Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed

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VENKATA RAMANA, Mula ;THYLA, Pudukarai Ramaswamy ;SUBRAMANIAN, Elango ;CHINNURAJ, Shanmugam .
Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 69, n.3-4, p. 169-184, february 2023. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/thermal-investigations-on-cnc-lathe-fitted-with-dynamically-enhanced-steel-reinforced-epoxy-granite-bed/>. Date accessed: 21 jul. 2024. 
doi:http://dx.doi.org/10.5545/sv-jme.2022.356.
Venkata Ramana, M., Thyla, P., Subramanian, E., & Chinnuraj, S.
(2023).
Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed.
Strojniški vestnik - Journal of Mechanical Engineering, 69(3-4), 169-184.
doi:http://dx.doi.org/10.5545/sv-jme.2022.356
@article{sv-jmesv-jme.2022.356,
	author = {Mula  Venkata Ramana and Pudukarai Ramaswamy  Thyla and Elango  Subramanian and Shanmugam  Chinnuraj},
	title = {Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {69},
	number = {3-4},
	year = {2023},
	keywords = {precision machine tools; thermal error; steel reinforcement; epoxy granite; },
	abstract = {Polymer concrete or epoxy granite is becoming more popular for beds, bases, and other structures of precision machine tools, owing to its excellent damping characteristics. To realize the same static rigidity as that of the cast-iron structures, steel-reinforced epoxy granite (SREG) structures are being used. The vast differences in the thermal properties of steel and epoxy granite (EG) are likely to cause higher magnitudes of thermal error. This work aims to investigate the thermal behaviour of a computerized numerical control (CNC) lathe built with a novel dynamically enhanced SREG bed and compare its performance with the lathe with a cast iron bed. Experimental and numerical investigations have been carried out under cross-feed (CF) drive idle running conditions to determine the TCP deformation. The results reveal that the thermal error in the CNC lathe with SREG bed is 1.68 times that of the lathe with cast iron (CI) bed at 20 ºC and 1.8 times at 40 ºC environmental temperature variation chamber (ETVC) conditions. It could be identified that the heat generated in the CF is conducted to the steel guideways embedded in the SREG bed, but further heat transfer to the EG portion of the bed is impeded, and hence the heat accumulation that occurs in the guideways leads to higher magnitude of the thermal error. The experimentally validated numerical model is used to extend the investigations to study the effect of the idle running of the longitudinal feed drive (LF) and combined cross and longitudinal feed drives, on the thermal behaviour of the lathe.},
	issn = {0039-2480},	pages = {169-184},	doi = {10.5545/sv-jme.2022.356},
	url = {https://www.sv-jme.eu/article/thermal-investigations-on-cnc-lathe-fitted-with-dynamically-enhanced-steel-reinforced-epoxy-granite-bed/}
}
Venkata Ramana, M.,Thyla, P.,Subramanian, E.,Chinnuraj, S.
2023 February 69. Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 69:3-4
%A Venkata Ramana, Mula 
%A Thyla, Pudukarai Ramaswamy 
%A Subramanian, Elango 
%A Chinnuraj, Shanmugam 
%D 2023
%T Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed
%B 2023
%9 precision machine tools; thermal error; steel reinforcement; epoxy granite; 
%! Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed
%K precision machine tools; thermal error; steel reinforcement; epoxy granite; 
%X Polymer concrete or epoxy granite is becoming more popular for beds, bases, and other structures of precision machine tools, owing to its excellent damping characteristics. To realize the same static rigidity as that of the cast-iron structures, steel-reinforced epoxy granite (SREG) structures are being used. The vast differences in the thermal properties of steel and epoxy granite (EG) are likely to cause higher magnitudes of thermal error. This work aims to investigate the thermal behaviour of a computerized numerical control (CNC) lathe built with a novel dynamically enhanced SREG bed and compare its performance with the lathe with a cast iron bed. Experimental and numerical investigations have been carried out under cross-feed (CF) drive idle running conditions to determine the TCP deformation. The results reveal that the thermal error in the CNC lathe with SREG bed is 1.68 times that of the lathe with cast iron (CI) bed at 20 ºC and 1.8 times at 40 ºC environmental temperature variation chamber (ETVC) conditions. It could be identified that the heat generated in the CF is conducted to the steel guideways embedded in the SREG bed, but further heat transfer to the EG portion of the bed is impeded, and hence the heat accumulation that occurs in the guideways leads to higher magnitude of the thermal error. The experimentally validated numerical model is used to extend the investigations to study the effect of the idle running of the longitudinal feed drive (LF) and combined cross and longitudinal feed drives, on the thermal behaviour of the lathe.
%U https://www.sv-jme.eu/article/thermal-investigations-on-cnc-lathe-fitted-with-dynamically-enhanced-steel-reinforced-epoxy-granite-bed/
%0 Journal Article
