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Modeling of the vibroacoustic dynamic system “machined workpiece-slide” of turning center 车削中心“被加工工件-滑动”振动声动力系统的建模
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2021-17-12-531-536
V. Bez’yazychny, A. Chukarin, P. Chumak
Settlement dependences on determining the vibration characteristics of the machined workpieces, taking into account geometric, physical and mechanical characteristics and the force impact from the side of the cutting tool are established. In determining the dependences the effective coefficient of vibration energy losses was taken into account, providing the required value of which, is achieved by reducing vibration in the source due to the use of vibration-absorbing materials.
沉降依赖于确定被加工工件的振动特性,同时考虑几何、物理和机械特性以及刀具侧面的力冲击。在确定相关性时,考虑了振动能量损失的有效系数,提供所需的值,通过使用吸振材料减少源中的振动来实现。
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引用次数: 0
Properties of the charge obtained by electrodispersing the waste of the alloy H20N80 in kerosene 在煤油中电分散H20N80合金废料所得电荷的性质
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2022-18-2-51-55
E. Ageeva, E.A. Bоbkov
The results of experimental studies the composition, structure and properties of the charge obtained from the waste of the alloy H20N80 in kerosene lighting are presented. It is described the technology of electrodispersing and justified the proposition about suitability of that method for producing new nichrome powder materials.
本文介绍了从煤油照明用H20N80合金废料中获得的电荷的组成、结构和性能的实验研究结果。介绍了电分散技术,并对电分散技术在制备新型镍铬粉末材料中的适用性提出了论证。
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引用次数: 0
Structure and properties of powders obtained by electrodispersion of corrosion-resistant metal waste in kerosine 耐腐蚀金属废料在煤油中电分散制备粉末的结构和性能
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2021-17-6-276-281
E. Ageeva, E. Ageev, A. Sysoev
The results of experimental studies of the structure and properties of electroerosive high-chromium powders obtained in kerosene are presented. The high efficiency of using the electrodispersing technology is shown, which provides for obtaining new corrosion-resistant powder materials suitable for industrial use at low energy costs.
介绍了在煤油中制备的电蚀高铬粉末的结构和性能的实验研究结果。电分散技术的高效应用,为低能耗、低成本获得适合工业应用的新型耐腐蚀粉末材料提供了可能。
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引用次数: 0
Influence of aluminum on structural-phase state, corrosion resistance and tribomechanical properties of composite coatings obtained by hypersonic metallization 铝对高超声速金属化复合涂层结构相态、耐蚀性和摩擦力学性能的影响
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2022-18-1-18-23
A. Grigorchik, V. Kukareko, E. Astrashab, M. Belotserkovsky, A. V. Sosnovsky
The structural-phase state, tribotechnical and durometric properties of hypersonic coatings made of steels 95Cr18 and 06Cr19N9T, as well as pseudo-alloys 95Cr18—AD1 and 06Cr19Ni9Ti—AD1, obtained by hypersonic metallization, have been investigated. It was found that the sprayed coatings from pseudo-alloys 95Cr18—AD1" and 06Cr19Ni9Ti—AD1 contain mainly α-Fe, which is due to alloying of steel particles in the process of spraying with aluminum. It is shown that coatings made of 95Cr18 and 06Cr19Ni9Ti steels have a higher wear resistance under dry friction conditions as compared to composite coatings. The reduced wear resistance of pseudo-alloys is associated with the presence of a large amount of relatively soft aluminum in them. It is shown that the corrosion resistance of a composite coating made of Fe—Al in a 10 % aqueous solution of NaCl is about 2 times higher than that of coatings made of high-chromium steels 95Cr18 and 06Cr19Ni9Тi.
