Producing mobile robot gripper part prototypes from polymeric materials using additive manufacturing technology. Part I. Mechanical properties and material constants of specimens from acrylonitrile-butadiene-styrene copolymer

Polimery ◽  
2017 ◽  
Vol 62 (01) ◽  
pp. 27-35 ◽  
Author(s):  
Maciej Cader ◽  
Rafal Oliwa ◽  
Olimpia Markowska ◽  
Grzegorz Budzik
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Mobile Robot ◽  
Polymeric Materials ◽  
Acrylonitrile Butadiene Styrene ◽  
Manufacturing Technology ◽  
Material Constants ◽  
Additive Manufacturing Technology ◽  
Robot Gripper ◽  
Butadiene Styrene

Development of a gripper for garment handling designed for additive manufacturing

2019 ◽  
pp. 095440621985776
Author(s):  
Michal Jilich ◽  
Mattia Frascio ◽  
Massimiliano Avalle ◽  
Matteo Zoppi
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Acrylonitrile Butadiene Styrene ◽  
Cost Effective ◽  
Lower Number ◽  
Polybutylene Terephthalate ◽  
Design Validation ◽  
Polymeric Additive ◽  
Lower Complexity ◽  
Butadiene Styrene

The paper presents how a robotic gripper specific for grasping and handling of textiles and soft flexible layers can be miniaturized and improved by polymeric additive manufacturing-oriented re-design. Advantages of polymeric additive manufacturing are to allow a re-design of components with integrated functions, to be cost-effective equipment for small batches production and the availability of suitable materials for many applications. The drawback is that for design validation extended testing is still necessary because of lacks in standardization and that the mechanical properties are building parameters dependent. The outcomes are a lower complexity of the design overall and lower number of components. These are pursued taking advantage of the anisotropy of the additive manufacturing processed polymer and assigning appropriate shapes and linkages in the mechanisms. Set of common materials (polylactide, polyethylene terephthalate, acrylonitrile butadiene styrene) and technical (acrylonitrile styrene acrylate, polycarbonate/polybutylene terephthalate blend) are tested to obtain data for the modelling.

scholarly journals Print Velocity Effects on Strain-Rate Sensitivity of Acrylonitrile-Butadiene-Styrene Using Material Extrusion Additive Manufacturing

Polymers ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 149
Author(s):  
Wilco M. H. Verbeeten ◽  
Rob J. Arnold-Bik ◽  
Miriam Lorenzo-Bañuelos
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Strain Rate ◽  
Yield Stress ◽  
Strain Rate Sensitivity ◽  
Molecular Orientation ◽  
Activation Volume ◽  
Rate Sensitivity ◽  
Acrylonitrile Butadiene Styrene ◽  
Butadiene Styrene

The strain-rate sensitivity of the yield stress for Acrylonitrile-Butadiene-Styrene (ABS) tensile samples processed via material extrusion additive manufacturing (ME-AM) was investigated. Such specimens show molecular orientation and interstitial voids that affect the mechanical properties. Apparent densities were measured to compensate for the interstitial voids. Three different printing speeds were used to generate ME-AM tensile test samples with different molecular orientation. Printing velocities influenced molecular orientation and stretch, as determined from thermal shrinkage measurements. Likewise, infill velocity affected the strain-rate dependence of the yield stress. The ABS material manifests thermorheollogically simple behavior that can correctly be described by an Eyring flow rule. The changing activation volume, as a result of a varying print velocity, scales linearly with the molecular orientation, as captured in an estimated processing-induced pre-strain. Therefore, it is suggested that ME-AM processed ABS shows a deformation-dependent activation volume. This paper can be seen as initial work that can help to improve quantitative predictive numerical tools for ME-AM, taking into account the effects that the processing step has on the mechanical properties.

scholarly journals Additive manufacturing technology of polymeric materials for customized products: recent developments and future prospective

RSC Advances ◽  
2021 ◽  
Vol 11 (58) ◽  
pp. 36398-36438
Author(s):  
Akhilesh Kumar Pal ◽  
Amar K. Mohanty ◽  
Manjusri Misra
Keyword(s):  
Additive Manufacturing ◽  
Process Parameters ◽  
Polymeric Materials ◽  
Manufacturing Technology ◽  
Engineering Applications ◽  
Additive Manufacturing Technology ◽  
Recent Developments ◽  
Customized Products

