Open Access Conference Proceedings

Abstract: In small companies, the machining chips of their production are sometimes not processed. Therefore, their use is discussed in the article. [..] Read more

Abstract: Low carbon steels are used in variety of structural states. One of the most used is fine grained dual or multi-phase structure with prevailing ferrite. [..] Read more

Abstract: The world trend of steelmaking forwards to economical steel production with continuously increasing demands on the quality of produced steel. This fact causes increasing production of micro alloyed steel at the expense of production of conventional steel. [..] Read more

Abstract: History of foundry, as metal casting process, has a significant meaning regarding the overall history. With the gradual development of foundry processes, as well as improvement of technology and mechanical procedures, led to the creation of several technological epochs. [..] Read more

Abstract: Method DRECE (Dual Rolls Equal Channel Extrusion) belongs to a perspective group of technologies utilizing the process of severe plastic deformations (SPD). Used for forming of metallic materials. [..] Read more

Abstract: Biology-inspired algorithms represent a set of various techniques which can be used e.g. in the case of high-nonlinear approximation tasks. [..] Read more

Abstract: The cold pressing of thin sheets is one of the dominant methods of manufacturing vehicle construction elements. These methods are constantly improving due to the production needs in an increasingly efficient way - economically and technologically effective. [..] Read more

Abstract: The influence of initial soaking and parameters of hot plastic working on the deformability and microstructure of the IN 718 superalloy have been presented. The research was performed on a torsion plastometer in the range of temperatures of 900 – 1,150 °C, at a strain rates of 0.1 s-1 and 1.0 s-1. [..] Read more

Abstract: In the paper working conditions and requirements for cylinders of hydraulic actuators, used in mining roof supports to protect the roof of workings in underground coal mines are discussed. Significant functional effects that can be obtained by using the surface strain hardening of internal surfaces of cylinders of hydraulic actuators are indicated. [..] Read more

Abstract: With using of the simulator HDS-20, the strength and plastic properties of two selected low-alloyed Cr-Mo steels, which were differing by carbon and manganese content, were experimentally investigated. By a special test consisting of loading of tested specimen by the small constant tensile force of 80 N in the whole course of his heating, the nil-strength temperature of the investigated steels was determined. The steel with the higher carbon content showed about of 42 °C lower nil-strength temperature. [..] Read more

Abstract: Within the last year and for the first time worldwide, the innovative twin-roll casting process has been implemented for magnesium wire at the pilot plant at the Institute of Metal Forming of TU Bergakademie Freiberg. The aim of this study is to present a new process route via continuously twin-roll casting AZ31 magnesium alloy wires. [..] Read more

Abstract: The assembling elements that were formed bimetallic billet in T-shape were chosen for lap joints creating of workpieces from thin sheets of metallic (Fe-Fe, Fe-Al) as well as metallic – nonmetallic (Fe-PMMA, Al-PMMA) materials by Resistance Element Welding method (REW). The tubes of Cu 99.9 with dimensions 4 mm x 0.5 mm and a length of 11 mm filled with a brazing solder Sn60Pb40 were used for the elements producing. [..] Read more

Abstract: Due to the improvement of efficiency of power equipment (heat exchanger), it has been required to change the arrangement of exchanger tube bodies through the minimization of exchanger tubes bending radius. It was necessary to optimize process parameters and functional parts of forming tool to achieve the required parameters of tube bending. [..] Read more

Abstract: On the hot deformation simulator HDS-20 uniaxial compression tests of two nickel superalloys supplied in the molded state were performed. The cylindrical specimens were heated at rate of 10 °C·s-1 directly to the deformation temperature (i.e. [..] Read more

Abstract: The paper contains results of theoretical and experimental research on the bending process of tube with dimensions of 530 mm x 90 mm, used in production of power pipelines of X10CrWMoVNb9-2 steel grade. The innovative process of pipe bending with the use of local induction heating and results of its numerical simulation (FEM) were presented. [..] Read more

Abstract: The paper deals with the possibilities of the determination of the hot deformation activation energy and the flow stress course at hot forming conditions. By means of the Gleeble 3800 plastometer, the set of uniaxial compression tests has been carried out for the AISI 4140 steel. [..] Read more

Abstract: The article presents tests results of metalforming of magnesium alloy. Materials for tests were ingots sized  40 x 90 mm from magnesium alloys marked with symbol WE43, AZ61. [..] Read more

Abstract: In this study, hypoeutectic AlCu5 alloy and AlCu25 alloy in the as-cast condition were severely plastically deformed by extrusion combined with reversible torsion (KoBo) method to produce ultrafine grained structure. Scanning transmission electron microscopy (STEM), scanning electron microscopy (SEM) were used for microstructure characterization. [..] Read more

Abstract: Regarding tool wear and energy consumption when forging steel parts, tailored preform geometries are beneficial. In particular, the number of forging steps can be reduced, in comparison to conventionally rolled cylindrical stock material, if preformed billets are used. [..] Read more

Abstract: The technological process of rolling of seamless tube consists of three stages. In the first of them, a thimble - shaped hollow is produced from the cast ingot (usually square), which in the second stage is rolled into the thimble. [..] Read more