Results 61 to 70 of about 251,961 (205)

On the Choice of Tool Material in Friction Stir Welding of Titanium Alloys [PDF]

open access: yes, 2012
Friction Stir Welding (FSW) is a solid state welding process patented in 1991 by TWI; initially adopted to weld aluminum alloys, is now being successfully used also for magnesium alloys, copper and steels.
Buffa, G.   +3 more
core  

The Influence of Plasma Nitriding Process Conditions on the Microstructure of Coatings Obtained on the Substrate of Selected Tool Steels

open access: yesAdvances in Mechanical and Materials Engineering
This study presents the results of research into the influence of the time of the plasma nitriding process on the microstructure of the coatings obtained. Cold-work tool steels (60WCrV8, 90MnCrV8, 145Cr6), hot-work tool steel (X37CrMoV5-1) and high-speed
Magdalena Mokrzycka   +11 more
doaj   +1 more source

Dimensional effects on magnetic properties of Fe-Si steels due to laser and mechanical cutting [PDF]

open access: yes, 2010
Microstructural deterioration near the cut line and presence of residual stresses both affect the magnetic properties of cut parts. In this paper, the differences between microstructural deterioration resulting from mechanical and laser cutting as well ...
Gomes de Araujo, Edgar   +4 more
core   +2 more sources

Impact of Heat Treatment Conditions and Cold Plastic Deformation on Secondary Hardening and Performance of Cold Work Tool Steel X160CrMoV12

open access: yesMetals
In this study, the effect of the cold plastic deformation of a Bridgman anvil at room temperature on the hardness and wear resistance of X160CrMoV12 steel was investigated by utilizing the hardness test, X-ray diffraction (XRD), abrasive emery wear (AEMW)
Regita Bendikiene, Lina Kavaliauskiene
doaj   +1 more source

Investigations on dry sliding of laser cladded aluminum bronze

open access: yesManufacturing Review, 2016
The aim of this study was to investigate the tribological behaviour of laser cladded aluminum bronze tool surfaces for dry metal forming. In a first part of this work a process window for cladding aluminum bronze on steel substrate was investigated to ...
Freiße Hannes   +4 more
doaj   +1 more source

Notes and laboratory reports on “Technology of Structural materials and Material Science” Part 2 [PDF]

open access: yes, 2017
“Technology of Structural materials and Material Science” is one of the basic technical disciplines in the syllabus for “Engineering mechanics” field of study.
Bodrova, L.G., Kramar, H.M.
core  

SPH method applied to high speed cutting modelling [PDF]

open access: yes, 2007
The purpose of this study is to introduce a new approach of high speed cutting numerical modelling. A Lagrangian smoothed particle hydrodynamics (SPH)- based model is arried out using the Ls-Dyna software.
Chieragatti, Rémy   +4 more
core   +3 more sources

Importance of selection of the tool steel grades and PVD coatings in cold work tools [PDF]

open access: yesMateriali in tehnologije, 2008
Tool steel selection and selection of PVD coatings is of key importance for the tool longevity. Therefore it is very important to recognize all present wear mechanisms in tool operation and select the most influential one, which enables proper selection of the tool steel types for the active tool positions.
Goršćak, Đurđica, Filetin, Tomislav
openaire   +2 more sources

Thermo-mechanical analysis of additively manufactured hybrid extrusion dies with conformal cooling channels [PDF]

open access: yes, 2019
Profile overheating and surface defects during hot aluminum extrusion can occur when seeking higher productivity rates at increased ram speed velocities. The incorporation of cooling channels in the die-design allows overcoming this process limitation by ...
Bertoli, C., Hora, P., Stoll, P.
core  

Thermo-micro-mechanical simulation of bulk metal forming processes

open access: yes, 2019
The newly proposed microstructural constitutive model for polycrystal viscoplasticity in cold and warm regimes (Motaman and Prahl, 2019), is implemented as a microstructural solver via user-defined material subroutine in a finite element (FE) software ...
Haase, Christian   +3 more
core   +1 more source

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