%R 10.5545/sv-jme.2022.356
%& 169
%P 16
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 69
%N 3-4
%@ 0039-2480
%8 2023-02-10
%7 2023-02-10
Venkata Ramana, Mula, Pudukarai Ramaswamy  Thyla, Elango  Subramanian, & Shanmugam  Chinnuraj.
"Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed." Strojniški vestnik - Journal of Mechanical Engineering [Online], 69.3-4 (2023): 169-184. Web.  21 Jul. 2024
TY  - JOUR
AU  - Venkata Ramana, Mula 
AU  - Thyla, Pudukarai Ramaswamy 
AU  - Subramanian, Elango 
AU  - Chinnuraj, Shanmugam 
PY  - 2023
TI  - Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2022.356
KW  - precision machine tools; thermal error; steel reinforcement; epoxy granite; 
N2  - Polymer concrete or epoxy granite is becoming more popular for beds, bases, and other structures of precision machine tools, owing to its excellent damping characteristics. To realize the same static rigidity as that of the cast-iron structures, steel-reinforced epoxy granite (SREG) structures are being used. The vast differences in the thermal properties of steel and epoxy granite (EG) are likely to cause higher magnitudes of thermal error. This work aims to investigate the thermal behaviour of a computerized numerical control (CNC) lathe built with a novel dynamically enhanced SREG bed and compare its performance with the lathe with a cast iron bed. Experimental and numerical investigations have been carried out under cross-feed (CF) drive idle running conditions to determine the TCP deformation. The results reveal that the thermal error in the CNC lathe with SREG bed is 1.68 times that of the lathe with cast iron (CI) bed at 20 ºC and 1.8 times at 40 ºC environmental temperature variation chamber (ETVC) conditions. It could be identified that the heat generated in the CF is conducted to the steel guideways embedded in the SREG bed, but further heat transfer to the EG portion of the bed is impeded, and hence the heat accumulation that occurs in the guideways leads to higher magnitude of the thermal error. The experimentally validated numerical model is used to extend the investigations to study the effect of the idle running of the longitudinal feed drive (LF) and combined cross and longitudinal feed drives, on the thermal behaviour of the lathe.
UR  - https://www.sv-jme.eu/article/thermal-investigations-on-cnc-lathe-fitted-with-dynamically-enhanced-steel-reinforced-epoxy-granite-bed/
@article{{sv-jme}{sv-jme.2022.356},
	author = {Venkata Ramana, M., Thyla, P., Subramanian, E., Chinnuraj, S.},
	title = {Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {69},
	number = {3-4},
	year = {2023},
	doi = {10.5545/sv-jme.2022.356},
	url = {https://www.sv-jme.eu/article/thermal-investigations-on-cnc-lathe-fitted-with-dynamically-enhanced-steel-reinforced-epoxy-granite-bed/}
}
TY  - JOUR
AU  - Venkata Ramana, Mula 
AU  - Thyla, Pudukarai Ramaswamy 
AU  - Subramanian, Elango 
AU  - Chinnuraj, Shanmugam 
PY  - 2023/02/10
TI  - Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 69, No 3-4 (2023): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2022.356
KW  - precision machine tools, thermal error, steel reinforcement, epoxy granite, 
N2  - Polymer concrete or epoxy granite is becoming more popular for beds, bases, and other structures of precision machine tools, owing to its excellent damping characteristics. To realize the same static rigidity as that of the cast-iron structures, steel-reinforced epoxy granite (SREG) structures are being used. The vast differences in the thermal properties of steel and epoxy granite (EG) are likely to cause higher magnitudes of thermal error. This work aims to investigate the thermal behaviour of a computerized numerical control (CNC) lathe built with a novel dynamically enhanced SREG bed and compare its performance with the lathe with a cast iron bed. Experimental and numerical investigations have been carried out under cross-feed (CF) drive idle running conditions to determine the TCP deformation. The results reveal that the thermal error in the CNC lathe with SREG bed is 1.68 times that of the lathe with cast iron (CI) bed at 20 ºC and 1.8 times at 40 ºC environmental temperature variation chamber (ETVC) conditions. It could be identified that the heat generated in the CF is conducted to the steel guideways embedded in the SREG bed, but further heat transfer to the EG portion of the bed is impeded, and hence the heat accumulation that occurs in the guideways leads to higher magnitude of the thermal error. The experimentally validated numerical model is used to extend the investigations to study the effect of the idle running of the longitudinal feed drive (LF) and combined cross and longitudinal feed drives, on the thermal behaviour of the lathe.
UR  - https://www.sv-jme.eu/article/thermal-investigations-on-cnc-lathe-fitted-with-dynamically-enhanced-steel-reinforced-epoxy-granite-bed/
Venkata Ramana, Mula, Thyla, Pudukarai Ramaswamy, Subramanian, Elango, AND Chinnuraj, Shanmugam.
"Thermal Investigations on a CNC Lathe Fitted with a Dynamically Enhanced Steel-Reinforced Epoxy Granite Bed" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 69 Number 3-4 (10 February 2023)

