Abrasive wear in punching pin with cryogenic treatment for GPa-grade steels
- Title
- Abrasive wear in punching pin with cryogenic treatment for GPa-grade steels
- Author
- 윤종헌
- Keywords
- Cryogenic treatment; Abrasive wear; GPa-grade steel; DP980; Archard model; Punching pin; FINITE-ELEMENT-ANALYSIS; DUAL-PHASE STEELS; TOOL WEAR; PREDICTION; SPRINGBACK; CLEARANCE; EVOLUTION; GEOMETRY; CONTACT; FAILURE
- Issue Date
- 2018-09
- Publisher
- KOREAN SOC PRECISION ENG
- Citation
- INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, v. 19, No. 8, Page. 1179-1186
- Abstract
- The increasing application of GPa-grade steel to autobody panels has led to increasing problems related to abrasive wear in mold and tool surfaces, which dramatically degrades tool life and also degrades the surface finish of the final product. This paper mainly concerns the punching wear resistance imparted by cryogenic (CR) and quenching and tempering (QT) treatments, as well as the additional use of a TiN coating layer. This is investigated using pin-on-disk tests and punching experiments against DP980 sheets for up to 90,000 cycles. The wear coefficient of CR is about 10% greater than that of QT, which leads to a decelerated punching pin wear rate relative to QT starting at around the 70,000th cycle. To numerically predict abrasive wear, we newly propose that the wear coefficients of the substrate should be updated as a function of the clearance stage to improve the accuracy and efficiency of the wear analysis.
- URI
- https://link.springer.com/article/10.1007/s12541-018-0139-3https://repository.hanyang.ac.kr/handle/20.500.11754/81382
- ISSN
- 2234-7593
- DOI
- 10.1007/s12541-018-0139-3
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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