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J M Torralba - One of the best experts on this subject based on the ideXlab platform.

  • new processing route for zrsio4 by Powder Injection Moulding using an eco friendly binder system
    Boletin De La Sociedad Espanola De Ceramica Y Vidrio, 2015
    Co-Authors: C Abajo, A Jimenezmorales, J M Torralba
    Abstract:

    New processing route has been developed for zircon based on Powder Injection Moulding (PIM). Raw zircon Powders, obtained from mineral sands, have been processed using a new water soluble binder system composed of PEG and CAB. Water solvent debinding stage has been studied in depth. On one hand, influence of some debinding parameters (temperature, debinding rate, additives and the use of climate chamber) has been tested. On the other hand, new binder systems were tested and compared with previous studied ones. The full PIM process has been carried out. Mixing, Injection molding, solvent and thermal debinding and finally sintering, have been performed with the optimal binder system composition. Homogeneity along the process has been assessed by thermo-gravimetric analysis and by density measurements. After sintering, dimensional variation, density and fracture surface obtained after flexural strength test, have been analyzed. A competitive flexural strength has been achieved for injected zircon samples.

  • optimisation of eco friendly binary binder system for Powder Injection Moulding
    Powder Metallurgy, 2014
    Co-Authors: C Abajo, Javier Ruiz Hidalgo, A Jimenezmorales, J M Torralba
    Abstract:

    In recent years, many efforts have been made to obtain more environmentally acceptable Powder Injection Moulding processes. In this sense, the purpose of this study is to optimise an eco-binder based on polyethylene glycol (PEG) as a water soluble component and cellulose acetate butyrate (CAB) as a natural backbone polymer derived from cellulose for Powder Injection Moulding of zirconium silicate Powders until a solvent debinding stage. Four different feedstocks have been investigated. As well as, a volume fraction of PEG and CAB 70/30 (vol.-%) and a solid loading of 57·5 (vol.-%) were maintained, molecular weights of polymers were combined in order to minimize distortion during binder solvent extraction. Water solvent debinding was carried out at three temperatures stepwise during 5 h. As a result, efficient removal of the PEG as well as free defects samples were obtained after solvent debinding for binder systems based on low molecular weight of PEG.

  • effect of a binder system on the low pressure Powder Injection Moulding of water soluble zircon feedstocks
    Journal of The European Ceramic Society, 2013
    Co-Authors: Javier Ruiz Hidalgo, A Jimenezmorales, J M Torralba, C Abajo
    Abstract:

    Abstract Micronized natural zircon sand Powders were used as a raw material to conduct low-pressure Powder Injection Moulding (LPPIM) processes. PIM could lead to new technological applications for this mineral, which has very stable dimensional behaviour with changing temperature. Zircon Powders that have unconventional attributes for PIM (in terms of size and morphology) were mixed with poly(ethylene glycol) (PEG) based binders. Combinations of this water-soluble substance with different polymers, including low-density polyethylene (LDPE) and several types of acetate butyrate celluloses (CAB), were investigated. The influence of acetyl, butyryl and hydroxyl groups on the behaviour of the created feedstocks at different process stages and on the final piece properties were studied. The higher affinity of CAB with PEG and zircon Powders compared with LDPE could result in improved densification and properties, but the butyryl, acetyl and hydroxyls groups affect the processability of these feedstocks.

  • thermal stability and degradation kinetics of feedstocks for Powder Injection Moulding a new way to determine optimal solid loading
    Polymer Degradation and Stability, 2013
    Co-Authors: Javier Ruiz Hidalgo, A Jimenezmorales, J M Torralba
    Abstract:

    Abstract Degradation kinetics and the thermal stability of zircon Powder Injection Moulding feedstocks (PIM) based on cellulose acetate butyrate (CAB) and polyethylene glycol (PEG) binders were investigated using simultaneous thermogravimetric analysis (STA). The initial decomposition temperature (IDT) and the integral procedure decomposition temperature (IPDT) were used to analyse the thermal stability of the binder system as a function of the solid loading content. The degradation kinetics was studied, and the degradation activation energy was assessed for varying zircon Powder contents using isoconversional methods. All the methodologies revealed changes in the thermal degradation behaviours of the feedstocks for solid loadings that were previously determined to correspond to optimal solid loadings using other experimental procedures. These results may promote the proposal of thermodynamic degradation studies of feedstocks as an alternative or complementary technique to determine optimal solid loading contents in Powder Injection Moulding (PIM). The studies in this paper also examined PIM process operation temperatures for zircon feedstocks.

