Mechanical characteristics of die-wall friction on the compaction process of metal nano-powders

AR Khoei, AR Sameti, Z Kazempour… - Powder Technology, 2024 - Elsevier
The die-wall friction is one of the influential mechanical factors in the metal nano-powder
compaction process that can noticeably impress the densification behavior of nanoparticles …

Die wall friction and influence of some process parameters on friction in iron powder compaction

N Solimanjad, R Larsson - Materials science and technology, 2003 - journals.sagepub.com
The coefficient of friction is a system response parameter, which is affected by a number of
parameters such as normal load and sliding distance. Experimental results describing the …

Optimizing press tool shapes by numerical simulation of compaction and sintering—application to a hard metal cutting insert

T Kraft - Modelling and Simulation in Materials Science and …, 2003 - iopscience.iop.org
Designing, manufacturing and commissioning of the tooling often determines the delivery
time of a new powder-metallurgical component. To speed-up this process, computer …

Friction measurement and lubrication in unloading and ejection stages in powder pressing cycle

D Korachkin, DT Gethin, RW Lewis… - Powder …, 2008 - journals.sagepub.com
The development of a floating die shear plate apparatus and its use to explore lubrication
mechanisms (both admixed and die wall) and to assess the effectiveness of lubrication …

On the lubricating efficiency of high-performance powder metallurgy lubricants

T Vié, B Harthong, D Imbault, P François, JV Reid… - Powder technology, 2023 - Elsevier
Frictional characteristics of an iron-based mixture were studied using a specifically designed
friction test bench allowing (after prior compaction) the measurement of the friction …

A discrete finite element modelling and measurements for powder compaction

JL Choi, DT Gethin - … and Simulation in Materials Science and …, 2009 - iopscience.iop.org
A discrete finite element modelling and measurements for powder compaction Page 1
Modelling and Simulation in Materials Science and Engineering A discrete finite element …

[PDF][PDF] 粉末成形过程中摩擦行为研究进展

王德广, 吴玉程, 焦明华, 黄新民, 解挺, 俞建卫 - 机械工程学报, 2009 - qikan.cmes.org
粉末成形过程中的摩擦行为是一个十分复杂的问题, 受粉末和模具材料性能, 粉末形状大小,
模具表面状况, 粉末与模具间相对运动速度, 润滑剂特性, 粉末和模具温度等许多因素的影响 …

Investigations on friction behaviour of treated and coated tools with poorly lubricated powder mixes

V Bonnefoy, P Doremus, G Puente - Powder metallurgy, 2003 - journals.sagepub.com
Friction at the interface between tools and powder plays a significant role in the cold die
compaction process in both compression and ejection steps. In this work, the influence of …

Modélisation de la compression haute densité des poudres métalliques ductiles par la méthode des éléments discrets

JF Jerier - 2009 - theses.hal.science
Ce mémoire de thèse synthétise trois années de recherches dédiées à l'étude numérique et
théorique de la compression à haute densité de poudres métalliques. Des diérentes phases …

Etude expérimentale et simulation numérique de la mise en forme par compression et frittage de poudres

F Toussaint - 2001 - theses.hal.science
L'objectif de ce travail est d'obtenir un outil numérique permettant de simuler et d'optimiser le
procédé de mise en forme par compression et frittage de poudres métalliques. La démarche …