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7
Braz Dent Sci 2023 Apr/Jun;26 (2): e3562
Nuaimi MAAA et al.
Evaluation of EDM inclusion into the conventional polishing of printed Co-Cr alloy by selective laser melting
Nuaimi MAAA et al.
Evaluation of EDM inclusion into the conventional polishing of
printed Co-Cr alloy by selective laser melting
Ti dental alloys. Dent Mater. 2021;37(4):588-96. http://dx.doi.
org/10.1016/j.dental.2021.01.012. PMid:33581911.
14. Mahajan A, Devgan S, Sidhu SS. Surface alteration of biomedical
alloys by electrical discharge treatment for enhancing
the electrochemical corrosion, tribological and biological
performances. Surf Coat Tech. 2021;405:126583. http://dx.doi.
org/10.1016/j.surfcoat.2020.126583.
15. Mughal MP, Farooq MU, Mumtaz J, Mia M, Shareef M, Javed
M,et al. Surface modification for osseointegration of
Ti6Al4V ELI using powder mixed sinking EDM. J Mech Behav
Biomed Mater. 2021;113:104145. http://dx.doi.org/10.1016/j.
jmbbm.2020.104145. PMID: 33125953.
16. Nayim SMTI, Hasan MZ, Jamwal A, Thakur S, Gupta S. Recent
trends & developments in optimization and modelling of electro-
discharge machining using modern techniques: a review. AIP Conf
Proc. 2019;2148:030051. http://dx.doi.org/10.1063/1.5123973.
17. Weber H, Frank G. Spark erosion procedure: a method for
extensive combined fixed and removable prosthodontic
care. J Prosthet Dent. 1993;69(2):222-7. http://dx.doi.
org/10.1016/0022-3913(93)90144-D. PMid:8094098.
18. Sartori IA, Ribeiro RF, Francischone CE, de Mattos MG. In vitro
comparative analysis of the fit of gold alloy or commercially
pure titanium implant-supported prostheses before and after
electroerosion. J Prosthet Dent. 2004;92(2):132-8. http://dx.doi.
org/10.1016/j.prosdent.2004.04.001. PMid:15295321.
19. Eisenmann E, Mokabberi A, Walter MH, Freesmeyer WB.
Improving the fit of implant-supported superstructures using
the spark erosion technique. Int J Oral Maxillofac Implants.
2004;19(6):810-8. PMid:15623055.
20. Schimmelpfennig T-M, Rübeling G, Lorenz M. Development
of novel gap control method for the Electrical Discharge
Machining (EDM) of implant-supported dentures. Procedia CIRP.
2020;95:610-4. http://dx.doi.org/10.1016/j.procir.2020.02.249.
21. International Organization for Standardization. ISO 22674.
Dentistry - Metallic materials for fixed and removable
restorations and appliances. Geneva: ISO; 2016.
22. Moslehifard E, Seyyedashrafi MM, Khosronejad N. Evaluation
of surface roughness of a Ni-Cr Alloy treated with the Nd/
YAG laser and the sandblast technique. J Lasers Med Sci.
2021;12(1):e69-69. http://dx.doi.org/10.34172/jlms.2021.69.
PMid:35155154.
23. Jain NK, Gupta K. Spark erosion machining: MEMS to
aerospace. Boca Raton: CRC Press; 2020. http://dx.doi.
org/10.1201/9780429085758.
24. ASTM International. ASTM-D7127-17. Standard Test Method for
Measurement of Surface Roughness of Abrasive Blast Cleaned
Metal Surfaces Using a Portable Stylus Instrument. West
Conshohocken: ASTM International; 2017.
25. ASTM International. ASTM E 92. Standard Test Method for
Vickers Hardness of Metallic Materials. West Conshohocken:
ASTM International; 2017.
26. Afiq Rashid M, Rahman M, Senthil Kumar A. A study on compound
micromachining using laser and Electric Discharge Machining
(EDM). Ad Mater Process Technol. 2016;2(2):258-65. http://
dx.doi.org/10.1080/2374068X.2016.1164531.
