scholarly journals A Study on the Sintering Behavior of T42 High Speed Steel by Powder Injection Molding (PIM) Process

2012 ◽  
Vol 19 (2) ◽  
pp. 117-121 ◽  
Author(s):  
Dong-Wook Park ◽  
Hye-Seong Kim ◽  
Young-Sam Kwon ◽  
Kwon-Koo Cho ◽  
Su-Gun Lim ◽  
...  
2014 ◽  
Vol 40 (7) ◽  
pp. 2415-2421 ◽  
Author(s):  
Dong-Wook Park ◽  
Dae-Hwan Kim ◽  
Hye-Seong Kim ◽  
Youg-Sam Kwon ◽  
Kwon-Koo Cho ◽  
...  

2011 ◽  
Vol 17 (6) ◽  
pp. 937-942 ◽  
Author(s):  
Kyoung-Rok Do ◽  
Sung-Hyun Choi ◽  
Young-Sam Kwon ◽  
Dong-Wook Park ◽  
Kwon-Koo Cho ◽  
...  

2006 ◽  
Vol 514-516 ◽  
pp. 569-573
Author(s):  
João Franklin Liberati ◽  
Oscar O. Araujo Filho ◽  
Waldemar Alfredo Monteiro ◽  
Iara M. Esposito ◽  
Rejane A. Nogueira ◽  
...  

Low-pressure powder injection molding was used to obtain AISI T15 high speed steel parts. The binders used were based on paraffin wax, low density polyethylene and stearic acid. The metals powders were characterized in terms of morphology, particle size distribution. The mixture was injected in the shape of square bar specimens to evaluate the performance of the injection in the green state, and then sintered. The samples were injected under the pressures of 0.4, 0.5 and 0.7MPa and at temperatures varying from 110 to 150°C aiming the optimization of the process. The results of the variation of injection pressure were evaluated by measuring the density of the green parts. Debinding was carried out in two steps: first, the molded part was immersed in heptane to remove the major component of the binder and then heated to remove the remaining binder. A second step debinding and sintering were performed in a single step. This procedure shortened considerably the debinding and sintering time.


2015 ◽  
Vol 279 ◽  
pp. 196-202 ◽  
Author(s):  
Joon-Phil Choi ◽  
Geon-Yong Lee ◽  
Jun-Il Song ◽  
Won-Sik Lee ◽  
Jai-Sung Lee

2019 ◽  
Vol 809 ◽  
pp. 148-152
Author(s):  
Volker Piotter ◽  
Metin Tueluemen ◽  
Thomas Hanemann ◽  
Michael J. Hoffmann ◽  
Benjamin Ehreiser

Ceramic Matrix Composites (CMC) offer improved mechanical properties, especially higher toughness, preferably at elevated temperatures. Fields of application are, for example, highly hot stressed components of aero engines.Processing of Ceramic Matrix Composites by powder injection molding offers attractive economic benefits, however, it represents a considerable challenge. Development of a process chain for the ceramic injection molding of Al2O3 short fiber CMC had started by feedstock preparation and characterization. Fiber content varied between 10 to 50 vol.% whereas for binder a well-examined system from KIT was chosen. The fiber content showed a minor effect on the rheological properties but fiber orientation depended strongly on the apparent shear profile. The sintering behavior was affected as well, i.e. higher densities were achieved.


2020 ◽  
Author(s):  
Elena Glazkova ◽  
Nikolay Rodkevich ◽  
Nikita Toropkov ◽  
Aleksandr Pervikov ◽  
Marat Lerner

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