Lukasz Bohdal

Prof. Lukasz Bohdal

Koszalin University of Technology, Department of Mechanical Engineering, KOSZALIN, POLAND
orcid

Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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16 July 2020 in Materials
Verified
Journal Article
Open access
PDF file
Lukasz BohdalLukasz Bohdal
Lukasz Bohdal
Leon KukiełkaLeon Kukiełka
Leon Kukiełka
Stanisław LegutkoStanisław Legutko
Stanisław Legutko
Radoslaw PatykRadoslaw Patyk
Radoslaw Patyk
Mykola RadchenkoMykola Radchenko
Mykola Radchenko
This work presents experimental studies with numerical modeling, aiming at the development of guidelines for shaping aluminum alloy AA6111-T4, t = 1.5 mm thick, with the use of a shear-slitting operation. During the experimental tests, parametric analyses were conducted for the selected material thickness. For the purposes of the material deformation’s analysis, a vision system based on the digital image correlation (DiC) method was used. Numerical models were developed with the use of finite element analysis (FEA) and the mesh-free method: smoothed particle hydrodynamics (SPH), which were used to analyze the residual stress and strain in the cutting zone at different process conditions. The results indicate a significant effect of the horizontal clearance between knives on the width of the deformation zone on sheet cut edge. Together with the clearance value increase, the deformation zone increases. The highest burrs on the cut edge were obtained, when the slitting speed was set to v = 17 m/min, and clearance to hc = 6%t. A strong influence was observed of the horizontal clearance value at high slitting speeds on burr unshapeliness. The most favorable conditions were obtained for v = 32 m/min, hc = 0.062 mm, and rake angle of upper knife for α = 30°. For this configuration, a smooth sheared edge with minimal burr height was obtained.

28 March 2020
Verified
Book Chapter
Closed access
PDF file
ARAndrii Radchenko
Andrii Radchenko
Lukasz BohdalLukasz Bohdal
Lukasz Bohdal
ZYZongming Yang
Zongming Yang
BPBohdan Portnoi
Bohdan Portnoi
VTVeniamin Tkachenko
Veniamin Tkachenko

1 January 2019 in AIP Conference Proceedings
Verified
Conference Paper
Closed access
Lukasz BohdalLukasz Bohdal
Lukasz Bohdal
LKLeon Kukielka
Leon Kukielka
SŚSławomir Świłło
Sławomir Świłło
ARAndrii M. Radchenko
Andrii M. Radchenko
AKAgnieszka Kułakowska
Agnieszka Kułakowska

1 January 2019 in AIP Conference Proceedings
Verified
Conference Paper
Closed access
Lukasz BohdalLukasz Bohdal
Lukasz Bohdal
LKLeon Kukielka
Leon Kukielka
ARAndrii M. Radchenko
Andrii M. Radchenko
RPRadoslaw Patyk
Radoslaw Patyk
MKMarcin Kułakowski
Marcin Kułakowski
JCJaroslaw Chodór
Jaroslaw Chodór


1 August 2020 in Journal of Manufacturing Processes
Verified
Journal Article
Closed access
Lukasz BohdalLukasz Bohdal
Lukasz Bohdal
RPR. Patyk
R. Patyk
Katarzyna TandeckaKatarzyna Tandecka
Katarzyna Tandecka
SGS. Gontarz
S. Gontarz
DJD. Jackiewicz
D. Jackiewicz