Results 31 to 40 of about 22,481 (283)

Investigation of Size Effects in Multi-Stage Cold Forming of Metallic Micro Parts from Sheet Metal

Micromachines, 2021
Product miniaturisation and functional integration are currently global trends to save weight, space, materials and costs. This leads to an increasing demand for metallic micro components.
Martin Kraus, Marion Merklein
doaj   +1 more source

Springback of thick sheet AHSS subject to bending under tension [PDF]

, 2012
Lien vers la version éditeur : http://www.sciencedirect.com/science/article/pii/S0020740312000677The springback behavior of four advanced high-strength sheet steels (Dual-Phase, TRIP, ferrite-bainite) with thicknesses ranging from 1.2 to 4 mm was ...
BALAN, Tudor, RACZ, Sever-Gabriel, CHALAL, Hocine   +2 more
core   +1 more source

Interaction of various functional elements in thin-walled cups formed by a sheet-bulk metal forming process

MATEC Web of Conferences, 2016
Sheet-bulk metal forming allows the manufacturing of sheet metal parts with integrated functional elements. The investigated process combines deep drawing and upsetting.
Schulte Robert, Schneider Thomas, Lechner Michael, Merklein Marion   +3 more
doaj   +1 more source

Additive Manufacturing of Tailored Blank for Sheet-Bulk Metal Forming Processes [PDF]

IOP Conference Series: Materials Science and Engineering, 2020
Abstract Functional integration and lightweight construction pose increasing demands on manufacturing processes and require innovative approaches. In this context, sheet-bulk metal forming combines the advantages of conventional sheet and bulk forming processes expanding the limitations of these particular processes.
R Schulte, T Papke, M Lechner, M Merklein   +3 more
openaire   +1 more source

Application of the continuum shell finite element SHB8PS to sheet forming simulation using an extended large strain anisotropic elastic–plastic formulation [PDF]

, 2012
http://link.springer.com/article/10.1007%2Fs00419-012-0620-xThis paper proposes an extension of the SHB8PS solid–shell finite element to large strain anisotropic elasto-plasticity, with application to several non-linear benchmark tests including sheet ...
BALAN, Tudor, SALAHOUELHADJ, Abdellah, ABED-MERAIM, Farid, CHALAL, Hocine   +3 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Progressive microforming of pin-shaped plunger parts and the grain size effect on its forming quality

Materials & Design, 2020
Progressive microforming of bulk microparts by directly using sheet metals has been developed to address the issues of preform/billet positioning, transportation and ejection in microforming, and it has potential to be used for making complex pin-shaped ...
Jun-Yuan Zheng, S.Q. Shi, M.W. Fu
doaj   +1 more source

Strain path dependency in incremental sheet-bulk metal forming

International Journal of Material Forming, 2020
Abstract Incremental sheet-bulk metal forming (iSBMF) enables the manufacture of functional lightweight components featuring a load-adapted shape with a high material efficiency. The flexibility of the incremental forming process allows for the modification of the strain path through the adjustment of the tool motion while maintaining
S. Wernicke, M. Hahn, G. Gerstein, F. Nürnberger, A. E. Tekkaya   +4 more
openaire   +1 more source

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

FEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source