This paper presents the research based on experiment performing of the deep-drawing process with wall-thickness thinning. The corresponding measurement equipment was applied, where with the process analysis and with the applied stochastic modelling method, the physical mathematical model for the deep-drawing force is obtained, in the form: F i =  f ( ψ , s 1 , μ ). The applied modelling and simulation methods in this paper, can also be used for defining the optimal values of bigger number of the technological process parameters of deep drawing, with wall-thickness thinning, by the applied higher order mathematical model. Principally, it would relate to the reduction of the drawing force with the obtained products, according to the demanded quality along with the minimum energy consumption. DOI: http://dx.doi.org/10.5755/j01.mech.18.2.1563

Laser welding is becoming an essential procedure in Automobile industry. Compared to standard welding processes such as MIG/MAG and point welding, laser welding has distinct advantages, such as small strains, higher speed of welding, quality welds as well as high flexibility.These advantages are crucial in modern automo-bile industry since the quality and flawless accuracy of load bearing welds ensures safety and thus competitiveness of the final product. High welding speed and short cooling periods of the weld additionally increase productivityThis paper is a presentation of a simulation indus-trial robot laser welding of load bearing construction in automated production process. 3D simulation play very important role in robotics development. Today we can simulate every production process segment by using IT tools. This simulation process enables to develop new pro-duction processes with minimal costs.

The main goal of this paper is to get a mathema-tical model for the process of deep drawing force with the reduction of wall thickness. Mathematical model should have a correct analytic description of this deformation process and along with that a possibility to calculative deep drawing force and after that a possibility of optimization of the whole deformation process and force. In this paper experiment planning is presented, from defining significant factors (parameters), levels of variation, equipment for experiment performing, processing of receiving results with known analytic models and on the end structuring final mathematical model for deep drawing force.