8 articles in this issue
Vasil Ivasiv,Andriy Yurych,Sergii Zabolotnyi,Lidiia Yurych,Vasyl Bui,Orest Ivasiv
At present, the most common tools for drilling operations are those rock-destroying ones that are equipped with cutting elements made from polycrystalline diamonds (PDC) and diamond carbide inserts (DCI). Given this, it is a relevant task to study the inf... see more
Tetiana Nadryhailo,Viktor Vernyhora,Alexander Korobochka,Alexander Sasov
Thousands of tons of metal-containing sludge are produced every month at machine-building, especially bearing producing and metallurgy enterprises where is processed. In the production of bearings, up to 10.0 thousand tons of sludge containing up to ... see more
Serhii Pozdieiev,Kostiantyn Myhalenko,Vitalii Nuianzin,Oleh Zemlianskyi,Tetiana Kostenko
Explosive concentrations of various substances can accumulate inside industrial premises. In the presence of a sufficient amount of oxygen and an ignition source, such a situation could lead to explosion that may result in the destruction of building stru... see more
Yevgen Burdun,Vladimir Kochanov,Tetyana Yuresko
Conical deep-sea portholes (CDSP) from acrylic are widely used in underwater equipment. Due to the specific properties of acrylic, operating conditions and the stress-strain state of CDSP, it is difficult to evaluate service life and choose optimal geomet... see more
Emin Musa Afandiyev,Mahamadali Nuraddin Nuriyev
An analysis of the discarded drill pipes that had been used in wedge grips has revealed that the main reason for pipe rejection is the reduction of a pipe wall as a result of plastic deformations, due to damaging the pipe surface by the die teeth. The lon... see more
Alla Slavinska,Oksana Syrotenko,Oksana Dombrovska,Victoriia Mytsa
The reported research into the influence of a database on the processes of universal design formation has established a mechanism for the interactive application of clusters of size-based attributes. It has been proven that the typological series of a str... see more
Stanislav Popov,Sergiy Gnitko,Anatoly Vasilyev
A method has been proposed for machining the outer and inner conical surfaces of the wrist pin and insert, which represent a sliding friction pair on the mortar mixer frame. The machining implies the application on the conical surface of parts, preliminar... see more