Powder content in powder extrusion moulding of tool steel: Dimensional stability, shrinkage and hardness

Joamin Gonzalez-Gutierrez; Yvonne Thompson; David Handl; Santiago Cano Cano; Stephan Schuschnigg; Peter Felfer; Christian Kukla; Clemens Holzer; Carlo Burkhardt

doi:https://doi.org/10.1016/j.matlet.2020.128909

Powder content in powder extrusion moulding of tool steel: Dimensional stability, shrinkage and hardness

Joamin Gonzalez-Gutierrez, Yvonne Thompson, David Handl, Santiago Cano Cano, Stephan Schuschnigg, Peter Felfer, Christian Kukla, Clemens Holzer, Carlo Burkhardt

Research output: Contribution to journal › Article › Research › peer-review

3 Citations (Scopus)

Abstract

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.

Original language	English
Article number	128909
Number of pages	5
Journal	Materials letters
Volume	283
Issue number	January 2021
DOIs	https://doi.org/10.1016/j.matlet.2020.128909
Publication status	Published - 15 Jan 2021

Keywords

Powder extrusion moulding
Steel
highly-filled polymer
Debinding
Sintering
Profile extrusion
Metals and alloys
Powder technology
Polymers

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https://doi.org/10.1016/j.matlet.2020.128909

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title = "Powder content in powder extrusion moulding of tool steel: Dimensional stability, shrinkage and hardness",

abstract = "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. ",

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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

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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

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VL - 283

JO - Materials letters

JF - Materials letters

IS - January 2021

M1 - 128909

ER -

Powder content in powder extrusion moulding of tool steel: Dimensional stability, shrinkage and hardness

Abstract

Keywords

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