27. Boban J, Ahmed A. Improving the surface integrity and
mechanical properties of additive manufactured stainless steel
components by wire electrical discharge polishing. J Mater
Process Technol. 2021;291:117013. http://dx.doi.org/10.1016/j.
jmatprotec.2020.117013.
28. Wandra R, Prakash C, Singh S. Experimental investigation and
optimization of surface roughness of β-Phase titanium alloy by
ball burnishing assisted electrical discharge cladding for implant
applications. Mater Today Proc. 2022;48:975-80. http://dx.doi.
org/10.1016/j.matpr.2021.06.070.
29. Kushwaha A, Jadam T, Datta S, Masanta M. Assessment
of surface integrity during electrical discharge machining
Of titanium grade 5 Alloys (Ti-6Al-4V). Mater Today Proc.
2019;18:2477-85. http://dx.doi.org/10.1016/j.matpr.2019.07.097.
30. Equbal A, Equbal MI, Sood AK. An investigation on the feasibility
of fused deposition modelling process in EDM electrode
manufacturing
.
CIRO J Manuf Sci Technol. 2019;26:10-25. http://
dx.doi.org/10.1016/j.cirpj.2019.07.001.
31. Mahajan A, Singh G, Devgan S, Sidhu SS. EDM performance
characteristics and electrochemical corrosion analysis of Co-Cr
alloy and duplex stainless steel: a comparative study. Proc Inst
Mech Eng, E J Process Mech Eng. 2021;235(4):812-23. http://
dx.doi.org/10.1177/0954408920976739.
32. Wang G, Han F. A comparative study on the surface integrity
of single-step and multi-step sequential machining in electric
discharge machining. Int J Adv Manuf Technol. 2021;114(5):1803-
17. http://dx.doi.org/10.1007/s00170-021-06947-1.
33. Aydin AK. Evaluation of finishing and polishing techniques on
surface roughness of chromium-cobalt castings. J Prosthet
Dent. 1991;65(6):763-7. http://dx.doi.org/10.1016/S0022-
3913(05)80008-3. PMid:2072317.
34. Taylor R, Maryan C, Verran J. Retention of oral microorganisms
on cobalt-chromium alloy and dental acrylic resin with different
surface finishes. J Prosthet Dent. 1998;80(5):592-7. http://
dx.doi.org/10.1016/S0022-3913(98)70037-X. PMid:9813811.
35. Jahan MP, Alavi F, Kirwin R, Mahbub R. Micro-EDM induced
surface modification of titanium alloy for biocompatibility.
Int J Mach Mach Mater. 2018;20(3):274-98. http://dx.doi.
org/10.1504/IJMMM.2018.10014654.
36. Perumal A, Kailasanathan C, Stalin B, Rajkumar PR, Gangadharan
T, Venkatesan G. Evaluation of EDM process parameters
on titanium alloy through Taguchi approach. Mater Today
Proc. 2021;45:2394-400. http://dx.doi.org/10.1016/j.
matpr.2020.10.737.
37. Baciu E-R, Cimpoeșu R, Vițalariu A, Baciu C, Cimpoeșu N, Sodor
A,etal. Surface analysis of 3D (SLM) Co–Cr–W dental metallic
materials. Appl Sci (Basel). 2020;11(1):255. http://dx.doi.
org/10.3390/app11010255.
38. Bernevig-Sava M, Stamate C, Lohan N-M, Baciu AM, Postolache
I, Baciu C, etal. Considerations on the surface roughness of
SLM processed metal parts and the effects of subsequent
sandblasting. IOP Conf Ser Mater Sci Eng.2019;572:012071.
http://dx.doi.org/10.1088/1757-899X/572/1/012071.
Date submitted: 2022 Jun 22
Accept submission 2023 Jan 12
(Corresponding address)
Mahmood Abdulla Ahmad Al Nuaimi
Middle Technical University, College of Health and Medical Techniques,
Baghdad, Iraq.
Email: mhmoodabdallaah@gmail.com