Experimental Analysis on Behaviour of Adhesive Scale in Hot Die Forging to Improve Surface Quality of Automobile Parts

Deep dent defects on the automobile parts produced by hot die forging have become problems because the dents were disadvantageous to the strength of these parts. The dents may have been probably caused by scales of hot billets. The behaviour of these thick scales in hot die forging was experimentall...

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Autores principales:	Kazuhiko Kitamura, Kazuhito Asai, Motoki Terano
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2014
Materias:	tribology forging adhesion plastic deformation Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/8912fd7dd1eb4f1dbd40ca7bd47e7426
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spelling	oai:doaj.org-article:8912fd7dd1eb4f1dbd40ca7bd47e74262021-11-05T09:23:26ZExperimental Analysis on Behaviour of Adhesive Scale in Hot Die Forging to Improve Surface Quality of Automobile Parts1881-219810.2474/trol.9.80https://doaj.org/article/8912fd7dd1eb4f1dbd40ca7bd47e74262014-07-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/9/3/9_80/_pdf/-char/enhttps://doaj.org/toc/1881-2198Deep dent defects on the automobile parts produced by hot die forging have become problems because the dents were disadvantageous to the strength of these parts. The dents may have been probably caused by scales of hot billets. The behaviour of these thick scales in hot die forging was experimentally analyzed in this paper. The dents gradually grew bigger and changed the shapes every forging shot before the scales periodically transferred to the workpiece. The deep dent defects frequently formed at the part of the workpiece with large plastic deformation. Additionally, it was found the scales consisted of the oxide/non-oxide layers derived from the hot billet materials by microscope observation and electron probe micro analysis. It was estimated that the thicker scales were formed by layered pick-up and adhesion under severe tribological conditions. Adjusting preform shape and controlling lubrication were proposed to decrease the defects.Kazuhiko KitamuraKazuhito AsaiMotoki TeranoJapanese Society of Tribologistsarticletribologyforgingadhesionplastic deformationPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 9, Iss 3, Pp 80-85 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	tribology forging adhesion plastic deformation Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	tribology forging adhesion plastic deformation Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Kazuhiko Kitamura Kazuhito Asai Motoki Terano Experimental Analysis on Behaviour of Adhesive Scale in Hot Die Forging to Improve Surface Quality of Automobile Parts
description	Deep dent defects on the automobile parts produced by hot die forging have become problems because the dents were disadvantageous to the strength of these parts. The dents may have been probably caused by scales of hot billets. The behaviour of these thick scales in hot die forging was experimentally analyzed in this paper. The dents gradually grew bigger and changed the shapes every forging shot before the scales periodically transferred to the workpiece. The deep dent defects frequently formed at the part of the workpiece with large plastic deformation. Additionally, it was found the scales consisted of the oxide/non-oxide layers derived from the hot billet materials by microscope observation and electron probe micro analysis. It was estimated that the thicker scales were formed by layered pick-up and adhesion under severe tribological conditions. Adjusting preform shape and controlling lubrication were proposed to decrease the defects.
format	article
author	Kazuhiko Kitamura Kazuhito Asai Motoki Terano
author_facet	Kazuhiko Kitamura Kazuhito Asai Motoki Terano
author_sort	Kazuhiko Kitamura
title	Experimental Analysis on Behaviour of Adhesive Scale in Hot Die Forging to Improve Surface Quality of Automobile Parts
title_short	Experimental Analysis on Behaviour of Adhesive Scale in Hot Die Forging to Improve Surface Quality of Automobile Parts
title_full	Experimental Analysis on Behaviour of Adhesive Scale in Hot Die Forging to Improve Surface Quality of Automobile Parts
title_fullStr	Experimental Analysis on Behaviour of Adhesive Scale in Hot Die Forging to Improve Surface Quality of Automobile Parts
title_full_unstemmed	Experimental Analysis on Behaviour of Adhesive Scale in Hot Die Forging to Improve Surface Quality of Automobile Parts
title_sort	experimental analysis on behaviour of adhesive scale in hot die forging to improve surface quality of automobile parts
publisher	Japanese Society of Tribologists
publishDate	2014
url	https://doaj.org/article/8912fd7dd1eb4f1dbd40ca7bd47e7426
work_keys_str_mv	AT kazuhikokitamura experimentalanalysisonbehaviourofadhesivescaleinhotdieforgingtoimprovesurfacequalityofautomobileparts AT kazuhitoasai experimentalanalysisonbehaviourofadhesivescaleinhotdieforgingtoimprovesurfacequalityofautomobileparts AT motokiterano experimentalanalysisonbehaviourofadhesivescaleinhotdieforgingtoimprovesurfacequalityofautomobileparts
_version_	1718444360131936256

Experimental Analysis on Behaviour of Adhesive Scale in Hot Die Forging to Improve Surface Quality of Automobile Parts

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