Abstract
CP-Ti-G2 (Commercially pure titanium grade-2) has become the preferred biocompatible material for various devices mainly used in orthopedic and dental implants and it is also used in aviation and aircraft. While CP-Ti deals with good ductility, higher stiffness, and fatigue resistance. The novelty of present research work was to create a rough surface on CP-Ti-G2 through the WEDM process. Further, this rough surface was used in the development of bone marrow cells on it. Propagation and diversity of bone marrow cells were applied in dental implant osteointegration applications. Six WEDM factors were analyzed through the BBD design of the experiment. 54 trial experiments were conducted to observe the MRR and SR output responses. After machining, surface topography was examined through SEM and EDX. ANOVA was applied to analyze the significance of factors. It was observed that POT (pulse on time), POFT (pulse off time), PC (peak current), and SGV (spark gap voltage) are the most significant factors. The WEDM factors have also been significantly deteriorating the microstructure of machined samples remarkably deeper, wider craters, globules of debris, and micro cracks. A multi-objective optimization ‘desirability’ function was applied to obtain the optimal solutions by numerical and supervised machine learning algorithms. They lead to the reflection of parametric machine learning algorithms to surmise about the effectiveness of WEDM process. The results show a good agreement between actual and predicted values.
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Abbreviations
- AR2 :
-
Adjusted R2
- AP:
-
Adequate Precision
- ANOVA:
-
Analysis of variance
- BBD:
-
Box-Behnken design
- CP-Ti-G2:
-
Commercially pure titanium grade-2
- CI:
-
Confidence interval
- CNC:
-
Computer numerical control
- EDX:
-
Energy dispersive X-ray analysis
- LOF:
-
Lack of fit
- MS:
-
Mean square
- MRR:
-
Material removal rate
- POT:
-
Pulse on time
- POFT:
-
Pulse off time
- PC:
-
Peak current
- PE:
-
Pure error
- PR2 :
-
Predicted R2
- RSM:
-
Response surface methodology
- SR:
-
Surface roughness
- SEM:
-
Scanning electron microscope
- SGV:
-
Spark gap voltage
- SS:
-
Sum of square
- WEDM:
-
Wire electric discharge machining
- WS:
-
Wire speed
- WT:
-
Wire tension
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Acknowledgements
The authors would like to thank the central tool room, Ludhiana, Punjab, India, for providing the necessary WEDM set-up for experimentation. The authors are also thankful to IIT, Ropar, M.M College of Dental Sciences Mullana, Ambala, India for the permission to use their laboratory facilities (SEM, XRD, and EDX). No funding was received from any agency or institution.
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Kumar, A., Sharma, R., Gupta, A.K. et al. Investigation of biocompatible implant material through WEDM process using RSM modeling hybrid with the machine learning algorithm. Sādhanā 46, 148 (2021). https://doi.org/10.1007/s12046-021-01676-3
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DOI: https://doi.org/10.1007/s12046-021-01676-3