Use of Welding Process Numerical Analyses as Technical Support in Industry. Part 1: Introduction to Welding Process Numerical Simulations

Abstract

Welding, as a modern and highly efficient technology, is presently applied in practically all industrial sectors. An increase in the number [1] Source URL: http://bulletin.is. gliwice.pl/article/use-welding-process-numerical-analysestechnical-support-industry-part-1

Numerical Simulation of Duplex Steel Multipass Welding

“…Such a type of analysis is based on an assumption that heat generated during plastic deformation is significantly lower than heat supplied by an electric arc. That is why it is possible to carry out thermal and mechanical analysis as two separate analyses one after the other [1][2][3][4][5].…”

“…Obtaining such data requires not only vast knowledge but also access to a wide range of laboratory examination focused on the mechanical and thermo-metallurgical properties of the materials used. Also knowledge concerning the welding process itself and the proper selection of boundary conditions poses a significant challenge for engineers wishing to apply this area of knowledge in their practical studies [1,2].However, even vast theoretical knowledge, often supported by extensive laboratory tests, is not sufficient for obtaining high accuracy of numerical analysis results using accidental tools. Software is of vital importance here.…”

Numerical Simulations of Modern Joining Techniques Illustrated with Examples of the FSW and EBW Methods

“…The use of numerical analysis software programmes provides engineers with great satisfaction resulting from significantly extended practical and theoretical knowledge. Having the foregoing at their disposal, engineers wishing to achieve assumed results can enjoy considerably greater flexibility when performing the optimisation of input parameters, welding sequence, fixing conditions and sequence as well as fixtures rigidity [1,2].…”

“…percentage distributions of ferrite, pearlite, martensite and bainite in steels as well as aluminium or titanium alloys (in relation to their structures), -HV hardness distributions, -austenite grain sizes, -distributions of strains, -distributions of stresses, -total plastic strain [1,2,3]. Numerical analyses of welding processes can be divided into the following areas where they help make decisions concerning the selection of a proper technological variant: 1.…”

“…In cases of such structures, welding sequence is of great importance as it is often very difficult and expensive to optimise welding operations involving prototypes because of the number of tests which would need to be performed. Numerical analyses enable testing various welding sequences and element fixing sequences without the necessity of stopping production lines and incurring high expenses [1,2]. Numerical analyses of welding processes can be used in relation to all of the conventional techniques as well as, because of recent developmental progression, in relation to cutting-edge techniques including friction stir welding (FSW), electron beam welding (EBW), laser welding or hybrid welding.…”