employee
Bryansk, Bryansk, Russian Federation
The accurate shape obtaining is the most significant, but far from being the only problem which is solved at parts produc-tion. Not less important are also such properties as elasticity, plasticity, strength and durability and so on. It is well-known that high-temperature influence upon billet material which follows any of known processes of additive processing ad-versely affects the above-mentioned properties. The most significant task of additive techniques is ensuring material qua-litative structure and high operating properties in a part manufactured at multiple increase of productivity. The purpose of theoretical and practical researches carried out consists in the development of the technology in which to the processes of additive and subtractive treatment there is added a process of hardening with shock wave deformation that allows structuring, strengthening, compacting the material of a layer grown forming compressive stresses instead of tensile residual stresses of thermal origin. The growth of a part is carried out by means of arc deposition with wire materi-al. Such an approach ensures productivity by an order higher, but has such drawbacks as defects of structure, considerable porosity and low accuracy in comparison with powder additive techniques. The drawbacks mentioned are compensated by strengthening and machining in the course of product manufacturing. The research methods - a comparative analysis of the structure of iron-carbon material manufactured with the use of additive-subtractive techniques and additive-subtractive strengthening techniques. Results and conclusions. In strengthened material, in contrast to non-strengthened one there are no practically hidden cavities. The dimensions of phase elements of ferrite and pearlite in material manufactured according to the technology with strengthening decrease by more than five times. Hardness of material grown with strengthening exceeds more than twice hardness of material manufactured without strengthening.
additive techniques, subtractive treatment, hardening, hardness, strengthened material
1. Kirichek A V and Solov´ev D L 2001 The methods of dynamic surface strengthening by plastic deformation Kuznechno-Shtampovochnoe Proizvodstvo (Obrabotka Metallov Davleniem) 7 28-32
2. Kirichek A V, Solov´ev D L and Silant´ev S A 2002 Impact device for static-pulse deformation working Kuznechno-Shtampovochnoe Proizvodstvo (Obrabotka Metallov Davleniem) 10 35-40
3. Kirichek A V, Soloviev D L and Altuhov A Yu 2014 Deformation Wave Hardening of Metallic Materials Journal of Nano and Electronic Physics 6(3) 03069(4pp)
4. Kirichek A V, Solov´ev D L and Silant´ev S A 2004 Influence of regimes of static-pulse processing on uniformity of superficial layer hardening Kuznechno-Shtampovochnoe Proizvodstvo (Obrabotka Metallov Davleniem) 2 13-17
5. Kirichek A V, Soloviyov D L and Lazutkin A G 2004 Techniques and equipment for static-pulse processing with surface plastic deformation. Technologist’s Library Мoskau: Mechanical Engineering pp.288
6. Lazutkin A G, Kirichek A V, Stepanov Yu S and Soloviyov D L. 2005 Loading Mechanics of Wave Strain Surface Мoskau Mechanicl Engineering-1 pp.149
7. Kirichek A V and Solov´ev D L 2008 Creating heterogeneous surface structures by static-pulsed treatment Russian Engineering Research 28(3) 277-279
8. Kirichek A V and Soloviev D L 2013 Properties and Technology for Quasi-Composite Blanket Using Natural Reinforcement of the Metal by Strain Affected Areas Journal of Nano and Electronic Physics 5(4) 04010(5pp)
9. Kirichek A V, Soloviev D L and Altuhov A Yu 2014 Production of a Quasicomposite Surface Layer of a Metal Material by Shock Wave Strain Hardening Journal of Nano and Electronic Physics 6(3) 03070(4pp)
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12. Kirichek A V and Soloviev D L 2013 Nanostructure Changes in Iron-Carbon Alloys as a Result of Impulse Deformation Wave Action Journal of Nano and Electronic Physics 5(4) 04009(4pp)
13. Kirichek A V, Kuzmenko A P, Soloviev D L, Barinov S V, Altukhov A Yu, Silantiev S A, Grechukhin A N, Than Myo Min and Dobromyslov M B 2015 Dimensional Effects in Micro- and Nanostructural Changes in Grain and Intragrained Structure of Steel 45 at Static-pulse Treatment Journal of Nano and Electronic Physics 7(4) 04023(4pp)
