Correlation mechanism between force chains and friction mechanism during powder compaction

N Zhang, S Zhang, JJ Tan, W Zhang - Chinese Physics B, 2022 - iopscience.iop.org
The relation between friction mechanism and force chains characteristics has not yet been
fully studied in the powder metallurgy research area. In this work, a uniaxial compression …

Correlation mechanism of friction behavior and topological properties of the contact network during powder compaction

W Zhang, C Yuan, S Zhang, W Xiao, N Zhang, R Chen - Particuology, 2023 - Elsevier
The effect of friction behavior on the compacted density is significant, but the relationship
between the topological properties of the contact network and friction behavior during …

Relation between force chain quantitative characteristics and side wall friction behaviour during ferrous powder compaction

W Zhang, S Zhang, J Tan, N Zhang, B Chen - Granular Matter, 2022 - Springer
The internal mechanical behavior of powder system and the side wall friction behavior
during powder compaction keep unclear yet. They are significant for revealing the …

Stress shielding effect in pressure-assisted binder jetting

L Kirby, F Fei, X Song - Powder Technology, 2023 - Elsevier
A key challenge in binder jet additive manufacturing is the low density of fabricated parts. An
emerging approach to mitigate the low density is comprised of in-situ uniaxial compression …

3D DEM investigation on percolation of lubricant particles during uniaxial metal powder compaction

W Zhang, W Xiao, C Yuan, X Gong, B Hai, R Chen… - Granular Matter, 2024 - Springer
Based on the discrete element method, a 3D particle size model including MoS 2 lubricant
and iron powder particles has been used to simulate the powder compaction process. The …

Mechanical Properties of Microporous Copper Powder Compacts Produced by Oxide Reduction

J Tse Lop Kun, E Patterson, R Learn, M Atwater - Metals, 2023 - mdpi.com
Powder metallurgy (PM) processes for porous copper and alloys have seen some
commercial successes, but PM methods have the disadvantage of relatively low porosity or …

An Analysis of the Stress State in Powder Compacts during Unloading, Emphasizing the Influence from Different Frictional Models

H Staf, PL Larsson - Applied Sciences, 2023 - mdpi.com
Finite element (FE) simulations are frequently used nowadays in order to analyse powder
compaction and sintering, for example, when determining the shape of a cutting blank insert …

Mechanical characterization of powder materials: A general approach detailed for cemented carbides

H Staf, E Olsson, PL Larsson - Powder Technology, 2020 - Elsevier
Material parameter curves in an advanced material model describing compaction of spray
dried cemented carbide powder are determined successfully based on a general approach …

Calibration of powder constitutive model using digital image correlation validated for hollow hemisphere of lead zirconate titanate

MM Morais, CC de Melo, RB Canto, CA Fortulan - Powder Technology, 2021 - Elsevier
This paper presents the application of digital image correlation to uniaxial and diametral
compression tests to identify the Drucker-Prager/cap shear failure and the elastic …

On the relation between pressing energy and green strength at compaction of hard metal powders

K Salmi, H Staf, PL Larsson - Journal of Materials Engineering and …, 2021 - Springer
The relation between pressing energy and green strength is examined experimentally and
numerically using a commercially available design of experiment (DOE) software, at …