Актуальные проблемы в машиностроении №2 2015

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Actual Problems in Machine Building. 2015. N 2 Innovative Technologies
in Mechanical Engineering
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STAMPING OF THIN-WALLED WORKPIECES BY ACTIVATING
CONTACT FRICTION FORCES
Poksevatkin M. I., Ph.D. (Engineering), Professor, e-mail:
Ivanaiskii A. А., Ph.D. (Engineering), Associate Professor, e-mail:
German S. V., Ph.D. student, e-mail:
Basova E. M., Ph.D. student, e-mail:
I.I. Polzunov Altai State Technical University, 46 Lenin Prospekt, Barnaul, Altai region, 656038,
Russian Federation
Abstract
The process of thin-walled metal product manufacturing based on the activation of contact
friction forces by rotating the ejector (the matrix bottom) intensifies the flow of metal in the
deformation zone. Using the principle of minimum full deformation energy, qualitative
dependences of the deforming force using various schemes of contact force activation and various
friction values of the workpiece wall thickness were obtained. The use of the ejector with radial
wave troughs at its end strengthens the effect of contact friction force activation and significantly
improves the quality of products.
Keywords
stamping, thin-walled products, activation, the friction force