  • Powder Injection Moulding processing of small parts of complex shape
    International Journal of Microstructure and Materials Properties, 2013
    Co-Authors: J M Torralba, Javier Ruiz Hidalgo, A Jimenezmorales
    Abstract:

    Powder Injection Moulding (PIM), Metal Injection Moulding (MIM) when is limited to metals, is a fabrication route of parts with the final shape desired. This process combines the high capability of polymer Injection Moulding to produce complex shapes with the advantages of a Powder route to process metallic, ceramic or composites materials. The process has some limitations that comes from different technological steps involved in the production of the part (feedstock production, Injection, debinding and sintering). All of these different steps can be industrially controlled, being the PIM process a real alternative to produce complex parts in a high rate production method that can compete with many other processing methods to produce materials. In this work, we will go through the different steps of this manufacturing process, making special emphasis on the solutions provided by the Powder technology group of the University Carlos III of Madrid (UC3M).

Javier Ruiz Hidalgo - One of the best experts on this subject based on the ideXlab platform.

  • optimisation of eco friendly binary binder system for Powder Injection Moulding
    Powder Metallurgy, 2014
    Co-Authors: C Abajo, Javier Ruiz Hidalgo, A Jimenezmorales, J M Torralba
    Abstract:

    In recent years, many efforts have been made to obtain more environmentally acceptable Powder Injection Moulding processes. In this sense, the purpose of this study is to optimise an eco-binder based on polyethylene glycol (PEG) as a water soluble component and cellulose acetate butyrate (CAB) as a natural backbone polymer derived from cellulose for Powder Injection Moulding of zirconium silicate Powders until a solvent debinding stage. Four different feedstocks have been investigated. As well as, a volume fraction of PEG and CAB 70/30 (vol.-%) and a solid loading of 57·5 (vol.-%) were maintained, molecular weights of polymers were combined in order to minimize distortion during binder solvent extraction. Water solvent debinding was carried out at three temperatures stepwise during 5 h. As a result, efficient removal of the PEG as well as free defects samples were obtained after solvent debinding for binder systems based on low molecular weight of PEG.

  • effect of a binder system on the low pressure Powder Injection Moulding of water soluble zircon feedstocks
    Journal of The European Ceramic Society, 2013
    Co-Authors: Javier Ruiz Hidalgo, A Jimenezmorales, J M Torralba, C Abajo
    Abstract:

    Abstract Micronized natural zircon sand Powders were used as a raw material to conduct low-pressure Powder Injection Moulding (LPPIM) processes. PIM could lead to new technological applications for this mineral, which has very stable dimensional behaviour with changing temperature. Zircon Powders that have unconventional attributes for PIM (in terms of size and morphology) were mixed with poly(ethylene glycol) (PEG) based binders. Combinations of this water-soluble substance with different polymers, including low-density polyethylene (LDPE) and several types of acetate butyrate celluloses (CAB), were investigated. The influence of acetyl, butyryl and hydroxyl groups on the behaviour of the created feedstocks at different process stages and on the final piece properties were studied. The higher affinity of CAB with PEG and zircon Powders compared with LDPE could result in improved densification and properties, but the butyryl, acetyl and hydroxyls groups affect the processability of these feedstocks.

  • thermal stability and degradation kinetics of feedstocks for Powder Injection Moulding a new way to determine optimal solid loading
    Polymer Degradation and Stability, 2013
    Co-Authors: Javier Ruiz Hidalgo, A Jimenezmorales, J M Torralba
    Abstract:

    Abstract Degradation kinetics and the thermal stability of zircon Powder Injection Moulding feedstocks (PIM) based on cellulose acetate butyrate (CAB) and polyethylene glycol (PEG) binders were investigated using simultaneous thermogravimetric analysis (STA). The initial decomposition temperature (IDT) and the integral procedure decomposition temperature (IPDT) were used to analyse the thermal stability of the binder system as a function of the solid loading content. The degradation kinetics was studied, and the degradation activation energy was assessed for varying zircon Powder contents using isoconversional methods. All the methodologies revealed changes in the thermal degradation behaviours of the feedstocks for solid loadings that were previously determined to correspond to optimal solid loadings using other experimental procedures. These results may promote the proposal of thermodynamic degradation studies of feedstocks as an alternative or complementary technique to determine optimal solid loading contents in Powder Injection Moulding (PIM). The studies in this paper also examined PIM process operation temperatures for zircon feedstocks.

