Results 141 to 150 of about 1,997 (188)

Finish turning of hardened bearing steel using textured PcBN tools

Journal of Manufacturing Processes, 2020
Abstract Texturing on tools is thought to improve cutting performance by increasing tool life and reducing process forces by reducing friction between the tool and the chip, and in between the tool and the machined surface. This paper tests this hypothesis for finish turning of a hardened bearing steel using twelve differently textured PcBN tools. Of
M. Law, R. Karthik, S. Sharma, J. Ramkumar   +3 more
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Hard Turning with PCBN Tooling

1999
Material removal, at economic rates, from hardened workpieces has always presented a challenge and, until quite recently, abrasive machining processes were the only option for hard-facings. However, cutting tools based on polycrystalline cubic boron nitride (PCBN) have opened up the possibility of turning and milling as attractive alternatives for ...
E. J. Brookes, R. D. James, X. Ren
openaire   +1 more source

Performance Investigation for Precision Mold Turning by PCBN Tool

Advanced Materials Research, 2009
In order to ascertain the superior characteristics of PCBN tool for hardened material machining, to promote the cutting performance and efficiency of a mold manufacturing, to investigate the wear mechanism of the cutting tool, and to investigate the dimensional accuracy and surface finish of the machined molds, SKD11 die steel and the polycrystalline ...
Shen Yung Lin, C.C. Tang, J.C. Shih, S.S. Chi   +3 more
openaire   +1 more source

Wear and tool life of tungsten carbide, PCBN and PCD cutting tools

International Journal of Machine Tools and Manufacture, 2006
The wear mechanisms of cutting tools made of tungsten-carbide (WC), PCBN and PCD were investigated using the tool life and temperature results available in the literature. For tool/work combinations WC/steel and PCBN/hardened-steel, under practical conditions, tool wear was found to be greatly influenced by the temperature.
J.A. Arsecularatne, L.C. Zhang, C. Montross   +2 more
openaire   +1 more source

Hard turning of GCr15 steel with chamfered PCBN tools

International Journal of Manufacturing Research, 2013
This work investigates the cutting performance of chamfered PCBN tools in hard turning of GCr15 bearing steel. Experimental study was performed on a NC lathe. Cutting forces were measured by using a dynamometer. Cutting temperature was measured by using an infrared thermal imager. The variation of cutting forces and cutting temperature with the chamfer
Tao Chen, Xianli Liu, Suyan Li
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Wear model in turning of hardened steel with PCBN tool

International Journal of Refractory Metals and Hard Materials, 2014
Abstract In this study a mathematical–computational model of tool wear of PCBN (polycrystalline cubic boron nitride) was developed in turning of quenched and tempered AISI D6 steel (57 HRC) using experimental planning and statistic techniques. On the experimental trials many parameters are important such as: surface roughness, cutting force and tool ...
José C. Camargo, Dany Sanchez Dominguez, Emmanuel O. Ezugwu, Álisson R. Machado   +3 more
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Cutting temperatures in hard turning chromium hardfacings with PCBN tooling

Journal of Materials Processing Technology, 2004
Abstract Hard turning of high chromium hardfacing materials is a new application field for PCBN tools. An investigation of the cutting temperature is essential in understanding the machining mechanism of the material, thus to improve the process efficiency.
X.J Ren, Q.X Yang, R.D James, L Wang
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Optimizing PCBN cutting tool performance in hard turning

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2008
Surface finish, in addition to tool wear, is an important aspect of PCBN tool performance in hard turning. A set of experiments that focused on the effects of corner radius, chamfer angle/width, and edge radius in addition to severity of interruption and speed/feed at constant depth of cut were performed.
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Machining Abrasion-Resistant Hard-Facings with Pcbn Tools

2002
Iron-based hard-facings are a popular choice for abrasion resistant materials in industries as diverse as mining and food processing. Alloys forming chromium carbides dispersed in a relatively soft matrix are particularly effective because these carbides are usually present as relatively large micro-constituents, which present large surface areas to ...
E. J. Brookes, R. D. James, C. Shutt, C. J. Taylor   +3 more
openaire   +1 more source

PCBN tool wear modes and mechanisms in finish hard turning

Robotics and Computer-Integrated Manufacturing, 2007
The use of polycrystalline cubic boron nitride (PCBN) cutting tools in hard turning applications is continuously growing with the number of commercially available grades increasing, allowing new application areas to be explored. In order to take full advantage of the benefits offered by PCBN it is necessary to understand the behaviour of the material ...
Cora Lahiff, Seamus Gordon, Pat Phelan
openaire   +1 more source