This paper presents the development of a measuring system for on line measurement of large hot workpieces in precision open die forging. The major advantage of the system is in achieving more accurate final dimensions of workpieces, reduction of finish allowance and reduced losses of workpiece material due to additional milling. Workpiece cross section is measured based on laser triangulation principle. A novelty in the developed measuring system is in avoiding light interferences from a hot glowing workpiece and workshop environment based on operation in green light spectrum and the use of difference imaging principle supported by laser switching. Workpiece dimensions are determined from the geometry primitives interpolated to the measured cross section. Measuring uncertainty, spatial resolution and environmental disturbances are analysed.
F.08 Development and manufacture of a prototype
COBISS.SI-ID: 14855195The presented invention relates to a method for writitng a pattern in a substrate and in particular to an improved method of forming a magnetic encoder scale by writing a pattern comprimising lines of different magnetic permeability in a stainless steel substrate.
F.08 Development and manufacture of a prototype
COBISS.SI-ID: 1584732Maraging alloys are a special class of steels with exceptional mechanical properties, suitable for critical and added value applications in aeronautical, aerospace engineering, and the tooling industry. Researchers have been studying several surface engineering techniques to enhance surface characteristics of maraging and tool steels with the aim of extending service life. The goal of the research presented in this paper was to investigate the influence of laser shock peening (LSP) pulse density and spot size on the surface integrity of X2NiCoMo18-9-5 maraging steel. Different pulse densities and spot sizes were chosen for this purpose. Surface integrity was analysed through roughness, residual stress, and microhardness measurements. The influence of each processing parameter was statistically evaluated using the analysis of variance (ANOVA) confirming a significant influence. LSP without the use of an absorbent coating generated high compressive residual stresses in the surface layer with relatively low surface roughness, a combination of characteristics which may have a beneficial influence on mechanical properties of 18% Ni maraging steel. According to the measurements taken in this research, maximal compressive residual stresses were not achieved using the smallest laser beam spot while maintaining constant pulse energy.
F.09 Development of a new technological process or technology
COBISS.SI-ID: 14837531Artice describes Analyses of a leaking styrene-acrylonitrile water-filter housings with NDT methods and optimization of joining technologies.
F.09 Development of a new technological process or technology
COBISS.SI-ID: 1618271The presented invention relates to a method for writitng a pattern in a substrate and in particular to an improved method of forming a magnetic encoder scale by writing a pattern comprimising lines of different magnetic permeability in a stainless steel substrate.
F.32 International patent
COBISS.SI-ID: 12577819