Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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UPPER BOUNDS SPECIFIC FORCES COLD FORMING LOW FORGINGS IN CLOSED DIES

Antonyuk F.I. 1 Logutenkova E.V. 1
1 Moscow State Technical University n.a. Bauman
The results of investigation of power parameters of relatively low rainfall in closed-die forgings. The dependencies to determine the specific forces on the size of the low forgings, contact friction conditions and the degree of filling of the corners of the closed die. Upper bounds specific forces determined by the velocity field is kinematically possible and meet the experimentally observed zones of intense plastic deformation. Maximum height low forgings, subject to the conditions of contact friction and the radius in the corners of forgings, determined by minimization of the upper bound of the specific forces. Obtain rather simple and compact design dependence, the structure of which reflects the influence of the main technological parameters on the specific forces. The method of assessment used by the top using a single deformable regions and revealed a quantitative characterization of the relative height of the low forgings produced in closed dies.