Determining process parameters for successful material reclamation of lead-free brass chips using hot forging operations: Lubrication

J. Johansson; O. Gutnichenko; J. E. Ståhl; V. Bushlya; F. Schultheiss

doi:10.1016/j.procir.2019.01.086

Determining process parameters for successful material reclamation of lead-free brass chips using hot forging operations: Lubrication

J. Johansson, O. Gutnichenko, J. E. Ståhl, V. Bushlya, F. Schultheiss

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Abstract

When small and hollow components are being manufactured, it is not uncommon that a majority of the workpiece material is removed by machining. A demand for parts made with lead-free brass alloys can potentially increase the manufacturing cost and therefore it is necessary to investigate ways to increase the material utilization. As part of a more resource efficient production, a method for reusing chips from metal cutting in brass using hot forging operations is investigated. In this study, the brass alloy CW724R is used. Different lubrication agents are used, including mineral oil and vegetable oil with and without addition of nano-sized graphite platelets, GnP, in the production of green compacts. Material properties of the green compacts and the finished products are analyzed using mechanical testing and microscopy. Quality of the finished product is evaluated using multi-variable regression analysis. The results of the statistical analysis indicate the best mechanical properties when using 0.2 - 0.25 vol. % GnP suspension in oil and 0.15 - 0.2 wt. % oil mixed with the chips before compaction. Microscopy shows diffusion bonding between the chips after forging, yet some porosities is still observed. This indicates potential for the investigated material reclamation method.

Original language	English
Title of host publication	26th CIRP Conference on Life Cycle Engineering (LCE) Purdue University, West Lafayette, IN, USA May 7-9, 2019
Publisher	Elsevier
Pages	108-113
Number of pages	6
DOIs	https://doi.org/10.1016/j.procir.2019.01.086
Publication status	Published - 2019 May 4
Event	26th CIRP Conference on Life Cycle Engineering, LCE 2019 - West Lafayette, United States Duration: 2019 May 7 → 2019 May 9

Publication series

Name	Procedia CIRP
Publisher	Elsevier
Volume	80
ISSN (Print)	2212-8271

Conference

Conference	26th CIRP Conference on Life Cycle Engineering, LCE 2019
Country/Territory	United States
City	West Lafayette
Period	2019/05/07 → 2019/05/09

Subject classification (UKÄ)

Metallurgy and Metallic Materials

Free keywords

Hot Forging
Lead-Free Brass
Material Reclaimation
Resource Efficient Production

Access to Document

10.1016/j.procir.2019.01.086Licence: CC BY-NC-ND

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Cite this

Johansson, J., Gutnichenko, O., Ståhl, J. E., Bushlya, V., & Schultheiss, F. (2019). Determining process parameters for successful material reclamation of lead-free brass chips using hot forging operations: Lubrication. In 26th CIRP Conference on Life Cycle Engineering (LCE) Purdue University, West Lafayette, IN, USA May 7-9, 2019 (pp. 108-113). (Procedia CIRP; Vol. 80). Elsevier. https://doi.org/10.1016/j.procir.2019.01.086

@inproceedings{9ed4d19d6003414ab19a7014f11afb69,

title = "Determining process parameters for successful material reclamation of lead-free brass chips using hot forging operations: Lubrication",

abstract = "When small and hollow components are being manufactured, it is not uncommon that a majority of the workpiece material is removed by machining. A demand for parts made with lead-free brass alloys can potentially increase the manufacturing cost and therefore it is necessary to investigate ways to increase the material utilization. As part of a more resource efficient production, a method for reusing chips from metal cutting in brass using hot forging operations is investigated. In this study, the brass alloy CW724R is used. Different lubrication agents are used, including mineral oil and vegetable oil with and without addition of nano-sized graphite platelets, GnP, in the production of green compacts. Material properties of the green compacts and the finished products are analyzed using mechanical testing and microscopy. Quality of the finished product is evaluated using multi-variable regression analysis. The results of the statistical analysis indicate the best mechanical properties when using 0.2 - 0.25 vol. % GnP suspension in oil and 0.15 - 0.2 wt. % oil mixed with the chips before compaction. Microscopy shows diffusion bonding between the chips after forging, yet some porosities is still observed. This indicates potential for the investigated material reclamation method.",

keywords = "Hot Forging, Lead-Free Brass, Material Reclaimation, Resource Efficient Production",

author = "J. Johansson and O. Gutnichenko and St{\aa}hl, {J. E.} and V. Bushlya and F. Schultheiss",

year = "2019",

month = may,

day = "4",

doi = "10.1016/j.procir.2019.01.086",

language = "English",

series = "Procedia CIRP",

publisher = "Elsevier",

pages = "108--113",

booktitle = "26th CIRP Conference on Life Cycle Engineering (LCE) Purdue University, West Lafayette, IN, USA May 7-9, 2019",

address = "United States",

note = "26th CIRP Conference on Life Cycle Engineering, LCE 2019 ; Conference date: 07-05-2019 Through 09-05-2019",

