The ultrasonic burnishing of cobalt-chrome and stainless steel surface made by additive manufacturing

Salmi, Mika; Huuki, Juha; Ituarte, Iñigo Flores

doi:10.1007/s40964-017-0017-z

Cited by 41 publications

(16 citation statements)

References 21 publications

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“…Results were diverse, but hardness improvement was detected on the surfaces after the VABB process. The same system was used on stainless steel additive manufactured parts by Salmi et al (2017), with positive results.…”

Section: Introductionmentioning

confidence: 97%

Development, characterization and test of an ultrasonic vibration-assisted ball burnishing tool

Jerez-Mesa

Travieso-Rodríguez

Gómez-Gras

et al. 2018

Journal of Materials Processing Technology

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This paper presents the design and characterization of an ultrasonic vibration-assisted ball burnishing (VABB) tool on Ti-6Al-4V. This process is based on the modification of conventional ball burnishing, by means of the addition of a 40-kHz vibratory force to the burnishing preload exerted by the spring inside the tool. For the purposes of successfully executing the process, a new tool is designed through the assembly of different modules responsible for the various aspects involved in it. That design is hereby presented. Then, a methodology comprising acoustic emission and high frequency sampling is proposed to characterize the functioning of a prototype manufactured according to the previously presented design. The set of techniques deployed to measure the performance of the VABB prototype is presented as a feasible means of characterizing this sort of advanced manufacturing tools, especially like this one which is governed by ultrasonic frequencies. Last of all, the prototype is tested on a Ti-6Al-4V surface to validate it. The superior results of VABB, compared to the non-assisted version of the process, is shown in terms of average and total surface roughness, as well as surface hardness. The highest improvement is achieved by applying the VABB process with 300 N and 5 passes. The effectiveness of the designed prototype is confirmed, and places this kind of VABB tools as inexpensive systems to successfully execute an innovative finishing process for industrial components.

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Section: Introductionmentioning

confidence: 97%

Development, characterization and test of an ultrasonic vibration-assisted ball burnishing tool

Jerez-Mesa

Travieso-Rodríguez

Gómez-Gras

et al. 2018

Journal of Materials Processing Technology

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“…In general, the upper and lower plates of a honeycomb aluminum plate are made of a composite material [28], which makes the comprehensive temperature difference of the honeycomb aluminum plates poor. Therefore, the upper and lower two layers of the honeycomb aluminum plate discussed in this paper were also made of a composite material with a thickness of 1 mm [45] and are shown in Figure 4, where x, y, and z are 100 mm, 100 mm, 6 mm, respectively. The material performance of the core and upper and lower plates are shown in Table 3.…”

Section: Performance Analysis Of Honeycomb Aluminum Platementioning

confidence: 99%

Performance Optimization and Verification of a New Type of Solar Panel for Microsatellites

Teng

Zheng

Jin

2019

International Journal of Aerospace Engineering

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In this paper, a new method of replacing the conventional honeycomb aluminum panel with 3D metal printing on the microsatellite is presented. The multiobjective optimization method is used to optimize the temperature difference, compression strength, shear strength, and weight of the new type of solar panel structure. The relationships between the structural parameters and optimization targets are established, and the influence of five factors on thermal and structural properties is analyzed. Finally, a group of better structural parameters of the panel is obtained. The relative deviations between simulation analysis and model are 27.45%, 6.12%, 1.365%, and 3.27%, respectively. The optimization results show that the regression model can be used to predict thermal and structural properties of the panel, and the establishment of the model is effective. The analysis results show that the performances can be improved by 91.62%, 46.94%, 17.91%, and 10.28%, respectively. The optimized results are used for 3D metal printing, and the new type of solar panel is obtained. It is proved that the method can effectively improve the thermal and structural properties of the panel and can effectively shorten the development and manufacture cycle of the panel and also reduce the cost. It has high engineering application value.

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“…Nowadays, increasing interest is given to ball burnishing [8], shot peening [9], cavitation peening [10], and other mechanical post-treatment technologies that allow not only smoothening of the rough surface finish of as-built parts, but also an increase of their hardness, strength, wear resistance, and fatigue life as well as a reduction their friction due to impact at the surface. Different types of lasers (such as CO 2 gas laser, Nd:YAG lasers, copper vapor lasers, and excimer lasers) widely used for engraving, drilling, cutting, and heat treatment of the enormous variety of structural materials can also be successfully adopted for surface finish improvement of additive manufactured metal parts [11].…”

Section: Introductionmentioning

confidence: 99%

Continuous Electron Beam Post-Treatment of EBF3-Fabricated Ti–6Al–4V Parts

Panin

Kazachenok

Перевалова

et al. 2019

Metals

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In the present study, the methods of optical, scanning electron, and transmission electron microscopy as well as X-ray diffraction analysis gained insights into the mechanisms of surface finish and microstructure formation of Ti–6Al–4V parts during an EBF3-process. It was found that the slip band propagation within the outermost surface layer provided dissipation of the stored strain energy associated with martensitic transformations. The latter caused the lath fragmentation as well as precipitation of nanosized β grains and an orthorhombic martensite α″ phase at the secondary α lath boundaries of as-built Ti–6Al–4V parts. The effect of continuous electron beam post-treatment on the surface finish, microstructure, and mechanical properties of EBF3-fabricated Ti–6Al–4V parts was revealed. The brittle outermost surface layer of the EBF3-fabricated samples was melted upon the treatment, resulting in the formation of equiaxial prior β grains of 20 to 30 μm in size with the fragmented acicular α′ phase. Electron-beam irradiation induced transformations within the 70 μm thick molten surface layer and 500 μm thick heat affected zone significantly increased the Vickers microhardness and tensile strength of the EBF3-fabricated Ti–6Al–4V samples.

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The ultrasonic burnishing of cobalt-chrome and stainless steel surface made by additive manufacturing

Cited by 41 publications

References 21 publications

Development, characterization and test of an ultrasonic vibration-assisted ball burnishing tool

Development, characterization and test of an ultrasonic vibration-assisted ball burnishing tool

Performance Optimization and Verification of a New Type of Solar Panel for Microsatellites

Continuous Electron Beam Post-Treatment of EBF3-Fabricated Ti–6Al–4V Parts

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