The Tool Life Analysis of Ceramic Turning Tools Under the Cumulative Action of Different Cutting Speeds

2008 ◽  
pp. 441-450
Author(s):  
Wei-Shin Lin
Keyword(s):  
Tool Life ◽  
Life Analysis ◽  
Cutting Speeds

scholarly journals Investigation into Performance of Multilayer Composite Nano-Structured Cr-CrN-(Cr0.35Ti0.40Al0.25)N Coating for Metal Cutting Tools

Coatings ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 447 ◽  
Author(s):  
Sergey Grigoriev ◽  
Alexey Vereschaka ◽  
Alexander Metel ◽  
Nikolay Sitnikov ◽  
Filipp Milovich ◽  
...  
Keyword(s):  
Tool Life ◽  
Metal Cutting ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Constructional Steel ◽  
Wear Process ◽  
Layered Architecture ◽  
Process Pattern ◽  
Resistant Layer ◽  
Cutting Speeds

This paper deals with the Cr-CrN-(Cr0.35Ti0.40Al0.25)N coating. It has a three-layered architecture with a nano-structured wear-resistant layer. The studies involved the investigation into the microstructure (with the use of SEM and TEM), elemental and phase composition (XRD and SAED patterns), wear process pattern in scratch testing, crystal structure, as well as the microhardness of the coating. Cutting tests of tools with the above coating were carried out in dry turning of steel 1045 at cutting speeds of vc = 200, 250, and 300 m·min−1. The comparison included uncoated tools and tools with the commercial TiN and (Ti,Al)N coatings with the same thickness. The tool with the Cr-CrN-(Cr0.35Ti0.40Al0.25)N coating showed the longest tool life at all the cutting speeds under consideration. Meanwhile, a tool with the coating under study can be recommended for use in turning constructional steel at the cutting speed of vc = 250 m·min−1. At this cutting speed, a tool shows the combination of a rather long tool life and balanced wear process, without any threat of catastrophic wear.

Study of the Tool Life and the Tool Wear Mechanisms in the Production of Holes in Stainless Steel

2013 ◽  
Vol 459 ◽  
pp. 424-427 ◽  
Author(s):  
Jozef Jurko ◽  
Anton Panda
Keyword(s):  
Stainless Steel ◽  
Tool Wear ◽  
Tool Life ◽  
Stainless Steels ◽  
Feed Rate ◽  
Wear Mechanisms ◽  
Theory And Practice ◽  
Tool Wear Mechanisms ◽  
Cutting Speeds

The content of this article also focuses on the analysis of the tool life of screw drills. This paper presents the conclusions of tests on a stainless steel DIN 1.4301.The results of the article are conclusions for working theory and practice for drilling of stainless steels. Based on the cutting tests, cutting speeds of 30 to 60 m/min, feed rate of 0.04to0.1 mm and screw drill carbide monolite.

The Effect of Grain Size and Cobalt Content on the Wear of Ultrafine Cemented Carbide Tools

2014 ◽  
Vol 875-877 ◽  
pp. 1344-1351
Author(s):  
Jian Bing Cheng ◽  
Si Qin Pang ◽  
Xi Bin Wang ◽  
Xi Bin Wang ◽  
Chen Guang Lin
Keyword(s):  
Grain Size ◽  
Tool Wear ◽  
Tool Life ◽  
Wear Mechanism ◽  
Wear Mechanisms ◽  
High Strength Steels ◽  
Cobalt Content ◽  
Cemented Carbide ◽  
Cemented Carbide Tools ◽  
Cutting Speeds

This work contributes to a better understanding of wear mechanisms of ultrafine cemented carbide cutting tools used in turning operation of superalloy and high strength steels at high cutting speeds. The main objective of this work is to verify the influence of grain size and the cobalt content of ultrafine cemented carbide tools on tool life and tool wear mechanism. The main conclusions are that grain size and the cobalt content of ultrafine cemented carbide tools strongly influence tool life and tool wear involve different mechanisms. The wear mechanisms of different grain size and the cobalt content of ultrafine cemented carbide tools observed on the rake face at these conditions were adhesion and notch, at the end of tool life, adhesion was the main wear mechanism at higher cutting speeds.

scholarly journals Analysis of the General Tool Life Function of Cutting Tools by Application of the Catastrophe-Theory

2021 ◽  
Author(s):  
Zoltán Pálmai ◽  
János Kundrák ◽  
Csaba Felhő
Keyword(s):  
Tool Life ◽  
Catastrophe Theory ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Taylor Formula ◽  
Technology Planning ◽  
Concave Part ◽  
Cutting Speeds ◽  
General Tool ◽  
Life Function