}

Johansson, J, Gutnichenko, O , Ståhl, JE , Bushlya, V & Schultheiss, F 2019, Determining process parameters for successful material reclamation of lead-free brass chips using hot forging operations: Lubrication. in 26th CIRP Conference on Life Cycle Engineering (LCE) Purdue University, West Lafayette, IN, USA May 7-9, 2019. Procedia CIRP, vol. 80, Elsevier, pp. 108-113, 26th CIRP Conference on Life Cycle Engineering, LCE 2019, West Lafayette, United States, 2019/05/07. https://doi.org/10.1016/j.procir.2019.01.086

Determining process parameters for successful material reclamation of lead-free brass chips using hot forging operations: Lubrication. / Johansson, J.; Gutnichenko, O.; Ståhl, J. E. et al.
26th CIRP Conference on Life Cycle Engineering (LCE) Purdue University, West Lafayette, IN, USA May 7-9, 2019. Elsevier, 2019. p. 108-113 (Procedia CIRP; Vol. 80).

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Determining process parameters for successful material reclamation of lead-free brass chips using hot forging operations: Lubrication

AU - Johansson, J.

AU - Gutnichenko, O.

AU - Ståhl, J. E.

AU - Bushlya, V.

AU - Schultheiss, F.

PY - 2019/5/4

Y1 - 2019/5/4

N2 - When small and hollow components are being manufactured, it is not uncommon that a majority of the workpiece material is removed by machining. A demand for parts made with lead-free brass alloys can potentially increase the manufacturing cost and therefore it is necessary to investigate ways to increase the material utilization. As part of a more resource efficient production, a method for reusing chips from metal cutting in brass using hot forging operations is investigated. In this study, the brass alloy CW724R is used. Different lubrication agents are used, including mineral oil and vegetable oil with and without addition of nano-sized graphite platelets, GnP, in the production of green compacts. Material properties of the green compacts and the finished products are analyzed using mechanical testing and microscopy. Quality of the finished product is evaluated using multi-variable regression analysis. The results of the statistical analysis indicate the best mechanical properties when using 0.2 - 0.25 vol. % GnP suspension in oil and 0.15 - 0.2 wt. % oil mixed with the chips before compaction. Microscopy shows diffusion bonding between the chips after forging, yet some porosities is still observed. This indicates potential for the investigated material reclamation method.

AB - When small and hollow components are being manufactured, it is not uncommon that a majority of the workpiece material is removed by machining. A demand for parts made with lead-free brass alloys can potentially increase the manufacturing cost and therefore it is necessary to investigate ways to increase the material utilization. As part of a more resource efficient production, a method for reusing chips from metal cutting in brass using hot forging operations is investigated. In this study, the brass alloy CW724R is used. Different lubrication agents are used, including mineral oil and vegetable oil with and without addition of nano-sized graphite platelets, GnP, in the production of green compacts. Material properties of the green compacts and the finished products are analyzed using mechanical testing and microscopy. Quality of the finished product is evaluated using multi-variable regression analysis. The results of the statistical analysis indicate the best mechanical properties when using 0.2 - 0.25 vol. % GnP suspension in oil and 0.15 - 0.2 wt. % oil mixed with the chips before compaction. Microscopy shows diffusion bonding between the chips after forging, yet some porosities is still observed. This indicates potential for the investigated material reclamation method.

KW - Hot Forging

KW - Lead-Free Brass

KW - Material Reclaimation

KW - Resource Efficient Production

U2 - 10.1016/j.procir.2019.01.086

DO - 10.1016/j.procir.2019.01.086

M3 - Paper in conference proceeding

AN - SCOPUS:85067209998

T3 - Procedia CIRP

SP - 108

EP - 113

BT - 26th CIRP Conference on Life Cycle Engineering (LCE) Purdue University, West Lafayette, IN, USA May 7-9, 2019

PB - Elsevier

T2 - 26th CIRP Conference on Life Cycle Engineering, LCE 2019

Y2 - 7 May 2019 through 9 May 2019

ER -

Johansson J, Gutnichenko O , Ståhl JE , Bushlya V , Schultheiss F. Determining process parameters for successful material reclamation of lead-free brass chips using hot forging operations: Lubrication. In 26th CIRP Conference on Life Cycle Engineering (LCE) Purdue University, West Lafayette, IN, USA May 7-9, 2019. Elsevier. 2019. p. 108-113. (Procedia CIRP). doi: 10.1016/j.procir.2019.01.086

Determining process parameters for successful material reclamation of lead-free brass chips using hot forging operations: Lubrication

Abstract

Publication series

Conference

Subject classification (UKÄ)

Free keywords

Access to Document

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