  • Thermal stability and degradation kinetics of feedstocks for Powder Injection Moulding – A new way to determine optimal solid loading?
    Polymer Degradation and Stability, 2013
    Co-Authors: Javier Ruiz Hidalgo, Antonia Jiménez-morales, José M. Torralba
    Abstract:

    Abstract Degradation kinetics and the thermal stability of zircon Powder Injection Moulding feedstocks (PIM) based on cellulose acetate butyrate (CAB) and polyethylene glycol (PEG) binders were investigated using simultaneous thermogravimetric analysis (STA). The initial decomposition temperature (IDT) and the integral procedure decomposition temperature (IPDT) were used to analyse the thermal stability of the binder system as a function of the solid loading content. The degradation kinetics was studied, and the degradation activation energy was assessed for varying zircon Powder contents using isoconversional methods. All the methodologies revealed changes in the thermal degradation behaviours of the feedstocks for solid loadings that were previously determined to correspond to optimal solid loadings using other experimental procedures. These results may promote the proposal of thermodynamic degradation studies of feedstocks as an alternative or complementary technique to determine optimal solid loading contents in Powder Injection Moulding (PIM). The studies in this paper also examined PIM process operation temperatures for zircon feedstocks.

  • Powder Injection Moulding processing of small parts of complex shape
    International Journal of Microstructure and Materials Properties, 2013
    Co-Authors: J M Torralba, Javier Ruiz Hidalgo, A Jimenezmorales
    Abstract:

    Powder Injection Moulding (PIM), Metal Injection Moulding (MIM) when is limited to metals, is a fabrication route of parts with the final shape desired. This process combines the high capability of polymer Injection Moulding to produce complex shapes with the advantages of a Powder route to process metallic, ceramic or composites materials. The process has some limitations that comes from different technological steps involved in the production of the part (feedstock production, Injection, debinding and sintering). All of these different steps can be industrially controlled, being the PIM process a real alternative to produce complex parts in a high rate production method that can compete with many other processing methods to produce materials. In this work, we will go through the different steps of this manufacturing process, making special emphasis on the solutions provided by the Powder technology group of the University Carlos III of Madrid (UC3M).

José M. Torralba - One of the best experts on this subject based on the ideXlab platform.

  • New processing route for ZrSiO4 by Powder Injection Moulding using an eco-friendly binder system ☆
    Boletin De La Sociedad Espanola De Ceramica Y Vidrio, 2015
    Co-Authors: C Abajo, Antonia Jiménez-morales, José M. Torralba
    Abstract:

    New processing route has been developed for zircon based on Powder Injection Moulding (PIM). Raw zircon Powders, obtained from mineral sands, have been processed using a new water soluble binder system composed of PEG and CAB. Water solvent debinding stage has been studied in depth. On one hand, influence of some debinding parameters (temperature, debinding rate, additives and the use of climate chamber) has been tested. On the other hand, new binder systems were tested and compared with previous studied ones. The full PIM process has been carried out. Mixing, Injection molding, solvent and thermal debinding and finally sintering, have been performed with the optimal binder system composition. Homogeneity along the process has been assessed by thermo-gravimetric analysis and by density measurements. After sintering, dimensional variation, density and fracture surface obtained after flexural strength test, have been analyzed. A competitive flexural strength has been achieved for injected zircon samples.

  • Capillary rheology studies of INVAR 36 feedstocks for Powder Injection Moulding
    Powder Technology, 2015
    Co-Authors: Julia Hidalgo, Jean Claude Gelin, Thierry Barriere, Antonia Jiménez-morales, José M. Torralba
    Abstract:

    Capillary rheology was used to determine the shear viscosities of low expansion alloy INVAR 36 feedstocks for Powder Injection Moulding (PIM) based on gas atomized Powders and cellulose acetate butyrate (CAB) and poly-ethylene glycol (PEG) binders. Different variables that describe the flow behaviour were analysed, in particular, the relationships between viscosity of the melted feedstock with different conditions, such as shear rate (. γ˙), temperature (T), solid loading (Φ) and particle size (PS). The viscous behaviour was physically interpreted and discussed, and a generalised rheological model was proposed that involves all of the dependant parameters: γ˙, T, Φ and PS. The particular rheological behaviour of the feedstocks, which deviates from typical pseudoplastic behaviour, has a relevant correlation with the proposed model. Moreover, the model can be used when similar behaviours are observed in other systems.

