Title: Grinding characteristics of mould steel with micro 3D structure in ultrasonically assisted precision grinding

Authors: Masakazu Fujimoto; Yongbo Wu; Hidenari Kanai; Masahiko Jin

Addresses: Akita Prefectural University, 84-4 Tsuchiya-Ebinokuchi, Yurihonjo, Akita 015-0055, Japan ' Akita Prefectural University, 84-4 Tsuchiya-Ebinokuchi, Yurihonjo, Akita 015-0055, Japan ' Industira Co., Ltd., 2700 Miyadera, Iruma, Saitama 358-0014, Japan ' Nippon Institute of Technology, 4-1 Gakuendai, Miyashiromachi, Minamisaitama, Saitama 345-8501, Japan

Abstract: This study aims to develop a high precision machining method for difficult-to-machine materials with micro 3D structure. For this purpose, ultrasonically assisted on-surface grinding technique has been proposed and experimental investigations involving difficult-to-machine material workpiece with micro strait ribs of several hundreds µm in width have been carried out using metal bonded diamond wheels. As a result, manufacturing of mirror surface on micro 3D structure can be achieved easily and the grinding forces are decreased by ultrasonically assisted grinding. Additionally, the correlation of the grinding characteristics and with the wheel surface topography during grinding process has also been demonstrated. The obtained results indicate the ultrasonically assisted grinding is extremely effective for high precision machining of difficult-to-machine materials with micro 3D structure.

Keywords: ultrasonically assisted grinding; micro 3D structure; wheel surface topography; difficult-to-machine materials; microstructure; mould steel; precision grinding; grinding forces; high precision machining.

DOI: 10.1504/IJNM.2013.055150

International Journal of Nanomanufacturing, 2013 Vol.9 No.2, pp.201 - 210

Received: 19 Oct 2012
Accepted: 04 Feb 2013
Published online: 31 Mar 2014 *

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