Prediction Technique of damage and fracture of cold forging tools by Acoustic Emission

Research Project

Project/Area Number	22560718
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Material processing/treatments
Research Institution	Shizuoka University
Principal Investigator	HAYAKAWA Kunio 静岡大学, 工学部, 准教授 (80283399)
Co-Investigator(Renkei-kenkyūsha)	KUBOTA Yoshihiro 静岡大学, 工学部, 産学連携研究員
Project Period (FY)	2010 – 2012
Project Status	Completed (Fiscal Year 2012)
Budget Amount *help	¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000) Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000) Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000) Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords	塑性加工 / アコースティック・エミッション / 鍛造 / 工具材料 / 硬質被膜 / スクラッチ試験 / AE / 工具 / 損傷 / 非破壊評価
Research Abstract	Technique for detection of damage to and fracture of cold forging tools during forging process by AE technology is developed in the present study. The fractal property of AE amplitude is employed for detecting the damage and fracture of tools. Computer programs for acquisition of AE and continuously and simultaneously calculation of the fractal dimension of acquired AE amplitude are first developed. Then, a proper data processing method for more precise prediction of fracture of tools is proposed.

Report

(4 results)