研究了采用高超声速金属化工艺制备的95Cr18钢和06Cr19N9T钢及伪合金95Cr18 - ad1和06Cr19Ni9Ti-AD1的高超声速涂层的组织相态、摩擦技术和硬度性能。结果表明:95Cr18-AD1”和06Cr19Ni9Ti-AD1伪合金的喷涂层中主要含有α-Fe,这是由于钢颗粒在喷铝过程中合金化所致。结果表明,95Cr18和06Cr19Ni9Ti钢的涂层在干摩擦条件下的耐磨性优于复合涂层。伪合金的耐磨性降低与其中存在大量相对软的铝有关。结果表明,Fe-Al复合涂层在10% NaCl水溶液中的耐蚀性是高铬钢95Cr18和06Cr19Ni9Тi复合涂层的2倍左右。
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引用次数: 0
Simulation of wear process of wear-resistant coated die tool in sheet stamping operations 板料冲压过程中耐磨涂层模具磨损过程的仿真
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2022-18-6-246-252
O. I. Morozov, V. Tabakov, V. Kokorin, D. I. Morozov, M. Ilyushkin, E. Kornyakov
The issues of mathematical modeling of the processes of wear of a die tool with wear-resistant coatings based on titanium nitride are considered.
研究了氮化钛耐磨涂层模具磨损过程的数学建模问题。
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引用次数: 0
Technological features of anode dissolution in a combined hardening treatment when developing high-speed rotors 高速转子复合硬化处理中阳极溶解的工艺特点
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2021-17-12-555-557
V. Sokol'nikov, G. Suhochev, S. Kodentsev
Is studied of the features of anodic dissolution in the process of local combined processing of metal removal points with surface defects arising during balancing of high-speed rotors in connection with the softening of working surfaces from unwanted technological heredity. The ways of improving the processes of their technological refinement using local hardening methods are shown, calculation formulas are given technological parameters of the anode process.
研究了高速转子平衡过程中产生表面缺陷的金属去除点局部组合加工过程中阳极溶解的特征,并与不良工艺遗传引起的工作面软化有关。介绍了采用局部硬化法对其工艺精化工艺进行改进的方法,给出了阳极工艺参数的计算公式。
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引用次数: 0
The influence of process of manufacturing and heat treatment on performance and dimensional stability of the Cu—Ni—Si alloy 研究了制备工艺和热处理工艺对Cu-Ni-Si合金性能和尺寸稳定性的影响
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2021-17-8-356-360
P. A. Golovkin, M. Milutinovich
The possibilities of improving the properties and increasing the dimensional stability of material of the special Cu—Ni—Si alloy for the parts of electric vacuum microwave devices by the deformation and heat-treatment methods are analyzed.
分析了采用变形和热处理方法改善真空微波器件零件专用铜镍硅合金材料性能和提高材料尺寸稳定性的可能性。
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引用次数: 0
Technological parameters of gas-dynamic spraying affecting the formation coating based on mixture of particles copper, zinc and corundum 气动力喷涂工艺参数对铜、锌、刚玉混合颗粒地层涂层的影响
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2021-17-10-455-460
V. E. Arhipov, G. Moskvitin, M. Pugachev
The results of a study of the effect of the spraying temperature and the overlap coefficient on the formation of the coating structure based on a mixture of Cu, Zn and Al2O3 particles applied by cold gas-dynamic spraying are presented. X-ray diffraction analysis has shown a decrease in the size of coherent scattering regions (CSR) from 200 nm to 90 nm for copper and to 64 nm for zinc when using an overlap coefficient of 55 % and more significant (up to 22 nm) with an overlap of 64 %. The CSR sizes of electronic type compounds CuZn3 (ε-phase) and Cu5 Zn8 (γ-phase) are quite close to the CSR size of zinc. The microdeformation of copper decreases from 187 to 119 % with an increase in the deposition temperature and does not depend on the overlap coefficient. For the electronic compound of the ε-phase, the microstrain value increases, and the γ-phase decreases by 2 times (from 0.31 to 0.17 %). The mass fraction of aluminum oxide (corundum) decreases from 5.4 to 2.2 % with an increase in the spraying temperature. The use of the maximum spraying temperature of 450 °C is accompanied by the formation of zinc oxide, the mass fraction of which is 4.3 % with 64 % overlap.
