Analysis of surface defects on industrial casting tools for automotive applications after machine hammer peening
Analysis of surface defects on industrial casting tools for automotive applications after machine hammer peening
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汽车用工业铸造工具机锤喷丸后的表面缺陷分析
DOI：
10.1016/j.proeng.2017.10.1139
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Klocke
中科院分区：
文献类型：
--
作者：
Mannens;Delforno;Trauth;Feuerhack;Kittel;Klocke
先进高强度钢（AHSS）作为汽车车身部件材料的使用量增加，导致汽车重量不断减轻，从而降低了二氧化碳排放量。这种重量减轻是由于AHSS的屈服强度和抗拉强度比传统钢高。然而，高强度的AHSS会导致更高的成形工具载荷。为了提高刀具表面的耐磨性，采用机械表面处理。本文对EN-JS2070拉深件的机锤强化增量成形进行了研究。在过去，球墨铸铁EN-JS2070在MHP后观察到小的表面缺陷。造成这些表面缺陷的原因尚不清楚。本文的目的是研究和描述MHP工艺参数与EN-JS2070球墨铸铁表面缺陷的因果关系。表面缺陷的发生与MHP参数的设置无关，并且微观结构研究表明，MHP后表面缺陷的主要原因是缩孔的存在。
The increased usage of advanced high strength steels (AHSS) as material for car body parts leads to a continuous reduction of car weight and thus a lowering of CO2emissions. This weight reduction results from higher yield and tensile strength of AHSS than conventional steel grades. However, the higher strength of AHSS leads to higher loadings of the forming tools. To increase the wear resistance of the tool surfaces, mechanical surface treatments are used. In this work, the incremental forming of EN-JS2070 deep drawing tools by means of machine hammer peening (MHP) is investigated. In the past, small surface defects were observed after MHP of nodular cast iron EN-JS2070. The cause for the occurrence of these surface defects is unknown. The aim of this work is the investigation and description of the logical relationship between the cause and effect of MHP process parameters and the surface defects on nodular cast iron EN-JS2070. The surface defects occurred independent of the chosen MHP parameter setup at one critical zone on the hammered deep drawing tools and the investigated microstructure showed the existence of shrink holes, which were primarily responsible for the occurrence of the surface defects after MHP.
DOI：
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发表时间：
2013
期刊：
影响因子：
--
作者：
M. Steitz;K. Weigel;Martin Weber;J. Scheil;C. Müller
通讯作者：
C. Müller
石墨相对铸铁弹塑性变形行为的影响
DOI：
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发表时间：
2007
期刊：
影响因子：
--
作者：
T. Sjögren
通讯作者：
T. Sjögren
Entwicklung von Austenitisch-Ferritischem Gusseisen (ADI) aus EN-JS2070：Mikrostruktur、mechanische Eigenschaften 和 deren Auswirkung auf die Oberflächenbearbeitung durch das Maschinelle Oberflächenhämmern
DOI：
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发表时间：
2016
期刊：
影响因子：
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作者：
Jan Scheil
通讯作者：
Jan Scheil