scholarly journals Tool wear, surface roughness, cutting temperature and chips morphology evaluation of Al/TiN coated carbide cutting tools in milling of Cu-B-CrC based ceramic matrix composites

2021 ◽  
Author(s):  
Üsame Ali Usca ◽  
Mahir Uzun ◽  
Serhat Sap ◽  
Mustafa Kuntoğlu ◽  
Khaled Giasin ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Wear Surface ◽  
Cutting Tools ◽  
Cutting Temperature ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Matrix Composites ◽  
Coated Carbide

Monitoring of Cutting Conditions with Dry Cutting on CNC Turning Machine

2010 ◽  
Vol 443 ◽  
pp. 382-387 ◽  
Author(s):  
Somkiat Tangjitsitcharoen ◽  
Suthas Ratanakuakangwan
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Cutting Forces ◽  
Cutting Temperature ◽  
Cutting Conditions ◽  
Cutting Condition ◽  
Nose Radius ◽  
Dry Cutting ◽  
Cnc Turning ◽  
Coated Carbide

This paper presents the additional work of the previous research in order to verify the previously obtained cutting condition by using the different cutting tool geometries. The effects of the cutting conditions with the dry cutting are monitored to obtain the proper cutting condition for the plain carbon steel with the coated carbide tool based on the consideration of the surface roughness and the tool life. The dynamometer is employed and installed on the turret of CNC turning machine to measure the in-process cutting forces. The in-process cutting forces are used to analyze the cutting temperature, the tool wear and the surface roughness. The experimentally obtained results show that the surface roughness and the tool wear can be well explained by the in-process cutting forces. Referring to the criteria, the experimentally obtained proper cutting condition is the same with the previous research except the rake angle and the tool nose radius.

The effect of monolayer TiCN-, AlTiN-, TiAlN-and two layers TiCN + TiN- and AlTiN + TiN-coated cutting tools on tool wear, cutting force, surface roughness and chip morphology during high-speed milling of Ti6Al4V titanium alloy

2016 ◽  
Vol 232 (7) ◽  
pp. 1273-1286 ◽  
Author(s):  
Emel Kuram
Keyword(s):  
Surface Roughness ◽  
Titanium Alloy ◽  
Tool Wear ◽  
Cutting Force ◽  
High Speed ◽  
Cutting Tools ◽  
Chip Morphology ◽  
High Speed Milling ◽  
Ti6al4v Titanium Alloy ◽  
Coated Carbide

Tool coatings can improve the machinability performance of difficult-to-cut materials such as titanium alloys. Therefore, in the current work, high-speed milling of Ti6Al4V titanium alloy was carried out to determine the performance of various coated cutting tools. Five types of coated carbide inserts – monolayer TiCN, AlTiN, TiAlN and two layers TiCN + TiN and AlTiN + TiN, which were deposited by physical vapour deposition – were employed in the experiments. Tool wear, cutting force, surface roughness and chip morphology were evaluated and compared for different coated tools. To understand the tool wear modes and mechanisms, detailed scanning electron microscope analysis combined with energy dispersive X-ray of the worn inserts were conducted. Abrasion, adhesion, chipping and mechanical crack on flank face and coating delamination, adhesion and crater wear on rake face were observed during high-speed milling of Ti6Al4V titanium alloy. In terms of tool wear, the lowest value was obtained with TiCN-coated insert. It was also found that at the beginning of the machining pass TiAlN-coated insert and at the end of machining TiCN-coated insert gave the lowest cutting force and surface roughness values. No change in chip morphology was observed with different coated inserts.

Experimental Study on Milling of Titanium Matrix Composites

2013 ◽  
Vol 589-590 ◽  
pp. 281-286
Author(s):  
Hai Xiang Huan ◽  
Jiu Hua Xu ◽  
Hong Hua Su ◽  
Yu Can Fu ◽  
Ying Fei Ge
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Cutting Temperature ◽  
Polycrystalline Diamond ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites ◽  
Pcd Tool ◽  
Induced Defects ◽  
Pcd Tools

Titanium matrix composites (TMCs) possess many outstanding properties and have increasing and potential application in aerospace, automobile and other industries. However, TMCs are typical difficult-to-machining material due to the rapid tool wear rate and excessive machining induced defects. In this paper, tool wear, cutting forces, cutting temperature and surface roughness were investigated when milling TMCs with Polycrystalline Diamond (PCD) and carbide tools. The results showed that the values of surface roughness obtained by carbide tools were higher than that of PCD tools under the same cutting conditions. The value of cutting temperature for PCD tool was about 75% of the carbide tools, and the main cutting force value of PCD tool was about 85% of the carbide tool. Abrasive and adhesive wear were the main wear mechanisms of PCD and carbide tools. In all, PCD tools had a better cutting performance than carbide tools during finishing milling titanium matrix composites.

Investigation of Tool Wear, Tool Life and Surface Roughness when Machining AISI D2 Hardened Steel Using PVD TiAlN Coated Carbide Tools

2013 ◽  
Vol 465-466 ◽  
pp. 1098-1102 ◽  
Author(s):  
Noor Hakim Rafai ◽  
Mohd Amri Lajis ◽  
N.A.J. Hosni
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Tool Life ◽  
Material Removal ◽  
Cutting Tools ◽  
Hardened Steel ◽  
Tool Failure ◽  
Aisi D2 ◽  
Wear Tool ◽  
Coated Carbide

This paper discussed the behavior of cutting tool in terms of tool wear, tool life and surface roughness when machining an AISI D2 hardened steel. An experimental test was conducted at different cutting speeds (Vc) and radial depth of cut (ae) using PVD TiAlN coated carbide tool under dry condition. Tool failure modes and tool wear mechanism for all cutting tools were examined at various cutting parameters. Flank wear was found to be the predominant tool failure for cutting tools. The highest volume material removal (VMR) attained was 3750 mm3 meanwhile the highest tool life (TL) was 9.69 min. The surface roughness (Ra) values from 0.09 to 0.24 μm can be attained in the workpiece with a high material removal. The relationship of tool wear performance and surface integrity was established to lead an optimum parameter in order to have high material removal, maximum tool life as well as acceptable surface finish.