  • Thermal stability and degradation kinetics of feedstocks for Powder Injection Moulding – A new way to determine optimal solid loading?
    Polymer Degradation and Stability, 2013
    Co-Authors: Javier Ruiz Hidalgo, Antonia Jiménez-morales, José M. Torralba
    Abstract:

    Abstract Degradation kinetics and the thermal stability of zircon Powder Injection Moulding feedstocks (PIM) based on cellulose acetate butyrate (CAB) and polyethylene glycol (PEG) binders were investigated using simultaneous thermogravimetric analysis (STA). The initial decomposition temperature (IDT) and the integral procedure decomposition temperature (IPDT) were used to analyse the thermal stability of the binder system as a function of the solid loading content. The degradation kinetics was studied, and the degradation activation energy was assessed for varying zircon Powder contents using isoconversional methods. All the methodologies revealed changes in the thermal degradation behaviours of the feedstocks for solid loadings that were previously determined to correspond to optimal solid loadings using other experimental procedures. These results may promote the proposal of thermodynamic degradation studies of feedstocks as an alternative or complementary technique to determine optimal solid loading contents in Powder Injection Moulding (PIM). The studies in this paper also examined PIM process operation temperatures for zircon feedstocks.

  • Torque rheology of zircon feedstocks for Powder Injection Moulding
    Journal of the European Ceramic Society, 2012
    Co-Authors: Julia Hidalgo, Antonia Jiménez-morales, José M. Torralba
    Abstract:

    In this work, a cellulose acetate butyrate (CAB) and polyethylene glycol (PEG) blend is used as the binder system in a zirconium silicate mineral Powder feedstock for Powder Injection Moulding. These irregular zircon Powders make the mixing process and the selection of an optimal solid loading level a difficult task. Torque rheology methodologies combined with other techniques are used for evaluation of the parameters affecting the mixing process and determination of the critical Powder volume concentration (CPVC). Temperature variations during the mixing process are monitored and used as an indicator of the friction energy of the system and thus for the optimal solid loading selection. There have thus far been limited amounts of work conducted on torque rheology of highly loaded feedstocks that incorporate a study of the system's temperature evolution. A detailed study could be a key factor for understanding the mixing behaviour of highly loaded feedstocks. © 2012 Elsevier Ltd.

Berenika Hausnerová - One of the best experts on this subject based on the ideXlab platform.

  • APPARENT WALL SLIP OF TUNGSTEN CARBIDE BASED FEEDSTOCK FOR Powder Injection Moulding
    2020
    Co-Authors: Michal Machovský, Berenika Hausnerová
    Abstract:

    Highly filled polymeric suspensions, such as those involved in Powder Injection Moulding (PIM), exhibit complex rheological behaviour. A detailed understanding of the rheology of these suspensions is prerequisite for their optimum and safe processing. In present paper, rheological behaviour of highly filled WC-Co compounds during capillary flow was studied with emphasis on apparent slip. Contribution of apparent slip to total volumetric flow decreased with increasing shear stress and increasing capillary diameter.

  • Rheological characterization of Powder Injection Moulding using feedstock based on aluminium oxide and multicomponent water-soluble polymer binder
    2020
    Co-Authors: Berenika Hausnerová, Lucie Marcaníková, Petr Filip, Petr Saha
    Abstract:

    Rheological analysis of Powder Injection Moulding of feedstock based on aluminium oxide Powder and multicomponent partly water-soluble polymeric binder is carried out with the aim to produce the defectfree and non-porous parts. As this process is characterized by the flow of highly filled (60 vol.%) compound into a mould cavity, rheological properties supplemented by thermal and pressure-volume-temperature characteristics are measured and described. Structural changes of the feedstock caused by shear deformation are quantified in terms of yield stresses obtained using the Herschel-Bulkley and Casson models. For a description of non-monotonous flow behaviour of the feedstock, the rheological model valid in the whole shear rate range measured is developed. Key-Words: Powder Injection Moulding, Viscosity, Aluminium oxide, Polymer binder

  • PRESSURE EFFECT COMPREHENSION INTO THE FLOW PREDICTIONS OF Powder Injection Moulding COMPOUNDS
    2020
    Co-Authors: Berenika Hausnerová
    Abstract:

    The flow properties of the highly filled polymer compounds intended for production of hard-metal parts by Powder Injection Moulding (PIM) technology were studied. The pure binder, consisted of polyethylene, ethylene-based copolymer and paraffin, and its compounds with hard-metal carbide Powder were prepared by melt mixing. The flow properties were investigated in the respect to temperature and pressure using modified capillary rheometer operating flow at constant piston speed. The measures of temperature and pressure sensitivity of PIM compounds, temperature and pressure sensitivity coefficients, were quantified through fitting of the rheological data with Carreau-Yasuda model.

