Study of thermal cycle and cooling rate of steel 30XΓCA single-pass weld joints

Abstract

The given article studies the changes in thermal cycle and cooling rates of steel 30XΓCA weld joints at various distances from the weld center using modern thermal imaging equipment. The analysis of the experimentally obtained and calculated thermal cycles showed that the calculated cycles almost match the experimental ones in terms of quality but the time distribution of calculated values is 4-5 times smaller than that of the experimental ones. On the base of experimental results and theoretical investigation of the thermal cycles for fusion-welding in CO ₂ we have developed an improved formula for calculating heat conduction for machine single-pass welding. The difference between the calculated and experimental values of thermal fields does not exceed 10%.

Original language	English
Title of host publication	Applied Mechanics and Materials
Pages	442-447
Number of pages	6
Volume	52-54
DOIs	https://doi.org/10.4028/www.scientific.net/AMM.52-54.442
Publication status	Published - 2011
Event	2011 1st International Conference on Mechanical Engineering, ICME 2011 - Phuket, Thailand Duration: 3 Apr 2011 → 4 Apr 2011

Publication series

Name	Applied Mechanics and Materials
Volume	52-54
ISSN (Print)	16609336
ISSN (Electronic)	16627482

Other

Other	2011 1st International Conference on Mechanical Engineering, ICME 2011
Country	Thailand
City	Phuket
Period	3.4.11 → 4.4.11

Keywords

Arc welding
Cooling rate
Temperature distribution
Thermal welding cycle

ASJC Scopus subject areas

Engineering(all)

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title = "Study of thermal cycle and cooling rate of steel 30XΓCA single-pass weld joints",

abstract = "The given article studies the changes in thermal cycle and cooling rates of steel 30XΓCA weld joints at various distances from the weld center using modern thermal imaging equipment. The analysis of the experimentally obtained and calculated thermal cycles showed that the calculated cycles almost match the experimental ones in terms of quality but the time distribution of calculated values is 4-5 times smaller than that of the experimental ones. On the base of experimental results and theoretical investigation of the thermal cycles for fusion-welding in CO 2 we have developed an improved formula for calculating heat conduction for machine single-pass welding. The difference between the calculated and experimental values of thermal fields does not exceed 10%.",

keywords = "Arc welding, Cooling rate, Temperature distribution, Thermal welding cycle",

author = "Chinakhov, {D. A.}",

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AB - The given article studies the changes in thermal cycle and cooling rates of steel 30XΓCA weld joints at various distances from the weld center using modern thermal imaging equipment. The analysis of the experimentally obtained and calculated thermal cycles showed that the calculated cycles almost match the experimental ones in terms of quality but the time distribution of calculated values is 4-5 times smaller than that of the experimental ones. On the base of experimental results and theoretical investigation of the thermal cycles for fusion-welding in CO 2 we have developed an improved formula for calculating heat conduction for machine single-pass welding. The difference between the calculated and experimental values of thermal fields does not exceed 10%.

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KW - Temperature distribution

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