Luca Narcisi
Optimization of the CEM printing process for a 16MnCr5 and Analysis of the Material behavior during debinding and sintering.
Rel. Giovanni Maizza. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Aerospaziale, 2022
Abstract
Composite extrusion modeling (CEM process) combines the metal injection molding process (MIM process), which is already established worldwide, with the process technologies from additive manufacturing. It is largely evolving into a technology with production possibilities for products of different sizes, with high accuracy and more complex geometries. 16MnCr5 case hardening steel is typically used and its material properties are well known and understood. However, the resulting material properties following the printing, debinding and sintering sequence must be taken into consideration as it is a sensitive process for the temperatures reached and porosity can compromise the mechanical properties of the component. This paper presents a study on the processing of feedstock composed of 16MnCr5 with a binder of 6.8%, formed by (beheic acid, polyamide and plasticizer).
The printing carried out with an ExAM 255 printer (AIM3D, Rostock, Germany) is optimized, by varying the extrusion multiplier and temperature parameters of the nozzle, to obtain the maximum possible density
Relatori
Anno Accademico
Tipo di pubblicazione
Numero di pagine
Informazioni aggiuntive
Corso di laurea
Classe di laurea
Ente in cotutela
Aziende collaboratrici
URI
![]() |
Modifica (riservato agli operatori) |