  • ON THE MODELLING OF NON-MONOTONOUS VISCOSITY DESCRIBING FEEDSTOCK BEHAVIOUR IN Powder Injection Moulding
    2020
    Co-Authors: Petr Filip, Berenika Hausnerová, L. Cucova
    Abstract:

    Feedstocks used in the process of Powder Injection Moulding characterized by the flow of highly filled (60 vol.%) compound into a mould cavity, sometimes exhibit nonmonotonous flow behaviour of viscosity in dependence on shear rate. A new 7-parameter rheological model was proposed and applied to the feedstock based on aluminium oxide Powder and multicomponent partly water-soluble polymeric binder. Structural changes of the feedstock caused by shear deformation were quantified in terms of yield stresses obtained using the classical monotonous Herschel-Bulkley and Casson models. Unlike these models the newly proposed 7-parameter rheological model is valid in the whole shear rate range measured.

  • Wall slip of highly filled Powder Injection Moulding compounds in dependence on capillary die geometry
    Preface: Novel Trends in Rheology VIII, 2019
    Co-Authors: Petr Filip, Berenika Hausnerová, Daniel Sanetrnik, Eva Hnatkova
    Abstract:

    The feedstocks used in Powder Injection Moulding (PIM) are formed by solid particles incorporated into a binder with presence of surfactant enabling manufacturing of highly concentrated suspensions. Relatively even distribution of particles is violated in the close vicinity of the walls. A thin layer adjacent to the walls is pre-dominantly occupied by the binder only and at the interface wall-binder so-called wall slip occurs. Success and acceptance of an Injection Moulding step in PIM process primarily subjects to this wall slip phenomenon. The wall slip was qualitatively and quantitatively measured using a capillary rheometer equipped with the dies of different entrance angles. It was proved that this differentness has a significant impact on an appearance of wall slip (its intensity). Using four PIM feedstocks reliable slip velocity values of highly filled compounds were obtained for conical dies contrasting to the results with flat dies used in the majority of studies.The feedstocks used in Powder Injection Moulding (PIM) are formed by solid particles incorporated into a binder with presence of surfactant enabling manufacturing of highly concentrated suspensions. Relatively even distribution of particles is violated in the close vicinity of the walls. A thin layer adjacent to the walls is pre-dominantly occupied by the binder only and at the interface wall-binder so-called wall slip occurs. Success and acceptance of an Injection Moulding step in PIM process primarily subjects to this wall slip phenomenon. The wall slip was qualitatively and quantitatively measured using a capillary rheometer equipped with the dies of different entrance angles. It was proved that this differentness has a significant impact on an appearance of wall slip (its intensity). Using four PIM feedstocks reliable slip velocity values of highly filled compounds were obtained for conical dies contrasting to the results with flat dies used in the majority of studies.

A Jimenezmorales - One of the best experts on this subject based on the ideXlab platform.

  • new processing route for zrsio4 by Powder Injection Moulding using an eco friendly binder system
    Boletin De La Sociedad Espanola De Ceramica Y Vidrio, 2015
    Co-Authors: C Abajo, A Jimenezmorales, J M Torralba
    Abstract:

    New processing route has been developed for zircon based on Powder Injection Moulding (PIM). Raw zircon Powders, obtained from mineral sands, have been processed using a new water soluble binder system composed of PEG and CAB. Water solvent debinding stage has been studied in depth. On one hand, influence of some debinding parameters (temperature, debinding rate, additives and the use of climate chamber) has been tested. On the other hand, new binder systems were tested and compared with previous studied ones. The full PIM process has been carried out. Mixing, Injection molding, solvent and thermal debinding and finally sintering, have been performed with the optimal binder system composition. Homogeneity along the process has been assessed by thermo-gravimetric analysis and by density measurements. After sintering, dimensional variation, density and fracture surface obtained after flexural strength test, have been analyzed. A competitive flexural strength has been achieved for injected zircon samples.

