Evaluation of tribological conditions and product defects using ultrasonic measurement in metal forming of hard-to-work materials

2015 Fiscal Year Final Research Report

• Project/Area Number: 24560139
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Production engineering/Processing studies
• Research Institution: Kumamoto University
• Principal Investigator: Marumo YAsuo 熊本大学, 自然科学研究科, 教授 (90199927)
• Co-Investigator(Kenkyū-buntansha): HARADA Hiroshi 熊本大学, 大学院自然科学研究科, 教授 (90145285) ; RUAN Liqun 熊本大学, 先進マグネシウム国際研究センター, 教授 (30244106)
• Co-Investigator(Renkei-kenkyūsha): SAKATA Yutaka 西日本工業大学, 工学部, 教授 (40441729) ; NONAKA Tomohiro 西日本工業大学, 工学部, 教授 (80416510)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 成形加工 / トライボ条件 / 欠陥評価 / 超音波計測 / センサー / 加工特性

Outline of Final Research Achievements

In press forming, ultrasonic measurement was applied to the detecting of product defects and the evaluation of tribological conditions in the contact interface between the tool and workpiece. A main defect, i.e., wrinkling was estimated during the press operation. The ultrasonic reflection was influenced by wrinkling. The tribological conditions were evaluated using the ultrasonic measurement based on presented contact models. Obtained results are useful for the sophistication of the in-process inspection of defects and the advancement of in-process measurement of tribological conditions.

Free Research Field

成形加工学