• Advanced Functions of a Modern Power Source for GMAW Welding of Steel 

      Autor: Kolařík , Ladislav; Kolaříková , Marie; Kovanda , Karel; Pantůček , Marek; Vondrouš , Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper evaluates the use of a modern welding power source equipped with advanced arc control functions. At the Laboratory of Welding Technologies of CTU in Prague we have focused on GMAW welding of steel using Sigma ...
    • NON-DESTRUCTIVE INSPECTION BY INFRARED THERMOGRAPHY OF RESISTANCE SPOT WELDS USED IN AUTOMOTIVE INDUSTRY 

      Autor: Forejtová , Lucie; Zavadil , Tomáš; Kolařík , Ladislav; Kolaříková , Marie; Sova , Jan; Vávra , Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Resistance spot welding (RSW) is one of the main joining technologies of thin sheets in the automotive industry. Key factors affecting the strength of the RSW joint are the nugget diameter, asymmetry, expulsions, intended ...
    • Resistance Spot Welding of dissimilar Steels 

      Autor: Kolařík , Ladislav; Sahul , Miroslav; Kolaříková , Marie; Sahul , Martin; Turňa , Milan; Felix , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents an analysis of the properties of resistance spot welds between low carbon steel and austenitic CrNi stainless steel. The thickness of the welded dissimilar materials was 2 mm. A DeltaSpot welding gun ...
    • THE CHARACTERISTICS OF Al-Si COATING ON STEEL 22MnB5 DEPENDING ON THE HEAT TREATMENT 

      Autor: Kolaříková, Marie; Chotěborský, Rostislav; Hromasová, Monika; Linda, Miloslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The coating on the 22MnB5 steel is intended to protect it against oxidation during the forming process. This steel is hot-pressed. A preheating before the pressing and subsequent hardening in the tool affects the properties ...