Characterization of modified ceramic fiber surfaces using AFM

1995 ◽  
Vol 53 ◽  
pp. 352-353
Author(s):  
C. L. Amold ◽  
K. L. More ◽  
E. Lara-Curzio
Keyword(s):  
Surface Roughness ◽  
Fiber Composite ◽  
Fiber Surface ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Interfacial Properties ◽  
Ceramic Fiber ◽  
Matrix Composites ◽  
Interfacial Behavior ◽  
Pull Out

Several models have been developed to describe the interfacial behavior of fiber-reinforced ceramic matrix composites. However, these models are limited in that they do not take into account the effect of fiber surface roughness on the fiber sliding resistance. Clearly, the fiber surface roughness will play an important role in extensive fiber/matrix debonding and fiber pull-out behavior which are characteristic of a toughened composite. In this study, a Topometrix TMX2010 Atomic Force Microscope (AFM) was used to quantitatively evaluate the surface topography of a SiC fiber subjected to a series of surface modification treatments. The relationship between interfacial properties determined from fiber push-out tests and the surface roughness will be used to modify existing mathematical models.In order to systematically study the effect of surface roughness on the interfacial properties of ceramic matrix composites, a “model” single fiber composite having varying degrees of fiber surface roughness was developed. This was accomplished by using a single manufacturer's ceramic fiber which was subjected to a series of treatments in order to alter the surface.

scholarly journals EFFECT OF HIGH PRESSURE COOLANT JET ON CUTTING TEMPERATURE, TOOL WEAR AND SURFACE FINISH IN TURNING HARDENED (HRC 48) STEEL

2015 ◽  
Vol 45 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Mozammel Mia ◽  
Nikhil Ranjan Dhar
Keyword(s):  
High Pressure ◽  
Tool Wear ◽  
Cutting Forces ◽  
High Speed ◽  
Hard Turning ◽  
Cutting Tools ◽  
Cutting Temperature ◽  
Beneficial Effects ◽  
Coated Carbide ◽  
High Pressure Coolant

Hard turning of harder material differs from conventional turning because of its larger specific cutting forces requirements. The beneficial effects of hard turning can be offset by excessive temperature generation which causes rapid tool wear or premature tool failure if the brittle cutting tools required for hard turning are not used properly. Under these considerations, the concept of high-pressure coolant (HPC) presents itself as a possible solution for high speed machining in achieving slow tool wear while maintaining cutting forces at reasonable levels, if the high pressure cooling parameters can be strategically tuned. This paper deals with an experimental investigation of some aspects of the turning process applied on hardened steel (HRC48) using coated carbide tool under high-pressure coolant, comparing it with dry cut. The results indicate that the use of high-pressure coolant leads to reduced surface roughness, delayed tool flank wear, and lower cutting temperature, while also having a minimal effect on the cutting forces.

Electroconductive Ceramic Composites for Cutting Tools

2006 ◽  
Vol 514-516 ◽  
pp. 638-642 ◽  
Author(s):  
Flávia A. Almeida ◽  
Helena Bóia ◽  
Catarina Santos ◽  
Jorge Monteiro ◽  
Filipe J. Oliveira ◽  
...  
Keyword(s):  
Cost Reduction ◽  
Cutting Tools ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Materials ◽  
Ceramic Composites ◽  
Matrix Composites ◽  
Si3n4 Ceramic ◽  
The Cost ◽  
Si3n4 Matrix

The addition of titanium nitride (TiN) particles to a Si3N4 matrix reduces the intrinsic electric resistivity of this ceramic allowing it to be machined by EDM in cutting tools manufacturing. Gains can be expected given the cost reduction by the increase of productivity when shaping these hard to machine ceramic materials. Si3N4 ceramic matrix composites (CMC’s) with 0- 30vol.% of TiN sub-micrometric particles were produced by uniaxial hot pressing (HP) and pressureless sintering (PS). For the PS samples, EDM tests showed that machining of the composites is possible when they contain at least 23vol.% TiN particles what corresponds to a resistivity of 7.5cm. For HP samples at least 30vol.% of TiN is required to get an electroconductive material for EDM machining. This difference is due to the lower temperatures used in the HP process that delay the formation of a conductive network between the TiN particles.

Dry Machining Using Vortex-Tube Generated Cold Air as Coolant: A Literature Review

2008 ◽  
Author(s):  
Weilong Cong ◽  
Z. J. Pei
Keyword(s):  
Residual Stress ◽  
Surface Roughness ◽  
Literature Review ◽  
Tool Wear ◽  
Wear Surface ◽  
Vortex Tube ◽  
Cutting Temperature ◽  
Future Research ◽  
Dry Machining ◽  
Cold Air

This paper reviews the literature on dry machining with VT cooling (using vortex-tube generated cold air as coolant). It presents reported experimental results on effects of VT cooling on cutting force, cutting temperature, tool wear, surface roughness, and residual stress. It also points out areas where VT cooling applications have not been reported and potential directions for future research.

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