Energy-based Beta Peak Extraction from Dynamic Resistance Curves

Author:

Ku JaHunORCID,Park Youngdo,Ku NamkugORCID

Abstract

Recently, the importance of welding monitoring is emerging, and in particular, many studies using characteristic values of dynamic resistance curves are being conducted. Among the characteristic values, β-peak, peak on the dynamic resistance curve, contains important information on the extent to which the nugget grows. A common way to extract the β-peak is to determine the local maximum point followed by the local minimum point in the dynamic resistance curve. However, for dynamic resistance curves where local extremum values are unclear, extracting the β-peak in this manner is difficult. Therefore, in this study, a method using heating energy for β-peak extraction was proposed. Heating energy is the energy used until the β-peak is reached. Typically heating energy does not significantly differ even if the welding conditions differ for the same material. Based on the results, the β-peak of the dynamic resistance curve without the clear peak was extracted, and 11 characteristic values were calculated. Among them, three values that had a high correlation with the nugget diameter were selected. Using these values, the nugget diameter was predicted through linear regression analysis.

Funder

Ministry of Education

National Research Foundation of Korea

Ministry of Science and ICT

Institute for Information & communication Technology Planning & evaluation

Publisher

The Korean Welding and Joining Society

Subject

General Medicine

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3