The Influences of Cutting Edge Radius on Surface Roughness when Milling Nickel Alloy

Hronek, Ondřej; Zetek, Miroslav

doi:10.2507/28th.daaam.proceedings.144

Cited by 6 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Currently, several technologies of cutting edge preparation are used, and their sorting and application have been clearly described in the technical articles [14,17,33]. Despite this, development in this area is focused on searching for new technologies, but also on innovation of the technologies that are used daily, in serial and mass production.…”

Section: Methods Of the Cutting Edge Preparationsmentioning

confidence: 99%

The Influence of Surface Treatment of PVD Coating on Its Quality and Wear Resistant

et al. 2019

View full text Add to dashboard Cite

The article deals with a determination of the influence of a cutting edge preparation on the quality and wear resistance of coated cutting tools. Cutting inserts made from a sintered carbide with a deposited layer of PVD coating were selected for measurement. Non-homogeneity caused by the creation of droplets arises in the application layer during the process of applying the coating by the PVD method. These droplets make the surface roughness of the PVD coating worse, increase the friction and thereby the thermal load of the cutting tool as well. Also, the droplets could be the cause of the creation and propagation of droplets in the coating and they can cause quick cutting tool wear during machining. Cutting edge preparations were suggested for the improvement of the surface integrity of deposited layers of PVD coating, namely the technology of drag finishing and abrasive jet machining. After their application, the areal surface roughness was measured on the surface of coated cutting inserts, the occurrence of droplets was tracked and the surface structure was explored. A tool-life test of cutting inserts was carried out for verification of the influence of surface treatment on the wear resistance of cutting inserts during the milling process. The cutting inserts with a layer of PVD coatings termed as samples A, B, and C were used for the tool-life test. The first sample, A, represented the coating before the application of cutting edge preparations and samples B and C were after the application of the cutting edge preparation. A carbon steel termed C45 was used for the milling process and cutting conditions were suggested. The visual control of surface of cutting inserts, intensity of wear and occurrence of thermal cracks in deposited PVD layers were the criterion for the evaluation of the individual tests.

show abstract

Section: Methods Of the Cutting Edge Preparationsmentioning

confidence: 99%

The Influence of Surface Treatment of PVD Coating on Its Quality and Wear Resistant

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The biggest disadvantage of the tested geometry is that the roundness coefficient decreases as the machining process proceeds, which means that the geometry will only work well for short processes. The question of the influence of microgeometry, or more precisely, the radius of the rounded cutting edge, on roughness was addressed by Hronek and Zetek in their work [19]. In the down-milling of the Inconel 718 alloy with milling cutters with different roundings of the cutting edge, they noted that the roughness of the machined surface increases with increasing radius of the rounding.…”

Section: Introductionmentioning

confidence: 99%

Influence of Cutting-Edge Microgeometry on Cutting Forces in High-Speed Milling of 7075 Aluminum Alloy

2023

View full text Add to dashboard Cite

In the present study, the impact of cutting-edge microgeometry on the cutting forces in the finish milling of a 7075-aluminium alloy was analysed. The influence of selected values of the rounding radius of cutting edge, and the size of the margin width, on the cutting-force parameters was analysed. Experimental tests were carried out for different cross-sectional values of the cutting layer, changing the feed per tooth and radial infeed parameters. An analysis of the various statistical parameters of the force signal was performed. Experimental mathematical models of the relationship of the force parameters to the radius of the rounded cutting edge and the width of the margin were developed. The cutting forces were found to be most strongly influenced by the width of the margin and, to a minor extent, by the rounding radius of the cutting edge. It was proved that the effect of margin width is linear, and the effect of radius R is nonlinear and nonmonotonic. The minimum cutting force was shown to be for the radius of rounded cutting edge of about 15–20 micrometres. The proposed model is the basis for further work on innovative cutter geometries for aluminium-finishing milling.

show abstract

“…The tool life test of cutting inserts was carried out for verification of the influence of surface treatment on the wear resistance of cutting inserts during the milling process. The influence of cutting edge radius on the force load [11] and the surface roughness [12] in machining the nickel based alloy was determined. In the research [13] tool life during the machining of very hard material (DIN X210Cr12) was determined.…”

Section: Introductionmentioning

confidence: 99%

The Tool Wear Observation of Milling Tools in High Feed Machining of Hardened Steels

Jurina¹,

Vopát²,

Kuruc³

et al. 2019

DAAAM Proceedings

View full text Add to dashboard Cite

The paper deals with the issue of high feed machining of the hardened steels the aim was to determine dependence of the tool wear on material removed volume. The milling tools with cemented carbide cutting inserts had a cutting edge angle 20° and theoretical nose radius 1.6mm designed for milling with high values of feed. The tested workpiece material was DIN X38CrMoV53, equivalent to W.Nr. 1.2367, tool steel that was hardened and tempered what resulted in a hardness of 54 HRC. The tool wear was observed on the Zoller Genius 3s universal measuring device. The flank wear was measured with respect to the material removed volume when depth of cut and feed were varied. The flank wear was dominant tool wear type. Over the flank wear value of 0.3 mm, too large edge chipping and insert breakage were observed due to excessive wear. The highest material removed volume was observed when depth of cut of 0.5 mm and the lowest feed of 0.3 mm were used.

show abstract

The Influences of Cutting Edge Radius on Surface Roughness when Milling Nickel Alloy

Cited by 6 publications

References 5 publications

The Influence of Surface Treatment of PVD Coating on Its Quality and Wear Resistant

The Influence of Surface Treatment of PVD Coating on Its Quality and Wear Resistant

Influence of Cutting-Edge Microgeometry on Cutting Forces in High-Speed Milling of 7075 Aluminum Alloy

The Tool Wear Observation of Milling Tools in High Feed Machining of Hardened Steels

Contact Info

Product

Resources

About