Electrically assisted blanking using the electroplasticity of ultra-high strength metal alloys

Woong Kim; Kyeong Ho Yeom; Nguyen Trung Thien; Sung Tae Hong; Byung Kwon Min; Soo Ik Oh; Moon Jo Kim; Heung Nam Han; Hyun Woo Lee

doi:10.1016/j.cirp.2014.03.064

Electrically assisted blanking using the electroplasticity of ultra-high strength metal alloys

Woong Kim, Kyeong Ho Yeom, Nguyen Trung Thien, Sung Tae Hong, Byung Kwon Min, Soo Ik Oh, Moon Jo Kim, Heung Nam Han, Hyun Woo Lee

Department of Mechanical Engineering

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

34 Citations (Scopus)

Abstract

The electroplastic tensile behavior of ultra-high strength steels (UHSS) subject to a single pulse of electric current is briefly introduced, and electrically-assisted (EA) blanking, which utilizes this electroplastic characteristic, is suggested. The experimental result shows that the blanking load of EA blanking is clearly lower than that of blanking with local resistance heating, which is lower than that of cold blanking. No significant change in material properties was observed in the EA blanked parts at the electric energy densities selected in the present study. EA blanking or trimming is expected to minimize or even eliminate the need for expensive and time-consuming laser trimming in the manufacture of automotive parts using UHSS.

Original language	English
Pages (from-to)	273-276
Number of pages	4
Journal	CIRP Annals - Manufacturing Technology
Volume	63
Issue number	1
DOIs	https://doi.org/10.1016/j.cirp.2014.03.064
Publication status	Published - 2014

Bibliographical note

Funding Information:
This work was also supported by the IT R&D program of MOTIE/KEIT ( 10044807 ). Moon-Jo Kim and Heung Nam Han were supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Science, ICT and Future Planning ( 2013008806 ).

All Science Journal Classification (ASJC) codes

Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.cirp.2014.03.064

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title = "Electrically assisted blanking using the electroplasticity of ultra-high strength metal alloys",

abstract = "The electroplastic tensile behavior of ultra-high strength steels (UHSS) subject to a single pulse of electric current is briefly introduced, and electrically-assisted (EA) blanking, which utilizes this electroplastic characteristic, is suggested. The experimental result shows that the blanking load of EA blanking is clearly lower than that of blanking with local resistance heating, which is lower than that of cold blanking. No significant change in material properties was observed in the EA blanked parts at the electric energy densities selected in the present study. EA blanking or trimming is expected to minimize or even eliminate the need for expensive and time-consuming laser trimming in the manufacture of automotive parts using UHSS.",

author = "Woong Kim and Yeom, {Kyeong Ho} and Thien, {Nguyen Trung} and Hong, {Sung Tae} and Min, {Byung Kwon} and {Ik Oh}, Soo and Kim, {Moon Jo} and Han, {Heung Nam} and Lee, {Hyun Woo}",

note = "Funding Information: This work was also supported by the IT R&D program of MOTIE/KEIT ( 10044807 ). Moon-Jo Kim and Heung Nam Han were supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Science, ICT and Future Planning ( 2013008806 ). ",

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AU - Kim, Woong

AU - Yeom, Kyeong Ho

AU - Thien, Nguyen Trung

AU - Hong, Sung Tae

AU - Min, Byung Kwon

AU - Ik Oh, Soo

AU - Kim, Moon Jo

AU - Han, Heung Nam

AU - Lee, Hyun Woo

N1 - Funding Information: This work was also supported by the IT R&D program of MOTIE/KEIT ( 10044807 ). Moon-Jo Kim and Heung Nam Han were supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Science, ICT and Future Planning ( 2013008806 ).

PY - 2014

Y1 - 2014

N2 - The electroplastic tensile behavior of ultra-high strength steels (UHSS) subject to a single pulse of electric current is briefly introduced, and electrically-assisted (EA) blanking, which utilizes this electroplastic characteristic, is suggested. The experimental result shows that the blanking load of EA blanking is clearly lower than that of blanking with local resistance heating, which is lower than that of cold blanking. No significant change in material properties was observed in the EA blanked parts at the electric energy densities selected in the present study. EA blanking or trimming is expected to minimize or even eliminate the need for expensive and time-consuming laser trimming in the manufacture of automotive parts using UHSS.

AB - The electroplastic tensile behavior of ultra-high strength steels (UHSS) subject to a single pulse of electric current is briefly introduced, and electrically-assisted (EA) blanking, which utilizes this electroplastic characteristic, is suggested. The experimental result shows that the blanking load of EA blanking is clearly lower than that of blanking with local resistance heating, which is lower than that of cold blanking. No significant change in material properties was observed in the EA blanked parts at the electric energy densities selected in the present study. EA blanking or trimming is expected to minimize or even eliminate the need for expensive and time-consuming laser trimming in the manufacture of automotive parts using UHSS.

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Electrically assisted blanking using the electroplasticity of ultra-high strength metal alloys

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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