Gryazev M.V., Pasynkov A.A., Platonov V.I.

Study of stress and strain state and accumulated during on-microinjuries bench in a conical tube stock matrix

In the article on the basis of mathematical modeling conducted by crimping tubular billet of a material that exhibits anisotropic properties of the dependence of the stress-strain state of the workpiece and the thickness of the resulting product from the initial anisotropy of the mechanical properties of the workpiece, the angle of taper of the matrix, the friction conditions in the contact surfaces of the working tool and the workpiece. The estimation of the value of micro-accumulated at the conical forming manufactured items from technological parameters crimp tube blanks process.
Keywords: strength; microdamages; crimping; matrix; punch; blank thickness.

Gryazev M.V., Larin S.N., Pasynkov A.A., Pillipenko O.V.

By the analysis of the results theoretical and experimental studies of power parameters crimp tube blanks

The article presents the final results of theoretical and experimental studies of round billets of steel power modes crimping process details. Studies were carried out for a wide range of values of the tool and workpiece dimensions. The results of experimental studies constructed a graph of changes in the relative strength of the crimping operation coefficient. Comparison of theoretical and experimental data on the power mode is indicated on their good coordination.
Keywords: strength; stability; crimp; matrix; punch; friction.

Larin S.N., Platonov V.I., Leonova E.V.

Investigation of geometric parameters of products from materials subject energy theory of plasticity and damageability obtained free isothermal deformation in a matrix squared

The article presents the ratios for the analysis of processes of isothermal deformation of a square slab fixed on a path by which established the influence of the loading of the law, the geometrical workpiece size, the anisotropy of the mechanical properties of the original material on the stress and strain state of the power modes and limits of the test process isothermal pnevmoformovki in short time creep associated with the accumulation of micro. The calculations were performed for aluminum alloy AMg6, whose behavior is described by the theory of power creep and damage. The influence of process time on the relative values of the thickness of the workpiece in the dome and place of its fastening on the workpiece height and the maximum amount of damage accumulated.
Keywords: pnevmoformovka; free deformation; cell voltage; strain; force.

Korotkov V.A., Platonov V.I., Larin S.N., Isaeva A.N., Lazarev V.A. 

Certain modes of isothermal forging based on the technological testing of samples of hard materials

The article presents the results of the analysis of experimental research articles isothermal forging of high-strength aluminum and titanium alloys. Studies were carried out to establish the temperature conditions of isothermal forging of new metals and alloys, and dwell time. As a result of statistical processing by the least squares method was the dependence of shape changes of the relative error of the sample temperature isothermal forging at different strain rates as a quadratic regression of solved equations with respect to temperature. The effect of time delay product molding and forming temperature on the accuracy of the size of the samples after forming.
Keywords: isothermal stamping; bending; experiment; stamp; springing.

Larin S.N., Charin A.V.

Deformation study of time on the formation of structural components stringer cylindrical section for materials subject energy theory creep and damage

In work on the basis of expressions to define security settings and defectiveness process pnevmoformovki elements stringer designs cylindrical cross-section in the mode of short-term creep for groups of materials that obey the energy theories of short-term creep and damage was ascertained impact deformation time of stress and strain state of the power modes, limiting capabilities process, the geometric parameters of the products obtained and unevenness.
Keywords: deformation; stress; strain; defect; cylindrical channels; the strength.

Panfilov G.V., Nedoshivin S.V., Suhonin V.A.

Analysis axisymmetric plastic flow in the metal forming processes

Technological regimes established axisymmetric plastic flow based on the conditions of full plasticity. Theoretically justified for major modes differential equations to numerically calculate the average pressure along the slip lines. For example, the problem of sediment cylinder arc cut on the side of the inspections and the improvement of previously established integral relationships for the analytical determination of the average stress along the slip lines.
Keywords: axisymmetric deformation; analytical method of slip lines; operational calculus; technological modes of the full terms of plasticity; sludge cylinder with cutout.

Suhonin V.A., Panfilov G.V.

Development of the technology of cold plastic forming comb connecting the coupling halves

The analysis of the kinematics of deformable material flow and distribution of contact pressure at stamping semi-finished steel connecting the coupling halves.A Multioperational cold stamping of these coupling halves to the manufacture of intermediate-complex intermediates. Multifactor experimental studies established a rational geometrical dimensions of the semi-finished products.
Keywords: comb connecting the coupling halves; multioperational cold stamping; planned multivariate experiment; multiple correlation and regression analysis.

Kuchar’ V.D., Malyshev A.N., Bessmertnaya Yu.V.

Exhausting high square boxes from the slab

Theoretical modeling of the drawing process of high square box of the slab in the radial and conical array-based software package QFORM 2D/3D v.7. Researches power modes, the stress-strain state and assessment of fracture criterion by Cockcroft - Latham. The influence of the geometry of the working tool on the course of the drawing process.
Keywords: hood; square box-like item; matrix; punch; strength; stress; strain; fracture.

Kuchar’ V.D., Pas’ko A.N., Begov P.Yu.

Research of process of manufacture of the wave guide of the irregular shape with one flange by method of the direct extrusion

Results of influence of geometrical parameters on process force at manufacture of a wave guide of the irregular shape are presented by method of a direct extrusion.
Keywords: wave guide; direct extrusion; method of terminating elements.