Vorontsov A.L., Karpov S.M., Stupnikov V.P.

Force Parameters and Form Changing of Blank at Plane Extrusion with Non Coaxial Arrangement of Punch and Die. Part 1. Kinematic and Stress States of Blank

On base of complete system of equations of plastic flow theory solution of the problem of kinematic and stress states of a blank at extrusion of U-shaped brackets under conditions of plane strain state in a general case of non-coaxial arrangement of a punch and a die is presented.
Key words: extrusion; non-coaxial arrangement of a punch and a die; plane strain state; plastic flow speed; stress.

Lyzhnikov Ye.I., Davydenko Ye.K.

Influence of Parameters of Flat Knife on Technological Process of Tube Cutting

Experimental research of tubes’ cutting process with a flat knife is presented. Impact of the knife configuration on cutting force, sequence of cutting waste forming and blank separation from the tube along the knife stroke are determined.
Key words: die; tube; cutting; flat knife; cutting waste.

Polyakov P.A., Kolmykov V.L., Polyakov A.P.

Research of Process of Pressing of Composites on Base of Vanadium-Containing Powder of Iron

Results of research of a pressing process of vanadium-containing powders of iron composites with additions of Zn, Cu, P, C are presented. Peculiarities of contraction of each of powder compositions are revealed. On results of measurement of hardness appraisal of strength properties of green powder blanks has been carried out.
Key words: pressing; powder; density; hardness; strength.

Ignatenko V.N., Golovina Z.S., Gnevashev D.A.

Development of Technological Process of Stamping Part “Break Cylinder Piston”

Experience of development and introduction of technology of cold bulk stamping of hollow axisymmetric part with a cover core has been described.
Key words: combined extrusion; direct and backward extrusion; hollow axisymmetric part.

Karzhavin V.V., Uhlov I.V., Shibeko S.G.

Intensification of Deep Drawing of Titanium Alloys Products

Results of experimental work of zinc coatings of titanium alloys blanks by means of treatment in molten salt are presented. It has been determined that such method of preliminary treatment allows intensification of processes of deep drawing of difficult-to-form materials.
Key words: deep drawing; titanium alloys; zinc coating; molten salt; irregularity factor.

Lomberg B.S., Razuvayev Ye.I., Moyseyev N.V., Ponomarenko D.A.

Isothermal Stamping of Difficult-to-Form Heat-Proof Nickel Alloys

Results of development and industrial exploration of technological processes of isothermal stamping of gas turbine engines discs and other parts of difficult-to-form heat-proof nickel and titanium alloys are presented. Isothermal units for specialized hydraulic presses and compositions of super heat-proof and scale-resistant materials have been designed. Specially developed coatings which simultaneously serve as a lubricant and thermal insulation have been used for protection of blanks from oxidation and gas saturation.
Key words: isothermal stamping; superplasticity; forget product; gas turbine engine discs; heat-proof nickel alloys.

Fainshmidt Ye.M., Pegashkin V.F., Astafyev G.I., Arifullina M.V.

Technological Processes of Boriding Tools of Hot Forming

Methods of raising service durability of hot stamping tools by means of liquid and electrospark boriding are considered.
Key words: durability; stamping tools; liquid and electrospark boriding; chemical thermal treatment.

Kargin S.B.

Perfection of Shafts Forging with Use of Profiled Dies

Design of profiled dies ensuring production of a forged trimerous blank from the ingot is offered. With the aid of finite elements method simulation of process of forging with the mentioned dies has been carried out. It has been determined that forging with profiled dies ensures working of the axis zone of an ingot, and design of the trimerous blank conditions additional macro shears at further drawing out.
Key words: forging; profiled dies; finite elements method; macro shears; drawing out; reduction degree; trimerous blank; ingot.

Movshovich I.Ya., Frolov Ye.A., Bondar O.V., Agarkov V.V.

Research of Parameters of Accuracy of Assembly of Modular Reconfigurable Rigging

Results of research of parameters of accuracy of assembly of modular reconfigurable rigging with use of composite materials are presented. Values of tolerances of links of dimension chains of modular reconfigurable dies are determined.
Key words: modular reconfigurable die; technological rigging; accuracy of assembly; composite material.

Galimov A.K., Utyashev F.Z.

Simulation of Structurization in Metals at Severe Plastic Deformation

Structural mechanical model of structurization at severe plastic deformation is offered. Population of macroscopic parameters of stress-strain state of metal under deformation and results of analysis of observed evolution of parameters of its structure are used for appraisal of numeral characteristics of the model.
Key words: structurization; intracrystalline shift; grain-boundary shift; strain; stress; dislocations density; structural-mechanical model.

Poksevatkin M.I., Treshchetkin Ye.V., Skorykh S.Yu.

Minimizing Metals Waste by Means of Elastic Deformation of Groove Wall of Closed Die

Optimization model of minimizing metal waste by means of elastic deformation of the groove wall of a closed die presented in the form of four-module algorithm has been developed.
Key words: elastic deformation; groove wall; die; forget product; metal waste; optimization model; prime cost of forget product.