A Study on Driven-Type Rotary Cutting for Finish Turning of Carburized Hardened Steel
- 1 November 2012
- journal article
- Published by Trans Tech Publications, Ltd. in Key Engineering Materials
- Vol. 523-524, 250-255
- https://doi.org/10.4028/www.scientific.net/kem.523-524.250
Abstract
Recently, cutting has replaced grinding in the finish processing of hardened steel. However, tool damage is a major problem in high-efficiency operations that use high-speed cutting and high feed rate conditions instead of the present cutting conditions. Therefore, the examination of a new cutting technique that can realize high-efficiency cutting is desired. In this study, the effects and efficiency of driven rotary cutting are investigated in the finish turning of carburized hardened steel. Based on the results, flaking occurs at the cutting edge at a short cutting length of 0.2 km using single-point turning. On the other hand, even if the cutting length amounts to 1.5 km, the tool wear width without flaking is small in the case of a driven rotary tool. Additionally, the tool wear is uniformly distributed along the circumference of the cutting edge. Furthermore, based on an examination of high-efficiency processing by increasing the feed rate, it is clarified that a feed rate of 0.3 mm/rev is the optimum condition from the viewpoint of wear resistance and surface roughness. Additionally, even if the cutting length amounts to 5.0 km for this condition, the flank wear width is as small as 0.04 mm, and the tool wear progresses gradually.This publication has 9 references indexed in Scilit:
- B29 Thermal Behavior and Chip Formation on Rotary Cutting of Difficult-to-cut Materials Utilizing Multi Tasking Lathe and MQL(Advanced machining technology)Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21, 2009
- High Speed Cutting of Super Heat Resisting Alloy Inconel 718. On the Finish Cutting with High Pressurized Cutting Fluid.Journal of the Japan Society for Precision Engineering, 2000
- More Efficient Cutting Difficult-to-Machine Materials by Rotary Tool.Journal of the Japan Society for Precision Engineering, 2000
- Wear Mechanism of cBN Tool in Cutting of Hardened Steel.Journal of the Japan Society for Precision Engineering, 1995
- Optimum cutting tool geometry when interrupted cutting carburized steel by CBN toolInternational Journal of Machine Tools and Manufacture, 1989
- Optimum tool geometry of CBN tool for continuous turning of carburized steelInternational Journal of Machine Tools and Manufacture, 1989
- Cutting force characteristics in finish machining of hardened steel.Journal of the Japan Society for Precision Engineering, 1988
- On the Formation of “Saw-toothed Chip” in Metal CuttingJournal of the Japan Society of Precision Engineering, 1977
- Grinding Characteristics of Hardened SteelJournal of the Japan Society of Precision Engineering, 1975