This study has confirmed the possibilities of using logging waste for the production of wood-composite material. The raw material for its manufacturing is the wood weaving made by flattening branches. An experimental study into the physical, mechanical, and technological properties of the wood-composite material made from the poplar branches has made it possible to determine its rational structure and the type of a binder. It has been established that ensuring the flat shape of the material requires that it should be formed of three mutually perpendicular layers. It is advisable to use urea formaldehyde resin as a binder for plates that are not exposed to the impact and static loads and are used indoors. When the material is to be applied under conditions of elevated loads and in places with high humidity, phenol-formaldehyde resin should be used. The rational pressing schedule parameters have been defined: temperature, t=180 °C; pressure, p=8 MPa; holding time, τ = 7 min., at which one can achieve a minimum deformation of plates after pressing. It has been pro ven that under these schedule parameters the holding time for the new wood-composite material to achieve the shape stabilization is also minimal; it is seven days. It has been determined that the new wood-composite material possesses the physical and mechanical properties similar to those of the OSB panels

Limitations dictated by educational programs and deadlines for their implementation in the educational process of vocational education institutions slow down the possibility of full familiarization and acquisition of relevant skills for working with 3D mo

Traditionally, for composite materials, glued wood and solid wood are used nondestructive methods of control that take into account the specific features of the object. Plywood is a non-metal anisotropic material of complex structure, so most non-destructive testing methods, such as magnetic and eddy current methods are excluded. For choosing a method, it should also be borne in mind that plywood is a large product and may have significant size defects. The shock method is easier to implement than other non-destructive testing methods, so it can be considered effective for plywood defectoscopy. The existing classical shock method is carried out by the absolute values of the deviations of the characteristics of the oscillatory processes of the plywood. Changing the variable factors of plywood may reduce the accuracy of the device being implemented. Therefore, a technique for improving the shock method by measuring the relative characteristics of the oscillation process was developed. Comparison with the known, most accurate ultrasonic method of control revealed that the highest correlation with ultrasound has such a parameter of the shock sensor as the coefficient of harmonic distortion, which gives reason to recommend the shock method for determining the area defect plywood.

48 articles. Low weight, resistance to temperature changes, good indicators of durability and strength, as well as environmentally friendliness, are the advantages of application of a given material. The development of various kinds of

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