scholarly journals Cutting tools: finite element modeling of spark plasma sintering to improve their quality

2015 ◽  
Vol 16 (7) ◽  
pp. 713 ◽  
Author(s):  
Denis I. Yushin ◽  
Andrey V. Smirnov ◽  
Pavel Yu. Peretyagin ◽  
Ramon Torrecillas
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Spark Plasma Sintering ◽  
Cutting Tools ◽  
Element Modeling ◽  
Plasma Sintering ◽  
Spark Plasma

Finite element modeling of spark plasma sintering: Application to the reduction of temperature inhomogeneities, case of alumina

2017 ◽  
Vol 116 ◽  
pp. 504-514 ◽  
Author(s):  
Youssef Achenani ◽  
Malika Saâdaoui ◽  
Abdelkhalek Cheddadi ◽  
Guillaume Bonnefont ◽  
Gilbert Fantozzi
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Spark Plasma Sintering ◽  
Element Modeling ◽  
Plasma Sintering ◽  
Spark Plasma

Coupled Electro-Thermo-Mechanical Finite Element Modeling of the Spark Plasma Sintering Technique

2015 ◽  
Vol 47 (2) ◽  
pp. 1263-1273 ◽  
Author(s):  
Maxime Schwertz ◽  
Aurélien Katz ◽  
Emmanuel Sorrel ◽  
Sébastien Lemonnier ◽  
Elodie Barraud ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Spark Plasma Sintering ◽  
Element Modeling ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Thermal-Electrical-Mechanical Simulation of High Pressure Spark Plasma Sintering (HP-SPS) Process

2019 ◽  
Vol 286 ◽  
pp. 04002 ◽  
Author(s):  
Youssef Achenani ◽  
Abdelkhalek Cheddadi ◽  
Malika SaÂdaoui ◽  
Gilbert Fantozzi
Keyword(s):  
Finite Element ◽  
High Pressure ◽  
Finite Element Modeling ◽  
Ceramic Material ◽  
Spark Plasma Sintering ◽  
Element Modeling ◽  
Plasma Sintering ◽  
Die Surface ◽  
Spark Plasma ◽  
Thermal Sintering

In the present work, we investigate the stresses distribution using a high pressure die during SPS (Spark Plasma Sintering) experiments. In this context, we used a finite element modeling (FEM) in the case of the sintering of an alumina sample, chosen as an electrically insulator ceramic material. A thermal sintering cycle is imposed using a control pyrometer of temperature at the SiC inner die surface.

Modeling and Experimental Research Regarding the Temperature Distribution along Curved Cutting Edges

2014 ◽  
Vol 1036 ◽  
pp. 259-264
Author(s):  
Nicușor Baroiu ◽  
Doina Boazu ◽  
Silviu Berbinschi ◽  
Virgil Teodor
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Cutting Tools ◽  
Chip Thickness ◽  
Cutting Edge ◽  
Actual Process ◽  
Element Modeling ◽  
Temperature State ◽  
Machining Speed ◽  
Twist Drills

The curved cutting edge determines a variable chip thickness that leads to various may energetically load along the cutting edge. For twist drill with curved cutting edges, the machining speed variation along the major cutting edge is significant. The points belong to the drills periphery work with an increased machining speed. The thick of the detached chip by these cutting zones downwards to the periphery, versus the thick corresponding to the zones at the drills axis, may leads, in some conditions, to the evenness of the energetically load along the cutting edge, with direct influence regarding the cutting tools wearing mechanism. In this paper are presented modeling with finite elements developed in the Ansys Workbench environment, regarding the energetically load and the temperature state along the cutting edge with variable working angle, characteristic for twist drills with curved cutting edges. The modeling was made comparative with the drill with straight lined cutting edges, for the same working conditions. In the same time, presents an experimental record of an actual process. It was recorded the temperature along the cutting edge with a variable working angle in a turning process with transversal feed. There are presented results of the finite element modeling and of the experiment that simulated the cutting process at drilling. The experimental results of the finite element modeling confirm the trend for temperature evenness along the cutting edge with variable working angle regarding the drills with straight-line cutting edge.

