scholarly journals The Influence of Cutting Edge Radius Size on the Tool Life of Cemented Carbide Drills

2018 ◽  
pp. 0421-0425
Author(s):  
Tomas Vopat ◽  
Marcel Kuruc ◽  
Vladimir Simna ◽  
Martin Necpal ◽  
Ivan Buransky ◽  
...  
Keyword(s):  
Tool Life ◽  
Cutting Edge ◽  
Cemented Carbide ◽  
Cutting Edge Radius ◽  
Edge Radius ◽  
Cemented Carbide Drills ◽  
Radius Size

scholarly journals The Tool Life and Coating-Substrate Adhesion of AlCrSiN-Coated Carbide Cutting Tools Prepared by LARC with Respect to the Edge Preparation and Surface Finishing

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 166 ◽  
Author(s):  
Tomáš Vopát ◽  
Martin Sahul ◽  
Marián Haršáni ◽  
Ondřej Vortel ◽  
Tomáš Zlámal
Keyword(s):  
Tool Life ◽  
Bias Voltage ◽  
Cutting Edge ◽  
Cemented Carbide ◽  
Surface Finishing ◽  
Cutting Edge Radius ◽  
Substrate Adhesion ◽  
Edge Radius ◽  
Coated Carbide ◽  
Edge Preparation

Nanocomposite AlCrSiN hard coatings were deposited on the cemented carbide substrates with a negative substrate bias voltage within the range of −80 to −120 V using the cathodic arc evaporation system. The effect of variation in the bias voltage on the coating-substrate adhesion and nanohardness was investigated. It was clear that if bias voltage increased, nanohardness increased in the range from −80 V to −120 V. The coating deposited at the bias voltage of −120 V had the highest nanohardness (37.7 ± 1.5 GPa). The samples were prepared by brushing and wet microblasting to finish a surface and prepare the required cutting edge radii for the tool life cutting tests and the coating adhesion observation. The indents after the static Mercedes indentation test were studied by scanning the electron microscope to evaluate the coating-substrate adhesion. The longer time of edge preparation with surface finishing led to a slight deterioration in the adhesion strength of the coating to the substrate. The tool wear of cemented carbide turning inserts was studied on the turning centre during the tool life cutting test. The tested workpiece material was austenitic stainless steel. The cemented carbide turning inserts with larger cutting edge radius were worn out faster during the machining. Meanwhile, the tool life increased when the cutting edge radius was smaller.

Development of Cutting Edge Radius Size of Solid Carbide Mills When Drag Finishing

2020 ◽  
pp. 95-100
Author(s):  
Boris Pätoprstý ◽  
Marek Vozár ◽  
Peter Pokorný ◽  
Tomáš Vopát ◽  
Ivan Buranský ◽  
...  
Keyword(s):  
Cutting Edge ◽  
Cutting Edge Radius ◽  
Edge Radius ◽  
Solid Carbide ◽  
Drag Finishing ◽  
Radius Size

Influence of cutting edge radius on tool life in milling inconel 718

2019 ◽  
Author(s):  
A. Celaya ◽  
O. Pereira ◽  
H. González ◽  
G. Gómez-Escudero ◽  
P. Fernández-Lucio ◽  
...  
Keyword(s):  
Tool Life ◽  
Inconel 718 ◽  
Cutting Edge ◽  
Cutting Edge Radius ◽  
Edge Radius

Research on ELID Grinding of Nano-Cemented Carbide Tool

2007 ◽  
Vol 329 ◽  
pp. 105-110 ◽  
Author(s):  
Fei Hu Zhang ◽  
J.C. Gui ◽  
Yi Zhi Liu ◽  
Hua Li Zhang
Keyword(s):  
Surface Quality ◽  
Cutting Edge ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
Cutting Edge Radius ◽  
Elid Grinding ◽  
Edge Radius ◽  
Cemented Carbide Tool ◽  
Grinding Technique ◽  
Cemented Carbide Tools

Nano-cemented carbide is a novel material, which is superior to common cemented carbide on physical and mechanical properties, such as high hardness, toughness, flexural strength and higher wear resisting property. It is proposed to have wide application prospect to tools and mould manufacturing. In this paper, ELID grinding technique is applied to grind nano-cemented carbide tools. And the ground surface quality, cutting edge radius, and machinability of nano-cemented carbide tools are studied, compared with common cemented carbide. It is demonstrated by experimental results that nano-cemented carbide has higher grinding surface quality with less surface flaw than that of common cemented carbide. The cutting edge radius of nano-cemented carbide tool is less than that of common cemented carbide tool. Under the same conditions, the tool life of nano-cemented carbide is 1~2 times longer than that of common cemented carbide. The research results indicate that ELID grinding technique is suitable for grinding cemented carbide tools. Nano-cemented carbide tools have better machinability than common cemented carbide tools.

Development and manufacturing of customized milling cutters for individual tool-making industry

2017 ◽  
Vol 1 (82) ◽  
pp. 26-32
Author(s):  
J. Kopač ◽  
F. Pušavec
Keyword(s):  
Tool Wear ◽  
Tool Life ◽  
End Milling ◽  
Tool Material ◽  
Rake Angle ◽  
Cutting Edge ◽  
Cutting Edge Radius ◽  
Edge Radius ◽  
Milling Tools ◽  
Material Cutting

Purpose: Purpose of this paper is to present results obtained during developing new cutting tools for individual tool industry. The aim of the research was to develop customized ball end milling tools with longer tool-life. Design/methodology/approach: to this study of development of new tools was over four successive sets of experiments, where the tool material, cutting edge preparation (cutting edge radius), rake angle and coating were selected for achieving longer tool-life. Tool-life was monitored over measuring tool wear on the flank face of the tool; maximum allowed tool wear was set to VB = 0.3 mm. Findings: of this study are showing that with right combination of the tool material, cutting edge radius, rake angle and appropriate coating, tool-life can be prolonged significant. Research (and practical) implications: implications are reflected in the substituting of all used milling tools from renowned manufacturers with these newly developed tools in this tool industry. Originality/value: of this paper is visible over significant improvement in tool-life of milling tools, especially for the company who will be using these tools in their production.

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