Experimental Study on the Cutting Performance of Cemented Carbide Rods Made by New Process

2011 ◽  
Vol 175 ◽  
pp. 316-320
Author(s):  
Gao Chao Wu
Keyword(s):  
Experimental Study ◽  
Cutting Tools ◽  
Cutting Performance ◽  
Cemented Carbide ◽  
Coated Tools ◽  
New Process

Cemented carbide rods, which are mostly made by powder extrusion molding, are workblank for various cutting tools. In this paper, new cemented carbide rods, namely GU20, were made by new optimized process, and were manufactured into uncoated and coated cutting tools to evaluate their cutting performance. Experiment results showed that the uncoated and coated tools made of the new cemented carbide rods had better cutting performance than those made of the old rods made by old process.

Performance of γ-Al2O3-Based Coatings and Environmentally Friendly Lubricants in Cutting Operations of Difficult-to-Machine Materials

2010 ◽  
Vol 438 ◽  
pp. 203-209 ◽  
Author(s):  
Fritz Klocke ◽  
Susanne Eva Cordes ◽  
Klaus Gerschwiler
Keyword(s):  
Removal Rate ◽  
Cutting Tools ◽  
Aluminium Oxide ◽  
High Hardness ◽  
Cutting Performance ◽  
Austenitic Steels ◽  
Oxide Coatings ◽  
Coated Tools ◽  
Milling Operations ◽  
Long Time

The machining of difficult-to-cut materials such as nickel-based alloys and austenitic steels are focus in a lot of investigations for a long time. When machining these materials, different effects are overlapping. Approaches to overcome the several problems when machining these materials can be an appropriate coating system for the cutting tool as well as innovative lubricants. Coatings are one of the most common possibilities to improve the cutting performance of tools, notably the tool life as well as the material removal rate. Aluminium oxide coatings made by Physical Vapour Deposition (PVD) technology is a promising coating material for cutting operations. Due to its outstanding characteristics, such as high hardness, high thermal stability and low tendency to adhesion aluminium oxide is a predestined material for the machining of difficult-to-cut materials. In combination with innovative environmental friendly lubricants, the performance of cutting tools is increasing significantly. The objective of this work is to study the wear mechanisms and the cutting performance of aluminium oxide based coated tools in turning, drilling and milling operations.

The Evaluation of Tool Wears in Machining of SiCp/Al Composites

2013 ◽  
Vol 764 ◽  
pp. 61-64
Author(s):  
Yang Jun Wang ◽  
Tao Chen ◽  
Ming Qiang Pan ◽  
Ji Zhu Liu ◽  
Li Guo Chen ◽  
...  
Keyword(s):  
Experimental Study ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Flank Wear ◽  
Adhesive Wear ◽  
Cutting Tools ◽  
Optical Microscope ◽  
Coated Tools ◽  
Wear Mode ◽  
Scanning Electron

In this paper an experimental study in milling of SiCp/Al composites on a high precision machine was carried out by using TiN coated tools, TiAlN coated tools and carbide tools. The result of tool wear was observed and measured by an optical microscope and a scanning electron microscope (SEM). The results show that the main wear mode is the flank wear and the wear mechanism is abrasive wear and adhesive wear for the cutting tools used in the experiment.

scholarly journals Effect of Hybrid Texture on Cutting Performance of WC/Co-based Coated Tools Turning Aluminum Alloy

2021 ◽  
Author(s):  
Yonghong Fu ◽  
Yun Zhou ◽  
Zetan Yang ◽  
Jie Yang
Keyword(s):  
Aluminum Alloy ◽  
Physical Vapor Deposition ◽  
Cutting Tools ◽  
Chip Morphology ◽  
Hard Coatings ◽  
Cutting Performance ◽  
Properties Of Coatings ◽  
Micro Scale ◽  
Coated Tools ◽  
Coated Tool

Abstract When cutting aluminum alloy with WC/Co coated tools, severe adhesion and wear exist on the tool-chip contact interface, which are the major factors leading to failure of cutting tools. To address this problem and extend service life of cutting tools, this study introduced surface textures into coated tools, trying to integrate the anti-friction properties of micro-textures with the wear resistance properties of coatings to improve tribological characteristics of tools surface. Firstly, hybrid texture consisting of micro-scale pits and micro-scale grooves were fabricated on the rake surface close to the main cutting edge of carbide tools by picosecond laser. Subsequently, the textured tools were deposited with hard-coatings CrAlN via physical vapor deposition (PVD) technology and the hybrid textured CrAlN coated tool (MPG-T) was obtained eventually. Other texture combinations included micro-scale pits and micro-scale grooves distributed in the tool-chip contact zone. Wet cutting experiments were carried out on these prepared tools. Results showed that compared with micro-scale pitted coated tool (MP-T), micro-scale grooved (MG-T) and conventional coated tool (CCT), MPG-T tool performed better in cutting forces, friction coefficient, tool adhesion and wear on the rake face and the flank face, chip morphology. Moreover, the corresponding synergistic mechanisms of hybrid texture and coatings were proposed. It’s suggested that applying the results to actual industries can enhance the cutting performance of coated tools in machining of aluminum alloy.