The worldwide demand for additive manufacturing (AM) is increasing due to its ability to produce more challenging customized objects based on the process parameters for engineering applications.

scholarly journals Possibilities and limitations of titanium alloy additive manufacturing

2018 ◽  
Vol 224 ◽  
pp. 01064 ◽  
Author(s):  
Anton Agapovichev ◽  
Anton Sotov ◽  
Victoria Kokareva ◽  
Vitaly Smelov
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Additive Manufacturing ◽  
Literature Review ◽  
State Of The Art ◽  
Manufacturing Technology ◽  
The State ◽  
Aerospace Application ◽  
Additive Manufacturing Technology ◽  
Ti Alloys

This paper reviews the state-of-the-art of an important, rapidly emerging, additive manufacturing technology. Paper deals with the literature review of the Medical and Aerospace application of Additive Manufacturing from Ti alloys and its benefits and limitations. The study also demonstrate and compare the mechanical properties of Ti6Al4V samples produced by different technologies.

scholarly journals Metal Powder and Wire Additive Manufacturing Technology

2020 ◽  
Vol 213 ◽  
pp. 01020
Author(s):  
Yan Liu ◽  
Anna Du ◽  
Guishen Zhou ◽  
Jiapeng Liu
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Metal Powder ◽  
Manufacturing Technology ◽  
Broad Application ◽  
Additive Manufacturing Technology

Additive manufacturing technology can quickly manufacture parts with dense microstructures and excellent mechanical properties, so that it shows a broad application prospect in aerospace and other fields. Additive manufacturing technology was briefly introduced in this paper. On this basis, the technology and characteristics of metal powder and wire additive manufacturing were systematically analyzed and compared, and the development of additive manufacturing technology was prospected.

Microstructures and Properties of 304L Steel CAP1400 Fuel Bottom Nozzles Prepared by Additive Manufacturing Technology

2017 ◽  
Author(s):  
Li Zongshu ◽  
Liu Wentao ◽  
Yang Songtao ◽  
Hao Ruotong
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Fuel Assembly ◽  
Laser Power ◽  
Nuclear Power ◽  
Manufacturing Technology ◽  
Power Station ◽  
Laser Additive Manufacturing ◽  
Additive Manufacturing Technology ◽  
The Matrix

Nozzles of fuel assembly play an important role in pressure water reactor (PWR) fuel assembly element. For a long time, ordinary processing technologies of nozzles of fuel assembly have the problems of difficult and complicated process, the low availability of material and long the development cycles of manufacturing. However, according to the study these issues can be well settled by using the additive manufacturing technology. This paper studies a nozzle of fuel assembly prepared by this additive manufacturing technology through slow-strain-rate tension (SSRT) test and microstructure observation experiment. The results of SSRT test show that yield strength of the nozzle of fuel assembly is about 401.5MPa, the extensional rigidity is about 673.5MPa and the ductility is about 45.7%. And the SEM fracture results of the SSRT sample indicate that the fracture microstructure contains a large number of dimples, and the way of fracture belongs to plastic. And the metallographic observation consequences manifest that the microstructure of nozzle of fuel assembly prepared by the additive manufacturing technology is composite tissue of both austenite and ferrite, and the grains are settled along the way of laser scanning and there are isometric with some kind of direction. This metallographic microstructure is different from the traditional morphology of the free carbide distributed in the matrix. The dual phase microstructure of austenite and ferrite can improve the mechanical properties of the matrix effectively, and avoid the free carbides which may lead to matrix fragmentation in the tensile deformation process. Moreover, the laser power could affect the microstructure and properties of nozzles of fuel assembly observably, and the high laser power could bring about the ablation of metal. Through the analysis of mechanical properties and microstructure, we have made it possible to make the laser additive manufacturing technology to be used for the fuel assembly nozzle preparation in the nuclear power area. This work not only presents the advantages of the laser additive manufacturing technology in the fuel element processing area of the nuclear power station, but also broadens the application range of the laser additive manufacturing technology. What’s more we provide the new thoughts for the fast and effective preparation of the fuel element especially for the fuel assembly nozzle in the nuclear power station.

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