Počet záznamov: 1
Measurement of weld joint parameters and their mathematical modelling
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$2 DOI 100 $a 20170921d2017 m y slo 03 ba 101 0-
$a eng 102 $a LV 200 1-
$a Measurement of weld joint parameters and their mathematical modelling $f D. Novák ... [et al.] 330 $a © 2017, Eesti Pollumajandusulikool. All rights reserved. The article deals with verifying of weld quality of weld joints created by laser beam welding technology, primarily in agricultural components such as reel screws. We presents both metallographic check of the weld structure using electron microscopy, RTG-microanalysis and micro hardness measurement as well as used mathematical models of the welding process and respective weld joints geometry. First the laser beam welding technology and concerned agricultural components are introduced. Further we specify individual steel types as well as laser types and we define specific welding parameters used in our measurements. We selected several samples of weld joints, which are further examined them in detail using optical microscopy, micro hardness measurements and RTG microanalysis. We further determined the weld shape, measured dimensions of individual weld joints as well as we checked the weld joints structure. We further introduced a mathematical model based on the program ANSYS. The model can simulate temperatures, speed field and tensions within the weld joint, basing on known thermal conductivity of the base material and specified welding conditions. Using the model, we can predict the shape of the weld and the temperatures within the material. Finally, individual welding parameters and obtained weld joint samples are briefly discussed and the applicability of the model is evaluated. 463 -1
$1 001 umb_un_cat*0289655 $1 200 1 $a Agronomy Research $v Vol. 15, special no. 1 (2017), pp. 1127-1140 $1 210 $a Tartu $c Estonian University of Life Sciences $d 2017 $1 011 $a 1406-894X $1 011 $a 2228-4907 606 0-
$3 umb_un_auth*0205364 $a steel 606 0-
$3 umb_un_auth*0048809 $a matematické modelovanie $X mathematical modeling $X mathematical modelling 615 $n 53 $a Fyzika 675 $a 53 700 -0
$a Novák $b Daniel $3 umb_un_auth*0007275 $p UMBFP07 $4 070 $9 25 $f 1952- $T Katedra techniky a technológií 701 -1
$a Kvasnová $b Petra $3 umb_un_auth*0143924 $p UMBFP07 $4 070 $9 25 $f 1978- $T Katedra techniky a technológií 701 -1
$3 umb_un_auth*0252127 $a Volf $b Jaromír $f 1954- $9 25 $4 070 701 -0
$3 umb_un_auth*0031121 $a Novák $b Viktor $f 1982- $9 25 $4 070 801 -0
$a SK $b BB301 $g AACR2 $9 unimarc sk T85 $x existuji fulltexy
Počet záznamov: 1