  • optimisation of eco friendly binary binder system for Powder Injection Moulding
    Powder Metallurgy, 2014
    Co-Authors: C Abajo, Javier Ruiz Hidalgo, A Jimenezmorales, J M Torralba
    Abstract:

    In recent years, many efforts have been made to obtain more environmentally acceptable Powder Injection Moulding processes. In this sense, the purpose of this study is to optimise an eco-binder based on polyethylene glycol (PEG) as a water soluble component and cellulose acetate butyrate (CAB) as a natural backbone polymer derived from cellulose for Powder Injection Moulding of zirconium silicate Powders until a solvent debinding stage. Four different feedstocks have been investigated. As well as, a volume fraction of PEG and CAB 70/30 (vol.-%) and a solid loading of 57·5 (vol.-%) were maintained, molecular weights of polymers were combined in order to minimize distortion during binder solvent extraction. Water solvent debinding was carried out at three temperatures stepwise during 5 h. As a result, efficient removal of the PEG as well as free defects samples were obtained after solvent debinding for binder systems based on low molecular weight of PEG.

  • effect of a binder system on the low pressure Powder Injection Moulding of water soluble zircon feedstocks
    Journal of The European Ceramic Society, 2013
    Co-Authors: Javier Ruiz Hidalgo, A Jimenezmorales, J M Torralba, C Abajo
    Abstract:

    Abstract Micronized natural zircon sand Powders were used as a raw material to conduct low-pressure Powder Injection Moulding (LPPIM) processes. PIM could lead to new technological applications for this mineral, which has very stable dimensional behaviour with changing temperature. Zircon Powders that have unconventional attributes for PIM (in terms of size and morphology) were mixed with poly(ethylene glycol) (PEG) based binders. Combinations of this water-soluble substance with different polymers, including low-density polyethylene (LDPE) and several types of acetate butyrate celluloses (CAB), were investigated. The influence of acetyl, butyryl and hydroxyl groups on the behaviour of the created feedstocks at different process stages and on the final piece properties were studied. The higher affinity of CAB with PEG and zircon Powders compared with LDPE could result in improved densification and properties, but the butyryl, acetyl and hydroxyls groups affect the processability of these feedstocks.

  • thermal stability and degradation kinetics of feedstocks for Powder Injection Moulding a new way to determine optimal solid loading
    Polymer Degradation and Stability, 2013
    Co-Authors: Javier Ruiz Hidalgo, A Jimenezmorales, J M Torralba
    Abstract:

    Abstract Degradation kinetics and the thermal stability of zircon Powder Injection Moulding feedstocks (PIM) based on cellulose acetate butyrate (CAB) and polyethylene glycol (PEG) binders were investigated using simultaneous thermogravimetric analysis (STA). The initial decomposition temperature (IDT) and the integral procedure decomposition temperature (IPDT) were used to analyse the thermal stability of the binder system as a function of the solid loading content. The degradation kinetics was studied, and the degradation activation energy was assessed for varying zircon Powder contents using isoconversional methods. All the methodologies revealed changes in the thermal degradation behaviours of the feedstocks for solid loadings that were previously determined to correspond to optimal solid loadings using other experimental procedures. These results may promote the proposal of thermodynamic degradation studies of feedstocks as an alternative or complementary technique to determine optimal solid loading contents in Powder Injection Moulding (PIM). The studies in this paper also examined PIM process operation temperatures for zircon feedstocks.

  • Powder Injection Moulding processing of small parts of complex shape
    International Journal of Microstructure and Materials Properties, 2013
    Co-Authors: J M Torralba, Javier Ruiz Hidalgo, A Jimenezmorales
    Abstract:

    Powder Injection Moulding (PIM), Metal Injection Moulding (MIM) when is limited to metals, is a fabrication route of parts with the final shape desired. This process combines the high capability of polymer Injection Moulding to produce complex shapes with the advantages of a Powder route to process metallic, ceramic or composites materials. The process has some limitations that comes from different technological steps involved in the production of the part (feedstock production, Injection, debinding and sintering). All of these different steps can be industrially controlled, being the PIM process a real alternative to produce complex parts in a high rate production method that can compete with many other processing methods to produce materials. In this work, we will go through the different steps of this manufacturing process, making special emphasis on the solutions provided by the Powder technology group of the University Carlos III of Madrid (UC3M).