Abstract Production technology planning requires information on tool life T and its relation to cutting speed v. As the Taylor formula often cannot be linearized on an lg-lg scale, a general tool life function has been developed for describing a v-T function with a convex-concave part. Using catastrophe theory, an analogy is established between the general tool life function and the cusp catastrophe, allowing topological mapping of the general v-T function. Results were verified by machinability tests in the turning of C35 and C60 conventional and specially deoxidized C-steels during steelmaking. It was found that in the convex-concave section of this function, 2–3 cutting speeds can be selected for a given tool life, which is advantageous for harmonizing tool changes in multi-operation technology.

PANTHER 5

Alloy Digest ◽  
1976 ◽  
Vol 25 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
Tool Life ◽  
High Speed ◽  
High Speed Steel ◽  
Heat Treating ◽  
Maximum Hardness ◽  
High Carbon ◽  
Red Hardness ◽  
Cutting Speeds

Abstract Panther 5 is a 5% cobalt, high-carbon, high-vanadium, tungsten high-speed steel. Because of its excellent red hardness, higher cutting speeds can be used with Panther 5 than with the regular high-speed steels. Heat treating Panther 5 to its maximum hardness will provide long tool life. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-301. Producer or source: Allegheny Ludlum Corporation.

Effect of Stiffness on Tool Wear and New Tool Life Equation

1975 ◽  
Vol 97 (3) ◽  
pp. 939-944 ◽  
Author(s):  
E. Kuljanic´
Keyword(s):  
Statistical Analysis ◽  
Tool Life ◽  
Dynamic Stiffness ◽  
Cutting Speed ◽  
Testing Method ◽  
Number Of Teeth ◽  
Pulse Testing ◽  
Machining System ◽  
Cutting Speeds ◽  
Significant Factors

An investigation of the effect of stiffness of the machining system on tool life with different numbers of teeth in the cutter, cutting speeds, and feeds is described. A statistical analysis was used and the effects of significant factors and interactions were determined. Not only the cutting speed, feed, and number of teeth in the cutter, but also the stiffness and their interactions have a significant effect on tool life. Due to a significant effect of interactions, the effect of the stiffness of machining system depends on the number of teeth in the cutter, cutting speed and feed. A new tool life equation was developed to take this phenomenon in account. The tool life decreases with increasing the number of teeth in the cutter. The static and dynamic stiffness was measured by means of a pulse-testing method which is both simple and reliable in determining the dynamic characteristics of a machining system.

Fatigue in cold-forging dies: tool life analysis

1999 ◽  
Vol 95 (1-3) ◽  
pp. 40-48 ◽  
Author(s):  
Peder Skov-Hansen ◽  
Niels Bay ◽  
Jens Grønbæk ◽  
Povl Brøndsted
Keyword(s):  
Tool Life ◽  
Cold Forging ◽  
Life Analysis

scholarly journals Influence of the Thickness of Multilayer Composite Nano-Structured Coating Ti–TiN–(Ti,Al,Si)N on the Tool Life of Metal-Cutting Tools and the Nature of Wear

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 730 ◽  
Author(s):  
Alexey Vereschaka ◽  
Sergey Grigoriev ◽  
Nikolay Sitnikov ◽  
Anatoliy Aksenenko ◽  
Filipp Milovich ◽  
...  
Keyword(s):  
Tool Life ◽  
Metal Cutting ◽  
Cutting Tools ◽  
Multilayer Composite ◽  
Scratch Testing ◽  
Wear Resistant ◽  
And Performance ◽  
Resistant Layer ◽  
Carbide Inserts ◽  
Cutting Speeds

This article discusses the influence of the thickness of a nano-structured wear-resistant layer of the Ti–TiN–(Ti,Al,Si)N multilayer composite coating on its mechanical and performance properties. The study was focused on the coatings with the following thicknesses of its wear-resistant layers: 2, 3.5, 5, 7, 11, and 15 μm. The relation between the thickness of a wear-resistant layer and the time of its deposition was investigated, and the effect of the above thickness on hardness and wear resistance in scratch testing was considered. Cutting tests were conducted in turning steel C45 with carbide inserts with the coatings under study at various cutting speeds (vc = 250, 300 and 350 m/min). The study found the value of thickness of wear-resistant layer providing the longest tool life at various cutting speeds. The differences in the nature of wear for the coatings with various thicknesses of wear-resistant layers were considered.

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