Results 151 to 160 of about 1,997 (188)

Wear Behavior of PCBN Tool in High Speed Turning TC4

Advanced Materials Research, 2012
PCBN tools were used for the turning of TC4. The cutting behavior and wear mechanisms were examined by means of the microscope, SEM and EDS analyses. The results have shown that ,the forms of the tool wear are mainly the rake face wear, flank wear, tip damage ,flaking and tipping; while the wear mechanism are mainly adhesion wear ,diffusion wear ...
Hai Dong Yang, N. Liu, Z. Ding, Z.G. Zhu, C.G. Zhang   +4 more
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Experiments on High-Speed and Dry Cutting with PCBN Tool

Key Engineering Materials, 2010
This paper deals with the High-speed Hard and Dry Cutting mechanism of hardened alloy-steel with PCBN tool: the cutting speed and workpieces temperature and tool wear are being discussed in different cutting speeds when cutting alloy-steel 42CrMo. After the workpiece temperature measured by ThermaVision, it is proved that the workpiece temperature was ...
Hai Dong Yang, Zhen Hua Qing, Feng Xie, Chong Gao Zhang   +3 more
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Effect of chamfer angle on wear of PCBN cutting tool

International Journal of Machine Tools and Manufacture, 2003
In precision hard turning, a remaining problem is to minimise tool wear to maintain the accuracy of geometry and surface finish. Tool wear not only directly reduces the part geometry accuracy but also increases cutting forces drastically. The change in the cutting forces also causes instability in the tool motion, which results in more inaccuracy. PCBN
J.M Zhou, H Walter, M Andersson, J.E Stahl   +3 more
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Reducing Fracture Tendencies in PCBN FSW Tools

2009
Abstract : The overall goal of this program is to increase the life of PCBN tools in friction-stir welding of high temperature metals. This will be achieved through the following objectives: (1) Understand the fundamental causes for limited lifetimes of PCBN tools during Friction-Stir Welding (FSW) of high temperature metals, including both wear and ...
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Machinability of Abrasion Resistance Cast Iron with PCBN Cutting Tools

Materials and Manufacturing Processes, 2008
Highly abrasion and erosive resistance materials are an important group of materials and has very wide applications in many industrial areas. The characteristic properties for this material include the castability and the superior wear resistance. The material, however, is in the group of hard-to-machine materials due to its abrasion to cutting tool ...
J. M. Zhou, M. Andersson
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PCBN Tool Wear Mechanism in Hard Turning Hardened Bearing Steel

Key Engineering Materials, 2006
The wear pattern and mechanism during continuous hard turning GCr15 hardened bearing steel with BZN8200 PCBN cutting tool was studied. Experimental results showed that the main wear pattern is crater wear in rake face and mechanical wear in flank face, the main wear mechanism is made-up with adhesive, oxidization and diffusive wear.
S.J. Dai, Dong Hui Wen, Ju Long Yuan
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Diffusion and oxidation wear of PCBN tool based on thermodynamics

Journal of Wuhan University of Technology-Mater. Sci. Ed., 2010
The rules of diffusion wear and oxidation wear for PCBN cutting tools were analyzed based on thermodynamics theory. Dissolution concentrations in typical normal workpice materials of PCBN tool material at different temperature were then calculated. Diffusion reaction rules in high temperature were developed and analyzed using the Gibbs free energy ...
Fang Shao, Zhanqiang Liu, Yi Wan
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On machining of hardened AISI D2 steel with PCBN tools

Journal of Materials Processing Technology, 2006
Abstract This paper describes an experimental investigation on machining of a difficult-to-cut material, AISI D2 steel of hardness 62 HRC with PCBN tools. It was found that the most feasible feeds and speeds fall in the ranges 0.08–0.20 mm/rev and 70–120 m/min, respectively and that most of the tested PCBN tools reached the end of life mainly due to ...
J.A. Arsecularatne, L.C. Zhang, C. Montross, P. Mathew   +3 more
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Experimental study on hard turning hardened GCr15 steel with PCBN tool

Journal of Materials Processing Technology, 2002
Abstract This paper discusses experimental results of turning experiments on GCr15 bearing steel hardened to 60–64 HRC. The objective was to determine the effect of the cutting parameters on cutting force, chip morphology and resultant workpiece surface quality, more specifically surface texture, microstructural alterations, changes in microhardness ...
X.L Liu, D.H Wen, Z.J Li, L Xiao, F.G Yan   +4 more
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Research of PCBN Tool Wear Mechanism in Turning Ni-Based Superalloy

Advanced Materials Research, 2013
This paper mainly focus on the researches of tool wear mechanisms in turning Ni-based superalloy GH706 with PCBN insert. First, the process of flank face wear and rake face wear are studied by observing the pictures of tool wear. There are notch wear and flank wear on the flank face, and there are built-up-edge and micro-chipping on the rake face ...
Wei Ji, Xian Li Liu, Han Yang Li, Hai Yan You, Meng Chao Fan   +4 more
openaire   +1 more source