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Formability Assessment of Additively Manufactured Materials via Dieless Nakajima Testing
Journal of Manufacturing and Materials ProcessingThis paper delves into the formability of material deposited by wire arc additive manufacturing. It presents a novel dieless Nakajima testing procedure that offers a practical solution for obtaining strain loading paths up to failure directly from the ...
Braganca I M F +2 more
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Journal of Manufacturing and Materials ProcessingBrass sheets are extensively utilized in the automotive, electrical, and other industries, where an in-depth understanding of their formability is crucial for achieving optimal performance in production applications. This study investigates the influence
Aseel Hamad +2 more
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Fully-coupled micro–macro finite element simulations of the Nakajima test using parallel computational homogenization [PDF]
Computational Mechanics, 2021 AbstractThe Nakajima test is a well-known material test from the steel and metal industry to determine the forming limit of sheet metal. It is demonstrated how FE2TI, our highly parallel scalable implementation of the computational homogenization method FE$$^2$$ 2
Martin Lanser +2 more
exaly +5 more sources
International Journal of Mechanical Sciences, 2021 Abstract Recently, a biaxial test method comprising a cruciform specimen design and spatio-temporal method to determine the limit strains has been proposed for the determination of forming limit curves (FLCs) and fracture forming limit curves (FFLCs) for sheet metals.
Trevor Dean +2 more
exaly +3 more sources
Materials Research ExpressTitanium alloys are increasingly employed in industrial applications due to their high specific strength, thermal stability, and excellent corrosion resistance. Among these, Ti-6Al-4V is the most widely used alloy, particularly in aerospace, gas turbine,
Ömer Faruk Gökcepınar +3 more
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Finite Element Analysis on Experimental Stretch Forming Process of AA2014 Alloy at 423 to 623K Temperatures [PDF]
E3S Web of Conferences, 2023 Sheet metal forming processes are extremely important in the production of many different items. However, the issue of plastic instability, which frequently results in damaged goods, still exists in this industry. To solve this problem during production,
Lade Jayahari +6 more
doaj +1 more source
Crystals, 2023 Within the framework of the formability limit assessment in sheet metal forming, testing of notched tensile samples coupled with digital image correlation (DIC) has been analysed as an alternative to overcome the implications of Nakajima testing in ...
Ahmed Elsayed +2 more
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Experimental And Finite Element Studies of Stretch Forming Process for AA2014 Alloy At Elevated Temperature [PDF]
E3S Web of Conferences, 2023 Sheet metal forming operations play a crucial role in the manufacturing process of various products. However, the challenge of plastic instability, which often leads to defective products, continues to persist in this field.
Satyanarayana Kosaraju +7 more
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The Effect of Hydrogen on Failure of Complex Phase Steel under Different Multiaxial Stress States
Metals, 2022 The demand for advanced high-strength steel (AHSS) in the automotive industry has increased over the last few years. Nevertheless, it is known that AHSSs are susceptible to hydrogen embrittlement.
Fabien Ebling +3 more
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IOP Conference Series: Materials Science and Engineering, 2021 Abstract One sustainability approach in sheet metal forming is to reduce costs by increasing the reliability of the forming process by applying numerical simulations. These are based upon the finite element analysis and require specific characteristic values of the material.
D Kohl, M Merklein
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