2-3.2 
      mm), laser power (20-40 W), and laser cutting speed (1-13 mm/s) are examined 
      based on the design of experiments (DOE). Geometrical features of the kerf; top 
      and bottom kerf; taper; ratio of top to the bottom kerf are considered as output 
      responses. An analysis of the experimental results by statistical software is 
      conducted to survey the effects of process parameters and to obtain regression 
      equations. By optimizing of the laser cutting process; an appropriate kerf 
      quality is obtained and also optimum input parameters are suggested. Experimental 
      verification tests show a good agreement between empirical results and 
      statistical predictions. The best optimum sample with 1.19 mm/s cutting speed, 
      36.49 W power and 0.53 mm focal plane position shows excellent physical features 
      after the laser cutting process when 276.9 mum top and 261.5 mum bottom kerf width 
      is cut by laser.
FAU - Moradi, Mahmoud
AU  - Moradi M
AUID- ORCID: 0000-0003-2361-4796
AD  - Department of Mechanical Engineering, Faculty of Engineering, Malayer University, 
      Malayer P.O. Box 65719-95863, Iran.
AD  - Laser Materials Processing Research Centre, Malayer University, Malayer P.O. Box 
      65719-95863, Iran.
FAU - Karami Moghadam, Mojtaba
AU  - Karami Moghadam M
AUID- ORCID: 0000-0002-4753-8030
AD  - Department of Mechanical Engineering, Faculty of Engineering, Malayer University, 
      Malayer P.O. Box 65719-95863, Iran.
AD  - Laser Materials Processing Research Centre, Malayer University, Malayer P.O. Box 
      65719-95863, Iran.
FAU - Shamsborhan, Mahmoud
AU  - Shamsborhan M
AUID- ORCID: 0000-0003-0875-4416
AD  - Department of Engineering, Mahabad Branch, Islamic Azad University, Mahabad P.O. 
      Box 59135-433, Iran.
AD  - Department of Mechanical Engineering, University of Zakho, Zakho P.O. Box 12, 
      Kurdistan Region, Iraq.
FAU - Bodaghi, Mahdi
AU  - Bodaghi M
AUID- ORCID: 0000-0002-0707-944X
AD  - Department of Engineering, School of Science and Technology, Nottingham Trent 
      University, Nottingham NG11 8NS, UK.
FAU - Falavandi, Hamid
AU  - Falavandi H
AD  - Department of Mechanical Engineering, Faculty of Engineering, Malayer University, 
      Malayer P.O. Box 65719-95863, Iran.
AD  - Laser Materials Processing Research Centre, Malayer University, Malayer P.O. Box 
      65719-95863, Iran.
LA  - eng
PT  - Journal Article
DEP - 20200303
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC7182925
OTO - NOTNLM
OT  - 3D printing
OT  - additive manufacturing
OT  - design of experiments
OT  - fused deposition modeling
OT  - laser cutting
OT  - post-processing
COIS- The authors declare no conflict of interest.
EDAT- 2020/03/07 06:00
MHDA- 2020/03/07 06:01
PMCR- 2020/03/03
CRDT- 2020/03/07 06:00
PHST- 2019/12/30 00:00 [received]
PHST- 2020/02/25 00:00 [revised]
PHST- 2020/02/26 00:00 [accepted]
PHST- 2020/03/07 06:00 [entrez]
PHST- 2020/03/07 06:00 [pubmed]
PHST- 2020/03/07 06:01 [medline]
PHST- 2020/03/03 00:00 [pmc-release]
AID - polym12030550 [pii]
AID - polymers-12-00550 [pii]
AID - 10.3390/polym12030550 [doi]
PST - epublish
SO  - Polymers (Basel). 2020 Mar 3;12(3):550. doi: 10.3390/polym12030550.