A.L. Vorontsov
The consideration of the elastic deformation of the tool to increase the accuracy of the theory of processing by pressure
The necessity of consideration of the elastic tool deformation to characterize some forming processes is shown оn the examples of reverse extrusion of glasses and closed die forging.
Keywords: elastic tool deformation; extrusion of glasses; closed die forging.
A.M. Shneiberg, O.S. Koshelev, F.P. Mikhalenko
Experimental study of the process of compacting chips using a combined method of pressing with torsion
Performed an experimental study of the process of compacting chips using a combined method of pressing with torsion. There are carried out evaluation of the effectiveness of the new process compared of conventional compression on the data obtained by measuring the density and hardness of copper and aluminum alloys chip-brick.
Keywords: compressing with torsion; chips; density; hardness.
O.I. Lisin, V.I. Filimonov, K.S. Dementiev, A.V. Filimonov
Strain hardening considerations in technological calculations relating to the sheet blank bending in roll-forming mashine rolls
There are given models and calculation procedures to determine stresses, bending moments and springback angles when the sheet blank is bent to a small radius in rolls.
Keywords: roll-formed profile; stress; bending moment; springback angle.
V.V. Karzhavin, I.V. Uhlow
Identification of rational forms of sheet bars for rotary drawing
The process of forming sheet bar for rotary drawing is investigated. It is established that forming on the cone reduces a lot the area of contact of billet with roller, decreases the axial tensile stress and increases the number of suitable axially symmetrical parts after rotary drawing.
Keywords: rotary drawing; tensile stress; contact pressure; taper angle; axially symmetrical part.
Yu.N. Loginov, A.A. Ershov
The shape control of the square billet in upsetting
Disc manufacturing method by cutting sheet on square billets with subsequent upsetting is investigated. Calculation of strain state by finite element method is carried out. Hindered deformation zones are identified. Experiments in terms of sediment square billets made. Parameters of friction and deformation, allowing the transition from the square cross section in circular cross-section revealed.
Keywords: upsetting; forming; strain; finite element method; QFORM.
E.I. Razuvaev, D.V. Kapitonenko
Features of the sheet metal forming of metal-base laminate materials
The results of the study the formability of aluminum alloy sheets side coated polyvinyl chloride film (PVC) technology and deep drawing of the bearing bushes of metal-base laminate. The peculiarities of stamping of metal-base laminate materials that need to be considered in the development process and design of die tooling.
Keywords: cold plastic deformation; metal plastic; PVC film; bending; deep drawing; stamping .
V.A. Glushenkov, G.V. Chertkov
The pipe reduction with combining static and dynamic loadings in terms of machine-building production
The technological scheme of the combined process of reduction of pipe billets with combining static and dynamic loadings is described; the construction and operation of the device, implementing the proposed technology, with the self-adjusting holder of drawing die and equipped with the inductor for pulse-magnetic processing are presented; the results of sampling of this device are given; the advantages of the suggested technical solutions are estimated.
Keywords: reduction; press-forging; pulse-magnetic technology; drawing die; technological equipment.
M.E. Taranenko
Forming possibilities of internal panel of a car door made of high-strength materials at electrohydraulic presses
Results of experimental forming of internal panel of a car door made of high-strength materials are considered. Recommendations for rational application of the method of increasing articles precision are obtained.
Keywords: electrohydraulic stamping; high-strength materials; electrode systems; matrix.
M.I. Poksevatkin, K.Yu. Dunaev, A.S. Lavrinenko, N.A. Belenko
Modeling of the process of monotonous stamping of the rod products
Developed model and algorithm parameters search punching rod products at levels above the longitudinal stability of the relative length of the landing of the workpiece based on monotone filling the die cavity.
Keywords: way of stamping; core products; longitudinal stability; billet; landing; monotony of the process.
D.A. Ponomarenko, V.A. Rozenenkova, A.V. Skugorev, S.Yu. Shishkov
Efficient use of protective technological coatings in isothermal stamping on the air of figurine-shaped parts from titanium alloys
The applications of protective technological coatings on the basis of glasses exam in isothermal stamping on the air of figurine-shaped parts from titanium alloys. It is shown the efficiency of using the coatings in isothermal deformation.
Keywords: titanium alloys; figurine-shaped parts; protective technological coating; isothermal stamping.