Thermal properties of machined materials, which depend significantly on the change in cutting temperature, have a considerable effect thermal machining characteristics. Therefore, used for numerical simulation process should be determined depending temperature. To determine methodology and software-implemented algorithm were developed their calculation. This is based analytical models determina...

Chromium nitrides CrXN have attracted research interest due to their excellent wear and corrosion properties when are deposited on steels. Nevertheless, the considerable difference between steel expansion coefficients, microcracks delamination still persistent problems. In this regard, addressed generation of CrNX nanolayers, through an ion nitriding process, carried out hard chromium coated AI...

Release of nickel from nickel or nickel-plated metals, is often responsible for allergic contact dermatitis. However, the effect of nickel-bearing stainless steels is not weil known. ln this paper AISI 304, 316 and 430 type stainless steels, as weil as nickel and nickel-plated materials, are investigated. Three tests were carried out: electrochemical tests and leaching experiments in sodium chl...

Laser-based pre-heating of laser beam welding with a 3D scanning optics, applied to AISI 1045 steel, is studied. Laser heat-treatable steel challenging due martensitic hardening in combination defects. Pre-tempering aims the reduction cooling rates and microstructure within weld seam. An oscillating defocused was guided over surface for by means scanner optics. During pre-heating, power, speed ...