DEFORMATION AND DESTRUCTION OF ELASTIC RIGID ENVIRONMENTS AT INFLUENCE OF WAVES OF DEFORMATIONS

Zhuravkov M.A., The Belarusian State University, Minsk, the Republik of Belarus

Pleskachevsky Yu.M., The A.V. Luikov Heat and Mass Transfer Institute of NAS of Belarus, Minsk, the Republik of Belarus

There is shown, that force or kinematics influence on elastic deformable environments causing in last wave of deformations, can have a wide range of consequences, down to occurrence of destruction zones of a material in paper. Thus in situations of occurrence of waves of deformations of the large amplitude under certain conditions can result joint or periodic influence of "insignificant" loadings. The examples of the solution of model tasks are given in paper. The prospects of process of controlled influence of waves of deformations on a condition of rigid environments and creation of applied technologies in various areas of the modern mechanics are described.

elastic deformable environments, wide range of consequences, "insignificant" loadings, rigid environments

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LAPPING OF BALLS MADE OF HARD-MAGNETIC SINTERED MATERIAL

Schetnikovich K.G., Belarusian National Technical University, Minsk, the Republic of Belarus

Construction of the instrument for lapping of the balls between coaxially installed lower drive disk and two rings (internal and external) is described. The internal ring is connected with rotary drive and provided with a conical bevel. The external ring is immovable and provided with ring groove for the balls disposition. During the processing the balls are moved along the ring path formed by four surfaces of the instrument having different velocities. Significant increase of the ball sliding velocity relative to the instrument allows to decrease the contact load on the balls and increase quality of the balls surface. Continuous position change of the instantaneous axis of the balls rotation provides high quality of the processing. Results of experimental investigations of the lapping process applied to the balls made of the hard-magnetic sintered material KC37 are presented.

rotary drive, external ring, drive disk, contact load

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ELECTRONIC MODEL OF PRODUCT - IS THE BASIS OF CURRENT MANUFACTURING

Gubitch L.V., the United Institute of Informatics Problems of the NAS of Belarus, Minsk, Belarus

Grivachevsky A.G., the United Institute of Informatics Problems of the NAS of Belarus, Minsk, Belarus

The role of electronic 3D model of product in current manufacturing is considered. The aspect of a model use by specialists (designers, engineers, technologists) are given.

3D model of product, current manufacturing

• Gubich, L.V. Avtomatizacija processov proektirovanija v mashinostroenii [Computer-aided design processes in the engineering]. Minsk, OIPI NAN Belarusi, 2002, 308 p.
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• Evchenko, K. Vybor geometricheskogo modelirovshhika [Choosing a geometric modeler]. SAPR i grafika [CAD and graphics], 2002, pp. 108-114.
• Bykov, A. Zhelaemoe i dejstvitel'noe v geometricheskom modelirovanii [The desired and the real in the geometric simulation]. SAPR i grafika [CAD and graphics], 2002, no. 1, pp. 15-20.
• Zhigulin, V. O tom, kak tverdoe telo mozhet byt' slishkom tverdym, ili Vzgljad na parametrizaciju sboku [About how a solid body can be too solid, or a Look on the parameterization]. SAPR i grafika [CAD and graphics], 2000, no. 1, pp. 87-90.
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USE OF SUCCESSIVE FORWARD AND SPINNING-BELT MOTION OF MASS BATCHS OF MAIN MACHINE-BUILDING PRODUCTS FOR MAGNETIC CONTROL OF THEIR QUALITY

Sandomirskiy S.G., the Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, the Republic of Belarus

Sinyakovich Ed.B., the OJSC “Minsk Motor Plant”, Stowbtsy, the Republic of Belarus

In the article we analyzed and generalized the principles of magnetic control of the mechanical properties of steel products in motion. The means for raising the sensibility of the control were developed. We report the outcome of application of magnetic non-dectructive testing of motor components at the Minsk motor plant.

magnetic control , magnetic non-dectructive testing, motor components

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