Advanced Powder Metallurgy Technologies

Novák, Pavel

doi:10.3390/ma13071742

Cited by 19 publications

(11 citation statements)

References 14 publications

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“…To fabricate the cutting inserts, a powder metallurgy method was chosen [ 26 ]. The sintering process was performed using the modified hot-pressing device with activation by directly applied current [ 27 ] at temperature T sint = 1600 °C under the axial pressure P = 35 MPa during the sintering time τ sint = 3 min.…”

Section: Methodsmentioning

confidence: 99%

Effect of SiC Addition to Al2O3 Ceramics Used in Cutting Tools

et al. 2020

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In this study, the effect of the addition of silicon carbide to alumina ceramics commonly used in cutting tool applications is addressed. Performance of Al2O3–SiC composite cutting inserts during the machining of hardened steels and ductile iron was compared to the results obtained for a cutting tool made out of 99 wt.% Al2O3, Al2O3–TiC, Al2O3–TiC–ZrO2, and Al2O3–TiN. In almost all tests, the composite with silicon carbide demonstrated better wear resistance, longer tool lifetime, and the ability to cut at higher speeds. The enhanced properties of cutting tools with SiC can be attributed to the morphology and dimensions of the inclusions in the matrix as well as to the strength of the interphase boundaries, small porosity, and lack of high inner stresses in the volume.

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Section: Methodsmentioning

confidence: 99%

Effect of SiC Addition to Al2O3 Ceramics Used in Cutting Tools

et al. 2020

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“…The characterization of powders is commonly performed using different analytical techniques including X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), scanning/transmission electron microscopy (SEM/TEM), electron backscattered diffraction (EBSD), and X-ray diffraction (XRD). These techniques are limited in terms of either spatial or lateral resolution or chemical information of phases and hence often need to be done together to obtain more meaningful information [ 38 ]. Both the characteristics of the metal powder and the type of the AM process determine the properties of the product.…”

Section: Powder Materials Used For Additive Manufacturingmentioning

confidence: 99%

Powder Bed Fusion Additive Manufacturing Using Critical Raw Materials: A Review

et al. 2021

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The term “critical raw materials” (CRMs) refers to various metals and nonmetals that are crucial to Europe’s economic progress. Modern technologies enabling effective use and recyclability of CRMs are in critical demand for the EU industries. The use of CRMs, especially in the fields of biomedicine, aerospace, electric vehicles, and energy applications, is almost irreplaceable. Additive manufacturing (also referred to as 3D printing) is one of the key enabling technologies in the field of manufacturing which underpins the Fourth Industrial Revolution. 3D printing not only suppresses waste but also provides an efficient buy-to-fly ratio and possesses the potential to entirely change supply and distribution chains, significantly reducing costs and revolutionizing all logistics. This review provides comprehensive new insights into CRM-containing materials processed by modern additive manufacturing techniques and outlines the potential for increasing the efficiency of CRMs utilization and reducing the dependence on CRMs through wider industrial incorporation of AM and specifics of powder bed AM methods making them prime candidates for such developments.

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“…In today's industrial world, although traditional manufacturing methods like machining, casting, welding, powder metallurgy, and plastic forming are more widespread for metallic [1,2], polymeric [3,4], composite [5][6][7], and ceramic [8] parts, this custom has begun to change in recent years. Threedimensional (3D) printing technology is one of the modern production technologies that facilitates the manufacturing of complex-shaped objects [9,10].…”

Section: Introductionmentioning

confidence: 99%

An Investigation on Dimensional Accuracy of 3D Printed PLA, PET-G and ABS Samples with Different Layer Heights

Bolat

ERGENE

2022

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi

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In this study, the effect of filament type and layer height on the dimensional accuracy of the 3D printed tensile test samples from PLA, PET-G, and ABS was investigated in depth. Based on the fused filament fabrication (FFF) technology, tensile test samples were produced with various layer heights (0.2 mm, 0.3 mm, and 0.4 mm) while the other printing parameters were kept constant, except for nozzle and building platform temperature. Length, width, and height values of the produced test samples were measured, and obtained results were compared with design dimensions to observe the dimensional accuracy of each sample. Also, surface roughness measurements were performed on the samples to examine their final surface quality. From dimensional measurements, it was seen that the most accurate results were recorded for PET-G (in length and height) and PLA (in width) samples. Furthermore, the best surface quality was attained in PLA samples compared to other filaments.

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Advanced Powder Metallurgy Technologies

Cited by 19 publications

References 14 publications

Effect of SiC Addition to Al2O3 Ceramics Used in Cutting Tools

Effect of SiC Addition to Al2O3 Ceramics Used in Cutting Tools

Powder Bed Fusion Additive Manufacturing Using Critical Raw Materials: A Review

An Investigation on Dimensional Accuracy of 3D Printed PLA, PET-G and ABS Samples with Different Layer Heights

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