本文研究了喷涂温度和重叠系数对Cu、Zn和Al2O3混合粒子冷气动力喷涂涂层结构形成的影响。x射线衍射分析表明,当使用55%的重叠系数时,铜的相干散射区域(CSR)的大小从200 nm减少到90 nm,锌的相干散射区域(CSR)减少到64 nm,而更显著的(高达22 nm)重叠为64%。电子型化合物CuZn3 (ε-相)和Cu5 Zn8 (γ-相)的CSR尺寸与锌的CSR尺寸非常接近。随着沉积温度的升高,铜的微变形从187%减小到119%,并且与重叠系数无关。对于ε-相的电子化合物,微应变值增加,而γ-相的微应变值下降了2倍(从0.31%降至0.17%)。随着喷涂温度的升高,氧化铝(刚玉)的质量分数从5.4%下降到2.2%。使用时最高喷涂温度为450℃,伴随着氧化锌的形成,其质量分数为4.3%,重叠度为64%。
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引用次数: 0
Tribological properties study of MoS2 coatings deposited by MoS2 target magnetron sputtering under various modes 不同模式下靶磁控溅射制备MoS2涂层的摩擦学性能研究
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2022-18-6-258-265
O.E. Alikhanov, A. I. Belikov, V. Kalinin, S. Karpukhin, A. I. Semochkin
The article is devoted to the study of the process various modes influence on the tribological characteristics of the thin-film solid lubricant MoS2-coatings deposited by the MoS2-target magnetron sputtering in an argon medium. Temperature and bias voltage on the substrate, as well as the coating thickness influence on the coatings coefficient of friction and the wear life is shown.
本文研究了在氩气介质中磁控溅射制备二硫化钼固体润滑剂薄膜涂层的工艺模式对涂层摩擦学特性的影响。结果表明,温度、基底上的偏置电压以及涂层厚度对涂层摩擦系数和磨损寿命的影响。
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引用次数: 0
Effect of shears between particles of mouldable iron powder on strength of manufactured parts 可塑铁粉颗粒间剪切对制件强度的影响
Pub Date : 1900-01-01 DOI: 10.36652/1813-1336-2022-18-6-266-275
A. M. Dmitriev, N. Korobova
With a view to increase the strength of the products, two schemes have been developed for forming iron powders. Schemes involve intensive shifts between iron particles. One of the schemes is designed for forming billets, which after their sintering are deformed in dies without heating. The second of the schemes is designed for manufacturing directly at the stage of compacting the powder of conical thin-walled bushings of variable cross-section. As a result of the shifts between the particles, the densities of the molded billets were achieved, which allowed them to be tested for shear strength up to the sintering stage. The dependences between the density in the sections of the molded billet, its hardness and strength after sintering are experimentally determined. The dependence of the shear stress on the work piece on its molding scheme, the effect of magnetic pulse processing (MPP), and the powder composition is studied and described by the regression equation. The dependence of strength distribution in manufactured thin-walled bushings on the place of its measurement, the impact of MPP and powder composition is described similarly.
为了提高产品的强度,研究了两种铁粉的成型方案。方案涉及铁粒子之间的密集移动。其中一种方案设计用于成形坯料,坯料烧结后在模具中不加热变形。第二种方案是针对变截面锥形薄壁衬套粉末压实阶段直接制造而设计的。由于颗粒之间的转移,成型坯料的密度得到了实现,这使得它们可以在烧结阶段进行剪切强度测试。通过实验确定了铸模坯料的密度与烧结后坯料的硬度和强度之间的关系。研究了工件剪切应力对成形方案、磁脉冲加工(MPP)效果和粉末成分的依赖关系,并用回归方程描述了剪切应力对粉末成分的影响。制造薄壁衬套的强度分布依赖于其测量地点、MPP和粉末成分的影响。
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Strengthening Technologies and Coatings
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