Wear Properties of High-Hardness Tool Steel by Directed Energy Deposition Based Additive Manufacturing

Journal of Welding and Joining Pub Date : 2023-06-30 DOI:10.5781/jwj.2023.41.3.4

Sungwook Kim, Chang-Keun Chun

{"title":"Wear Properties of High-Hardness Tool Steel by Directed Energy Deposition Based Additive Manufacturing","authors":"Sungwook Kim, Chang-Keun Chun","doi":"10.5781/jwj.2023.41.3.4","DOIUrl":null,"url":null,"abstract":"Recently, with the increase in the application of UHSS plates in automobiles, the service life of existing molds is being shortened, and directed energy deposited type 3D printing technology is being considered as a way to extend the service life. In this study, in order to improve the service life of cold molds, the wear characteristics of the deposited parts using composition systems were analysed, and the possibility of practical application was estimated through evaluation with shear molds.Since the high hardness of AM layer can be reached without additional heat treatment, it was expected to improve the service life when applied to the surface of the mold. Through the wear evaluation of the ball-on-disk method, it was confirmed the wear performance improvement of M4, and as a result of the shear mold life evaluation of 1.5 GPa class high-strength automotive steel plate for the M4 deposited, it was found that shear up to 17,000 strokes were possible. When the number of strokes was increased, a fracture layer due to deposition was observed in the cross-section of the mold surface, and it is believed that additional heat treatment research is required to improve the life of the AM mold.","PeriodicalId":253691,"journal":{"name":"Journal of Welding and Joining","volume":"39 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Welding and Joining","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5781/jwj.2023.41.3.4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Recently, with the increase in the application of UHSS plates in automobiles, the service life of existing molds is being shortened, and directed energy deposited type 3D printing technology is being considered as a way to extend the service life. In this study, in order to improve the service life of cold molds, the wear characteristics of the deposited parts using composition systems were analysed, and the possibility of practical application was estimated through evaluation with shear molds.Since the high hardness of AM layer can be reached without additional heat treatment, it was expected to improve the service life when applied to the surface of the mold. Through the wear evaluation of the ball-on-disk method, it was confirmed the wear performance improvement of M4, and as a result of the shear mold life evaluation of 1.5 GPa class high-strength automotive steel plate for the M4 deposited, it was found that shear up to 17,000 strokes were possible. When the number of strokes was increased, a fracture layer due to deposition was observed in the cross-section of the mold surface, and it is believed that additional heat treatment research is required to improve the life of the AM mold.

查看原文本刊更多论文

定向能沉积增材制造高硬度工具钢的磨损性能

最近，随着超高压钢板在汽车上应用的增加，现有模具的使用寿命正在缩短，定向能沉积型3D打印技术被认为是延长使用寿命的一种方式。为了提高冷模的使用寿命，本研究分析了复合系统沉积零件的磨损特性，并通过剪切模具评估评估了实际应用的可能性。由于AM层无需额外热处理即可达到高硬度，因此应用于模具表面时有望提高使用寿命。通过球盘法的磨损评估，确认了M4的磨损性能得到改善，并对沉积的M4用1.5 GPa级高强度汽车钢板进行了剪切模具寿命评估，发现剪切冲程可达17000次。当冲程次数增加时，在模具表面横截面上观察到由于沉积而形成的断裂层，认为需要进一步的热处理研究来提高AM模具的寿命。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Welding and Joining

自引率

0.00%

发文量