Authors

Affiliations

  • PSG College of Technology, Department of Mechanical Engineering, India 1
  • Galaxy Machinery Pvt Ltd, India 2

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 69(2023)3-4, 169-184
© The Authors 2023. CC BY-NC 4.0 Int.

https://doi.org/10.5545/sv-jme.2022.356

Polymer concrete or epoxy granite is becoming more popular for beds, bases, and other structures of precision machine tools, owing to its excellent damping characteristics. To realize the same static rigidity as that of the cast-iron structures, steel-reinforced epoxy granite (SREG) structures are being used. The vast differences in the thermal properties of steel and epoxy granite (EG) are likely to cause higher magnitudes of thermal error. This work aims to investigate the thermal behaviour of a computerized numerical control (CNC) lathe built with a novel dynamically enhanced SREG bed and compare its performance with the lathe with a cast iron bed. Experimental and numerical investigations have been carried out under cross-feed (CF) drive idle running conditions to determine the TCP deformation. The results reveal that the thermal error in the CNC lathe with SREG bed is 1.68 times that of the lathe with cast iron (CI) bed at 20 ºC and 1.8 times at 40 ºC environmental temperature variation chamber (ETVC) conditions. It could be identified that the heat generated in the CF is conducted to the steel guideways embedded in the SREG bed, but further heat transfer to the EG portion of the bed is impeded, and hence the heat accumulation that occurs in the guideways leads to higher magnitude of the thermal error. The experimentally validated numerical model is used to extend the investigations to study the effect of the idle running of the longitudinal feed drive (LF) and combined cross and longitudinal feed drives, on the thermal behaviour of the lathe.

precision machine tools; thermal error; steel reinforcement; epoxy granite;