scholarly journals The Analysis of Erosive Wear Resistance of WC-Co Carbides Obtained by Spark Plasma Sintering Method

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7326
Author(s):  
Joanna Wachowicz ◽  
Tomasz Dembiczak ◽  
Grzegorz Stradomski ◽  
Zbigniew Bałaga ◽  
Joanna Jasińska ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Quartz Sand ◽  
Metal Cutting ◽  
Oriented Strand Board ◽  
Cutting Tools ◽  
Erosive Wear ◽  
Plasma Sintering ◽  
Erosion Models ◽  
Spark Plasma ◽  
Sand Particles

WC-Co (tungsten carbide-cobalt) composites are widely used in industry, wear-resistant parts, and cutting tools. As successful tool materials, WC-Co carbides are widely applied in metal cutting, wear applications, chipless forming, stoneworking, wood, and plastic working. These materials are exposed to severe solid particle erosion by sand particles, such as in the wood industry. During the production of furniture with HDF (High Density Fibreboard), MDF (Medium Density Fibreboard), or OSB (Oriented Strand Board), there are observed problems with tool erosion. Contamination, mainly of the HDF by sand, is quite often, which is why all tools used for the machining of such materials are exposed to erosion by sand particles. Although many studies have been performed on the erosion of various metals, and erosion models exist to predict their erosion behavior, the issue is still relevant. The aim of the study was to determine the effect of grain size (submicron, ultrafine) and the manufacturing technology (SPS—Spark Plasma Sintering, conventional) used on the erosive properties of WC-Co sintered carbides. Sinters produced by the SPS method with different sizes of WC grains and commercial samples were used for the tests. Ten two-hour cycles were carried out under medium conditions of quartz sand and quartz sand with 10% SiC added. Used samples were characterised using scanning electron microscopy (SEM) and roughness was determined. Furthermore, erosion studies allowed individuating a wear mechanism as well as the possibility to foresee cutting performance in prospective application.

Longer-lasting Al2 O3 -SiCw -TiC cutting tools obtained by spark plasma sintering

2017 ◽  
Vol 14 (3) ◽  
pp. 367-373 ◽  
Author(s):  
Carlos F Gutiérrez-González ◽  
Serghei Pozhidaev ◽  
Sergio Rivera ◽  
Pavel Peretyagin ◽  
Washington Solís ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Cutting Tools ◽  
Plasma Sintering ◽  
Spark Plasma

Finite Element Modeling of Stresses Induced by High Speed Machining With Round Edge Cutting Tools

2005 ◽  
Author(s):  
Tugrul O¨zel ◽  
Erol Zeren
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Surface Properties ◽  
High Speed ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Material Behavior ◽  
High Speed Machining ◽  
Element Modeling ◽  
Work Material

High speed machining (HSM) produces parts with substantially higher fatigue strength; increased subsurface micro-hardness and plastic deformation, mostly due to the ploughing of the cutting tool associated with residual stresses, and can have far more superior surface properties than surfaces generated by grinding and polishing. In this paper, a dynamics explicit Arbitrary Lagrangian Eulerian (ALE) based Finite Element Method (FEM) modeling is employed. FEM techniques such as adaptive meshing, explicit dynamics and fully coupled thermal-stress analysis are combined to realistically simulate high speed machining with an orthogonal cutting model. The Johnson-Cook model is used to describe the work material behavior. A detailed friction modeling at the tool-chip and tool-work interfaces is also carried. Work material flow around the round edge-cutting tool is successfully simulated without implementing a chip separation criterion and without the use of a remeshing scheme. Finite Element modeling of stresses and resultant surface properties induced by round edge cutting tools is performed as case studies for high speed machining of AISI 1045 and AISI 4340 steels, and Ti6Al4V titanium alloy.

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