SURFACE INTEGRITY OF HIGH-SPEED FACE MILLED<i>Ti-6Al-4V</i>ALLOY WITH PCD TOOLS

Li, Anhai; Zhao, Jun; Dong, Yongwang; Wang, Dong; Chen, Xiaoxiao

doi:10.1080/10910344.2013.806180

Cited by 13 publications

(10 citation statements)

References 17 publications

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“…The reason is the contact area between the cutting tool and the machined surface is so smaller that the maximal temperature of the machined surface would be lower than the austenitizing temperature of workpiece material [62]. The similar results were found by Li and Zhao [63] and Devillez et al [64].…”

Section: Machined Surface Metallurgy Characteristicsupporting

confidence: 65%

Part Functionality Alterations Induced by Changes of Surface Integrity in Metal Milling Process: A Review

et al. 2018

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It has been proved that surface integrity alteration induced by machining process has a profound influence on the performance of a component. As a widely used processing technology, milling technology can process parts of different quality grades according to the processing conditions. The different cutting conditions will directly affect the surface state of the machined parts (surface texture, surface morphology, surface residual stress, etc.) and affect the final performance of the workpiece. Therefore, it is of great significance to reveal the mapping relationship between working conditions, surface integrity, and parts performance in milling process for the rational selection of cutting conditions. The effects of cutting parameters such as cutting speed, feed speed, cutting depth, and tool wear on the machined surface integrity during milling are emphatically reviewed. At the same time, the relationship between the machined surface integrity and the performance of parts is also revealed. Furthermore, problems that exist in the study of surface integrity and workpiece performance in milling process are pointed out and we also suggest that more research should be conducted in this area in future.

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Section: Machined Surface Metallurgy Characteristicsupporting

confidence: 65%

Part Functionality Alterations Induced by Changes of Surface Integrity in Metal Milling Process: A Review

et al. 2018

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“…The material was a Ti-6Al-4V. It is widely used in aerospace, marine and offshore, vehicle, gas turbine, engines and biomedical industries due to its specific functional properties [Amin 2007], [Babik 2017], [Balazic 2007], [Ezugwu 2003], [Krishnaraj 2014], [Li 2013], [Oosthuizen 2011], [Pittalà 2018], [Pramanik 2014], [Rao 2018], [Safari 2014]. The used machine was an SLM 280 HL with a YLR fibre laser [Yan 2015].…”

Section: Workpiecementioning

confidence: 99%

“…The high fracture toughness of the tool is required for this type of machining technology [DAVIS 1995] [Tso 2002. Another motivation of the work is also that diamond cutting material has not been applied to the given cutters so far, even though polycrystalline diamond has been preferred for machining of titanium alloys by many studies [Amin 2007], [Corduan 2003], [Li 2013], [Nabhani 2001], [Oosthuizen 2011], [Shokrani 2012], [Su 2012]. However, the requirements for sharpening and machining increase due to PCD specific machinability, what is important fact for producers of cutting tools using diamond-based materials.…”

Section: Introductionmentioning

confidence: 99%

Analyzing the Performance of Circle Segment End Mill With PCD Inserts With Laser-Machined Integral Chipbreaker When Dry Milling of Additive Manufactured Ti-6al-4v Titanium Alloy

Trčka¹,

Polzer²

2021

MM SJ

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Components with generally shaped surfaces requiring higher surface quality and dimensional accuracy are, in most cases, machined. Specifically, milling technology is involved very often, which can be supplemented by finishing operations. Besides standard ball-nose end mills, circle segment end mills are modern type of cutter that has begun to be used with the development of advanced computer aided machining software, that allows to work with these shaped tools. In this research, comparing the performance of these two modern shaped end mills was investigated. One tool was a commercially available coated solid carbide circle segment end mill. A second prototype end mill with the same profile but different geometry was made with a PCD insert, that additionally had a chipbreaker produced by laser technology. Machining was carried out on the workpiece material the Ti-6Al-4V that was manufactured by additive manufacturing (AM) technology – selective laser melting (SLM). The titanium complex parts are generally used in the transport industries and medicine. Milling tests were performed under dry cutting conditions. The evaluation was based on the force load, the roughness of the machined surface and tool wear. The higher total forces were measured by the tool with a PCD insert, because a different tool geometry was used, despite the use of integral chipbreaker, which allows a partial change of the cutting geometry of the insert. The geometry of end mills with brazed insert is limited by the production process.

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“…To obtain higher cutting speed during traditional machining, a larger tool diameter of the end mill is usually applied in the high-speed machining tests. [18][19][20][21][22] Li et al 23,24 had tried to use PCD in high-and very high-cutting speed (500-2000 m/min) milling of titanium alloy with a large diameter (125 mm) face mill equipped with the cutting width of one-fifth dimension of the tool diameter. The increase in cutting speed dramatically decreases tool life.…”

Section: Introductionmentioning

confidence: 99%

Effect of cutting speed on chip formation and wear mechanisms of coated carbide tools when ultra-high-speed face milling titanium alloy Ti-6Al-4V

Zhao

Hou

2017

Advances in Mechanical Engineering

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Chip morphology and its formation mechanisms, cutting force, cutting power, specific cutting energy, tool wear, and tool wear mechanisms at different cutting speeds of 100-3000 m/min during dry face milling of Ti-6Al-4V alloy using physical vapor deposition-(Ti,Al)N-TiN-coated cemented carbide tools were investigated. The cutting speed was linked to the chip formation process and tool failure mechanisms of the coated cemented cutting tools. Results revealed that the machined chips exhibited clear saw-tooth profile and were almost segmented at high cutting speeds, and apparent degree of saw-tooth chip morphology occurred as cutting speed increased. Abrasion in the flank face, the adhered chips on the wear surface, and even melt chips were the most typical wear forms. Complex and synergistic interactions among abrasive wear, coating delamination, adhesive wear, oxidation wear, and thermal mechanical-mechanical impacts were the main wear or failure mechanisms. As the cutting speed was very high (.2000 m/min), discontinuous or fragment chips and even melt chips were produced, but few chips can be collected because the chips easily burned under the extremely high cutting temperature. Large area flaking, extreme abrasion, and serious adhesion dominated the wear patterns, and the tool wear mechanisms were the interaction of thermal wear and mechanical wear or failure under the ultra-high frequency and strong impact thermo-mechanical loads.

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SURFACE INTEGRITY OF HIGH-SPEED FACE MILLEDTi-6Al-4VALLOY WITH PCD TOOLS

Cited by 13 publications

References 17 publications

Part Functionality Alterations Induced by Changes of Surface Integrity in Metal Milling Process: A Review

Part Functionality Alterations Induced by Changes of Surface Integrity in Metal Milling Process: A Review

Analyzing the Performance of Circle Segment End Mill With PCD Inserts With Laser-Machined Integral Chipbreaker When Dry Milling of Additive Manufactured Ti-6al-4v Titanium Alloy

Effect of cutting speed on chip formation and wear mechanisms of coated carbide tools when ultra-high-speed face milling titanium alloy Ti-6Al-4V

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