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Thermal investigations on a CNC lathe fitted with a dynamically enhanced steel-reinforced epoxy granite bed
ID
Ramana, Mula Venkata
(
Avtor
),
ID
Pudukarai Ramaswamy, Thyla
(
Avtor
),
ID
Subramanian, Elango
(
Avtor
),
ID
Chinnuraj, Shanmugam
(
Avtor
)
PDF - Predstavitvena datoteka,
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(4,08 MB)
MD5: C489AC694A9BF5B22B0DF3CAA71BF04A
URL - Izvorni URL, za dostop obiščite
https://www.sv-jme.eu/sl/article/thermal-investigations-on-cnc-lathe-fitted-with-dynamically-enhanced-steel-reinforced-epoxy-granite-bed/
Galerija slik
Izvleček
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.
Jezik:
Angleški jezik
Ključne besede:
precision machine tools
,
thermal error
,
steel reinforcement
,
epoxy granite
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2023
Št. strani:
Str. 169-184
Številčenje:
Vol. 69, no. 3/4
PID:
20.500.12556/RUL-145175
UDK:
621.9
ISSN pri članku:
0039-2480
DOI:
10.5545/sv-jme.2022.356
COBISS.SI-ID:
148509187
Datum objave v RUL:
12.04.2023
Število ogledov:
953
Število prenosov:
63
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Objavi na:
Gradivo je del revije
Naslov:
Strojniški vestnik
Skrajšan naslov:
Stroj. vestn.
Založnik:
Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
ISSN:
0039-2480
COBISS.SI-ID:
762116
Licence
Licenca:
CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by-nc/4.0/deed.sl
Opis:
Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.
Sekundarni jezik
Jezik:
Slovenski jezik
Naslov:
Raziskava toplotnih lastnosti CNC-stružnice z dinamično izboljšano posteljo iz epoksi granita, ojačenega z jeklom
Ključne besede:
precizni obdelovalni stroji
,
termična napaka
,
jeklena ojačitev
,
epoksi granit
,
temperaturni raztezki
,
polimerni beton
,
postelja stružnice
,
dušenje
Projekti
Financer:
Drugi - Drug financer ali več financerjev
Program financ.:
Office of the Principal Scientific Adviser to the Government of India
Številka projekta:
SA/DRDP/MT/2010(G)
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