Automatic Welding, 2017, №03



2017 №03 (01)

DOI of Article 10.15407/as2017.03.02

2017 №03 (03)

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Avtomaticheskaya Svarka (Automatic Welding), #3, 2017, pp. 11-19
 

Modelling of temperature fields and stress-strain state of small 3D sample in its layer-by-layer forming

O.V. Makhnenko¹, A.S. Milenin¹, E.A. Velikoivanenko¹, N.I. Pivtorak¹ and D.V. Kovalchuk²

¹E.O. Paton Electric Welding Institute, NASU 11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
²PJSC SPE «Chervona Khvylya» 15 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: master@chervonahvilya.com
 
Abstract
A set of investigations on kinetics of temperature fields and stress-strain state of a tee section was carried out employing mathematical and computer modelling methods in order to optimize a process of layer-by-layer forming of titanium structural elements of aerospace designation by means of current xBeam 3D Metal Printer (xBeam) electron beam technologies. The results of investigations were used for temperature fields optimizing in order to provide uniform distribution on height and length of the product by selection of efficient time between deposition passes of forming beads and source alternating power. Besides, typical stress and strain fields, formed in the product during its manufacture, were shown as well as possibilities of application of processing methods for reduction of residual forming. 26 Ref., 2 Tables, 13 Figures.
 
Keywords: layer-by-layer forming, electron beam, temperature field, stress-strain state, optimizing, mathematical modelling
 
Received: 14.02.17
Published: 19.04.16
 
 
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