contact zone

CONCRETE ON QUARTZITE AGGREGATES

In the post-war period, Ukraine will need a large number of aggregates to repair and rebuild destroyed and damaged objects of transport infrastructure, including roads, airfields, and parking lots. To expand the raw material base of such construction, in addition to traditional high-quality aggregates from crushed granite, quartz sand and manufactured sand, it is advisable to use some types of waste and secondary products from various industries. They must meet the basic requirements for density, strength, frost resistance. These include a by-product of iron ore mining, quartzite.

Адаптивні елементи механізмів затиску автоматизованого обладнання для токарної обробки

The scientific paper deals with the theoretical investigations results of turning clamping chucks adaptive clamping elements made by intentional imposition of deformation zones in their design. The estimation of clamping conditions in the contact zone between adaptive clamping elements and clamping surface was carried out with a help of CAD/CAE systems. The stress state of the given clamping cam adaptive zone was analyzed