When turning many materials, especially such as high-alloyed steels and a some of non-ferrous metal alloys, long continuous chips are usually formed which clutter the working area machine tools dangerous for workers. One effective reliable methods chip breaking during is vibration cutting, when uniform motion cutter relative to workpeace process superimposed with an additional cutter. The use o...

Surface roughness is an important factor in metal cutting, and usually different surface characteristics are used to control the quality of machined surfaces. However, as cutting tool wears out during process, values change. In most cases, theoretical calculated without taking wear into account. For this reason, measured may differ from each other, tendency their change also be different. This ...

Being refractory and X-ray transparent, a boron-doped diamond (BDD) heater is considered an ideal heating element in multi-anvil apparatus under diamond-stable pressures. However, the extremely high hardness of makes it difficult to manufacture BDD tube, which, turn, hinders wide application heaters apparatuses. Here, I sintered machinable (MBDD) from mixture powder pitch (CnH2n+2) by its annea...

Hard coatings such as titanium nitride (TiN) and chromium nitride (CrN) are widely used in cutting and forming tools against wear and corrosion. In the present study, hard coating films were deposited onto AISI 1070 steels by a cathodic arc evaporation plating (CAVP) technique. These samples were subjected to wear in a conventional lathe for investigating the tribological behaviour of coating s...