Research on the Cutting Performance of ZrN Coated Tools

2011 ◽  
Vol 228-229 ◽  
pp. 1089-1093
Author(s):  
Jian Hua Liu ◽  
Yi Hua Feng ◽  
Lei Shi ◽  
Qing Yu Zhang
Keyword(s):  
Abrasive Wear ◽  
Flank Wear ◽  
High Hardness ◽  
Cutting Performance ◽  
Cemented Carbide ◽  
Good Adhesion ◽  
Ion Plating ◽  
Fundamental Properties ◽  
Coated Tools ◽  
Hardness Increase

Arc ion plating technique PVD ZrN coatings were deposited on YT15 cemented carbide. Microstructural and fundamental properties of the ZrN coatings were examined. The ZrN coated tools (DZ and GZZ) showed much better cutting performance compared to the YT15 uncoated cemented carbide, which is connected with their large hardness increase, and good abrasive wear resistance. The wear surface features of the coatings were examined by scanning electron microscopy. Results showed that the PVD ZrN coatings onto the cemented carbide substrate show high hardness and good adhesion with the substrate. Abrasive wear was found to be the predominant flank wear mechanism for the ZrN coated tools. While the mechanisms responsible for the rake wear were determined to be adhesion.

Experimental Study on the Cutting Temperature with Micro-Texturing Self-Lubricated Tools

2011 ◽  
Vol 291-294 ◽  
pp. 715-720
Author(s):  
Ze Wu ◽  
Jian Xin Deng ◽  
Yun Song Lian ◽  
Zhi Jun Wang ◽  
Jun Zhao
Keyword(s):  
Experimental Study ◽  
Cutting Tools ◽  
Cutting Temperature ◽  
Hardened Steel ◽  
Cemented Carbide ◽  
Dry Cutting ◽  
Cemented Carbide Tools

Micro-texturing self-lubricated cutting tools named MTR-1 and MTR-3 were designed and made based on micro-texturing lubricating idea and laser micro-texturing technology. Dry cutting tests on 45# hardened steel were carried out with these self-lubricated cutting tools and conventional cemented carbide tools named MT0. The cutting temperatures and the morphology of chips were measured. The results indicated that the cutting temperatures with the micro-texturing self-lubricated cutting tools were reduced compared with that of MT0 cemented carbide tools, and the chip coiling was improved.

scholarly journals Study on the Cutting Performance of Micro Textured Tools on Cutting Ti-6Al-4V Titanium Alloy

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 137 ◽  
Author(s):  
Kairui Zheng ◽  
Fazhan Yang ◽  
Na Zhang ◽  
Qingyu Liu ◽  
Fulin Jiang
Keyword(s):  
Surface Roughness ◽  
Titanium Alloy ◽  
Cutting Force ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cutting Performance ◽  
Cemented Carbide ◽  
Feed Force ◽  
Cemented Carbide Tools

Titanium alloys are widely used in various fields, but their machinability is poor because the chip would easily adhere to the tool surface during cutting, causing poor surface quality and tool wear. To improve the cutting performance of titanium alloy Ti-6Al-4V, experiments were conducted to investigate the effect of micro textured tool on the cutting performances. The cemented carbide tools whose rake faces were machined with line, rhombic, and sinusoidal groove textures with 10% area occupancy rates were adopted as the cutting tools. The effects of cutting depth and cutting speed on feed force and main cutting force were discussed based on experimental results. The results show that the cutting force produced by textured tools is less than that produced by non-textured tools. Under different cutting parameters, the best cutting performance can be obtained by using sinusoidal textured tools among the four types of tools. The wear of micro textured tools is significantly lower than that of non-textured tools, due to a continuous lubrication film between the chip and the rake face of the tool that can be produced because the micro texture can store and replenish lubricant. The surface roughness obtained using the textured tool is better than that using the non-textured tool. The surface roughness Ra can be reduced by 35.89% when using sinusoidal textured tools. This study is helpful for further improving the cutting performance of cemented carbide tools on titanium alloy and prolonging tool life.

Fabrication and Cutting Performance of CVD Diamond Coated Inserts with Different Coating Thickness in Dry Turning Aluminum Alloy

2012 ◽  
Vol 497 ◽  
pp. 73-77 ◽  
Author(s):  
Jian Guo Zhang ◽  
Liang Wang ◽  
Bin Shen ◽  
Fang Hong Sun
Keyword(s):  
Aluminum Alloy ◽  
Coating Thickness ◽  
Adhesive Wear ◽  
Cutting Tools ◽  
Chemical Vapor ◽  
Cvd Diamond ◽  
Cutting Performance ◽  
Dry Turning ◽  
Coated Tools ◽  
Hot Filament

CVD diamond coated inserts with different coating thickness are fabricated using hot filament chemical vapor deposition (HFCVD) method. Scanning electron microscope (SEM) and Raman spectroscopy are introduced to characterize the diamond films. The cutting performance of as-fabricated CVD diamond coated inserts is evaluated in dry turning aluminum alloy. The uncoated WC-Co tool is also adopted in the cutting tests for the sake of comparability. The testing results show that diamond coated tools exhibit much better cutting performance. Coating thickness affects the characteristics of diamond coated cutting tools, the thicker of coating, the more adhesive chips, but the better delamination resistant. The uncoated WC-Co tool suffers adhesive wear for the built-up edge (BUE) breaking.

Wear behavior and cutting performance of nanostructured hard coatings on cemented carbide cutting tools in hard milling

2013 ◽  
Vol 62 ◽  
pp. 215-222 ◽  
Author(s):  
Halil Çalışkan ◽  
Cahit Kurbanoğlu ◽  
Peter Panjan ◽  
Miha Čekada ◽  
Davorin Kramar
Keyword(s):  
Wear Behavior ◽  
Cutting Tools ◽  
Hard Coatings ◽  
Cutting Performance ◽  
Cemented Carbide ◽  
Hard Milling
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