Dendritic electrolytic copper powder was sintered using a newly developed friction sintering process. Green copper pellets of 14 mm height and 16 mm diameter were prepared at room temperature with 5-ton load and 60 seconds holding time. The pellets were sintered using a newly developed rapid, cost-effective, energy efficient, green friction sintering process that allows for easy and quick removal of sintered products. An aluminum plate of 14 mm thickness and 16.1 mm diameter through hole was used to hold green pellets during sintering. Frictional heat and pressure were applied on a top plate through a rotating 18 mm diameter, flat shoulder, WC tool. Sintering was performed at 12 kN axial load and 800 rpm tool rotational speed. Sintering temperatures were measured using K-type thermocouples. SEM (scanning electron microscope) images of fractured surfaces for sintered pellets show neck formation between copper particles. The neck formation is approximately uniform throughout the depth. This is in-line with hardness results along the thickness of the pellet. The process holds promise particularly for solid-state sintering of metal based powders.
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ASME 2018 13th International Manufacturing Science and Engineering Conference
June 18–22, 2018
College Station, Texas, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5138-8
PROCEEDINGS PAPER
Friction Sintering of Copper Powder Using a New Rapid, Cost Effective and Energy Efficient Process
Vyas Mani Sharma,
Vyas Mani Sharma
Indian Institute of Technology, Kharagpur, India
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Debanjan Maity,
Debanjan Maity
Indian Institute of Technology, Kharagpur, India
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Vikranth Racherla,
Vikranth Racherla
Indian Institute of Technology, Kharagpur, India
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Surjya Kanta Pal
Surjya Kanta Pal
Indian Institute of Technology, Kharagpur, India
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Vyas Mani Sharma
Indian Institute of Technology, Kharagpur, India
Debanjan Maity
Indian Institute of Technology, Kharagpur, India
Vikranth Racherla
Indian Institute of Technology, Kharagpur, India
Surjya Kanta Pal
Indian Institute of Technology, Kharagpur, India
Paper No:
MSEC2018-6684, V004T03A008; 8 pages
Published Online:
September 24, 2018
Citation
Sharma, VM, Maity, D, Racherla, V, & Pal, SK. "Friction Sintering of Copper Powder Using a New Rapid, Cost Effective and Energy Efficient Process." Proceedings of the ASME 2018 13th International Manufacturing Science and Engineering Conference. Volume 4: Processes. College Station, Texas, USA. June 18–22, 2018. V004T03A008. ASME. https://doi.org/10.1115/MSEC2018-6684
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