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Analytic evaluation of rectilinearity of low rigidity shaft during hardening processes

Świć A., Draczew O., Taranenko V., Majdalawi S

Advances in Science and Technology. Research Journal

2013

Vol. 7, nr 17

10--13

The essential influence of the unevenness of temperature distribution while heating in the technological process on dimensions stability of low rigidity elements was shown. The new approach was applied to formulate mathematical models, which describe the elastic and inelastic behaviour of piece using transfer functions and block diagrams, allowing to use frequency method for evaluation of the behaviour of dynamic semifinished element as the rigid body.

The research on the technological system in deep holes chambering process

Świć A., Draczew O., Szot T., Majdalawi S.

Advances in Science and Technology. Research Journal

2012

Vol. 6, nr 16

7--12

Two-mass model of bitool chambering was introduced. Build on its basis mathematical model of deep holes chambering was used to conduct numerical analysis of the system. By optimizing parameters of machine-fixture-part-tool system one can reduce the time of transitory processes, increase dynamic rigidity and decrease tremblings level during deep hole chambering, what allows to increase their accuracy and machining efficiency.