INCREASE OF THE OPERATING LIFE OF ACTIVE PARTS OF COLD-MOULDING TOOLS
Original scientific paper Heat treatment of active components of cold – moulding tools is a necessary operation to guarantee their functionality. The tools made by this method loose the required quality of durability and period of service and losses caused by their frequent exchange are high. One way we can stop it is by coating the active parts of pressing tools by thin, hard and abrasion resistant deposit that is suitable by definite method of the tool stress.
Identifying the cause of cutting tool failure by using simulation software
The article is aimed at identifying the causes of a cutting tool failure. The FEM simulation software was used to simulate the force load size. The numerical simulation was calculated for the original and optimized design of the cutting tool. Results of the analysis are a proposal for cutting tool optimization.
SR topography of plastically deformed Fe-Si bicrystals - observation in situ and post mortem
SR reflection topography was applied to study the interaction of slip dislocations with the grain boundaries in Fe-4at%Si bicrystals deformed by compression. Three experimental settings with either a white or monochromatic beam were used and the corresponding orientation contrast analysed. Dislocation transmission through the grain boundary was observed in bicrystals with favourable geometry of the slip systems.