Author:
Goto Akihiro, ,Chen Junda,Shirai Kosuke
Abstract
Herein, a new milling method via an electrochemical reaction is proposed to realize the high-speed machining of sintered carbide. In this method, cobalt (Co) on the surface of the sintered carbide is eluted via an electrochemical reaction, and the sintered carbide weakened by the elution of Co is scraped off with an insulating cutting edge. Results show that the cutting resistance is significantly reduced by the electrochemical reaction. However, under the conditions of a previous machining experiment, the amount of removal was low, and the machining test was conducted within a range that did not reflect the high-speed machining of sintered carbide. In this study, the conditions required to realize the high-speed machining of sintered carbide using the abovementioned method are examined. To increase the speed of electrolysis, the facing area between the tool and workpiece must be increased, and the current used for electrolysis must be increased as well. It is shown that the electrolytic current can be increased by performing machining with a large depth of cut. Consequently, the machining speed can be increased compared with that for the case without electrolysis, although a few problems remain.
Funder
Osawa Scientific Studies Grants Foundation
Publisher
Fuji Technology Press Ltd.
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering
Reference20 articles.
1. M. Fukui and K. Fujimoto, “Suitable for cemented carbide mold milling plan,” Die and Mould Technology, Vol.31, No.8, pp. 2-3, 2016 (in Japanese).
2. H. Shimada, K. Yano, and Y. Kanada, “Sumidia Binderless Ball-Nose Endmills ‘NPDB’ for Direct Milling of Cemented Carbide,” SEI Technical Review, No.185, pp. 89-93, 2014 (in Japanese).
3. H. Suwa, S. Sakamoto, M. Nagata, K. Tezuka, and T. Samukawa, “Applicability of Diamond-Coated Tools for Ball End Milling of Sintered Tungsten Carbide,” Int. J. Automation Technol., Vol.14, No.1, pp. 18-25, 2020.
4. M. Okada, R. Suzuki, H. Watanabe, M. Otsu, and T. Miura, “Cutting Characteristics of Direct Milling of Cemented Tungsten Carbides Using Diamond-Coated Carbide End Mills with Untreated and Treated Cutting Edge,” Int. J. Automation Technol., Vol.13, No.1, pp. 58-66, 2019.
5. J. Fujiwara, K. Wakao, and T. Miyamoto, “Influence of Tungsten-Carbide and Cobalt on Tool Wear in Cutting of Cemented Carbides with Polycrystalline Diamond Tool,” Int. J. Automation Technol., Vol.7, No.4, pp. 433-438, 2013.
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