Powder content in powder extrusion moulding of tool steel: Dimensional stability, shrinkage and hardness
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In: Materials letters, Vol. 283, No. January 2021, 128909, 15.01.2021.
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TY - JOUR
T1 - Powder content in powder extrusion moulding of tool steel
T2 - Dimensional stability, shrinkage and hardness
AU - Gonzalez-Gutierrez, Joamin
AU - Thompson, Yvonne
AU - Handl, David
AU - Cano Cano, Santiago
AU - Schuschnigg, Stephan
AU - Felfer, Peter
AU - Kukla, Christian
AU - Holzer, Clemens
AU - Burkhardt, Carlo
PY - 2021/1/15
Y1 - 2021/1/15
N2 - Powder extrusion moulding (PEM) is a versatile and cost-effective technology for producing bi-dimensional shapes, (e.g. tubes and profiles) from metals, ceramics and cermets. PEM quality is affected by powder content; therefore, three highly-filled polymeric compounds containing 50, 55, 60 vol% tool steel powder were prepared and extruded to profiles. Extruded parts were debound in cyclohexane and sintered in forming gas (Ar + 5% H 2) to obtain dense, sintered parts. The dimensional stability, the shrinkage and the hardness were measured. Minimum shrinkage and higher dimensional stability were obtained when the powder content was the highest (60 vol%). Specimens with 50 vol% powder had the highest hardness due to the initial higher binder content and resulting carbon content.
AB - Powder extrusion moulding (PEM) is a versatile and cost-effective technology for producing bi-dimensional shapes, (e.g. tubes and profiles) from metals, ceramics and cermets. PEM quality is affected by powder content; therefore, three highly-filled polymeric compounds containing 50, 55, 60 vol% tool steel powder were prepared and extruded to profiles. Extruded parts were debound in cyclohexane and sintered in forming gas (Ar + 5% H 2) to obtain dense, sintered parts. The dimensional stability, the shrinkage and the hardness were measured. Minimum shrinkage and higher dimensional stability were obtained when the powder content was the highest (60 vol%). Specimens with 50 vol% powder had the highest hardness due to the initial higher binder content and resulting carbon content.
KW - Powder extrusion moulding
KW - Steel
KW - highly-filled polymer
KW - Debinding
KW - Sintering
KW - Profile extrusion
KW - Metals and alloys
KW - Powder technology
KW - Polymers
UR - http://www.scopus.com/inward/record.url?scp=85094881716&partnerID=8YFLogxK
U2 - https://doi.org/10.1016/j.matlet.2020.128909
DO - https://doi.org/10.1016/j.matlet.2020.128909
M3 - Article
VL - 283
JO - Materials letters
JF - Materials letters
SN - 0167-577X
IS - January 2021
M1 - 128909
ER -
