Chip Flow and Notch Wear Mechanisms during the Machining of High Austenitic Stainless Steels

Chandrasekaran, H.; Johansson, Jakob

doi:10.1016/s0007-8506(07)62174-x

Cited by 42 publications

(19 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The TiN based coatings are well known to significantly reduce the friction at the tool-material interface [33] and it is particularly sensitive in this case because of high load associated to high feed rate and of the sticking behaviour of stainless steels in machining [34].…”

Section: Results Obtained With Mill Amentioning

confidence: 99%

Experimental investigations from conventional to high speed milling on a 304-L stainless steel

Maurel-Pantel

Fontaine

Guerbet

et al. 2013

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Last years analytical or finite element models of milling become more efficient and focus on more physical aspects, nevertheless the milling process is still experimentally unknown on a wide range of use. This paper propose to analyse with accuracy milling operations by investigating the cutting forces values, shape of cutting forces curves obtained for different cutting speeds, and related phenomena as tool wear or tool run-out. These detailed experimental data in milling constitute a suitable experimental basis available to develop predictive machining modelling. All the tests have been conducted on the 304L stainless steel in many cutting configurations and for different tool geometries. The machinability of the 304L stainless steel with different tools geometries and configurations in shoulder milling is defined by three working zones: a conventional zone permitting stable cutting (low cutting speed; under 200-250 m.min -1 ), a dead zone (unfavourable for cutting forces level and cutting stability; between 250 and 450 m.min -1 ), and a high speed machining zone (high cutting speed; up to 450-500 m.min -1 ). All the used criteria (cutting forces, chips, wear) confirm the existence of these different zones and a correlation is proposed with cutting perturbations as run-out, cutting instability, ploughing and abrasive wear.

show abstract

Section: Results Obtained With Mill Amentioning

confidence: 99%

Experimental investigations from conventional to high speed milling on a 304-L stainless steel

Maurel-Pantel

Fontaine

Guerbet

et al. 2013

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…Creation and formation of chips and tool wear of the cutting edge of the tool influence the capacity of workpiece processing. According to [6] material machinability is expressed as a quality of the material, which is defined by the state of the cut surface, the creation and shaping of chips, the effect of cutting forces and the tool life of the cutting edge.…”

Section: Experimental Procedures Analysis and Resultsmentioning

confidence: 99%

Elementary Study of the Machinability During Drilling of Stainless Steels X2Cr18Ni8

Jurko¹,

Mrkvica²,

Zaborowski³

2015

Mechanik

View full text Add to dashboard Cite

Precise and reliable information on the machinability of a material before it enters the machining process is a necessity, and hypotheses must be tested through verification of actual methods. This article presents conclusions of machinability tests on austenitic stainless steels X2Cr18ni8and describes appropriate parameters for the cutting zone during the process of drilling. The article focuses on the analysis of selected domains through four basic some parameters of steel machinability.Keywords: drilling, cutting zone, plastic deformation, stainless steels, machinability, machined surface, Przed wdrożeniem nowych tworzyw konstrukcyjnych do procesu obróbki skrawaniem niezbędne są precyzyjne i niezawodne informacje o ich obrabialności, przy czym powinny być one sprawdzone aktualnymi metodami. W artykule przedstawiono wnioski z badania obrabialności austenitycznej stali nierdzewnej X2Cr18Ni8, opisano także właściwe parametry strefy skrawania w procesie wiercenia. W artykule skupiono się na analizie czterech podstawowych parametrów obrabialności stali w wybranych zakresach.Słowa kluczowe: wiercenie, strefa skrawania, odkształce-nie plastyczne, stal nierdzewna, obrabialność.

show abstract

“…Even while part bulk hardness measure HRC 40~45, the hardness of the individual particles that make up the part can reach HRC60. These hard particles cause severe and rapid edge wear [12] . Due to the presence of porosity and structure of sintered powder metallurgy superalloy, the machinability of such materials often bears a little resemblance to materials of similar composition of cast or wrought origin.…”

Section: Introductionmentioning

confidence: 99%

An experimental study of machinability of FGH95 in end milling with coated carbide tools

Wang

Tan

2010

SPIE Proceedings

View full text Add to dashboard Cite

FGH95 is one of difficult-to-cut nickel-based powder metallurgy (PM) superalloys which are commonly used in advanced turbo-engines. Firstly, this paper presents an orthogonal design experiments to study the cutting force and cutting temperature variations in the end milling of FGH95 with two kinds of coated carbide tools. It is found that AlTiN coated solid carbide end mill is suit for machining FGH95 nickel-based powder metallurgy superalloy. Experimental results show that with the increase of cutting speed, radial depth of cut, feed rate, there is a growing tendency in cutting forces. Among the cutting condition parameters, cutting speed has the greatest influence on cutting forces, especially when cutting speed exceeds 55m/min. With the increase of cutting speed and radial depth of cut, cutting temperature increases. However the cutting temperature decreases slightly as the increasing of feed rate. Reason for temperature variations is investigated in this paper. Secondly, tool wear mechanism in end milling of FGH95 is analyzed. It is shown that chipping on cutting edge is the most dominate wear mechanism which dominates the deterioration and final failure of the coated carbide tools. Thirdly, the machined surface topography is measured with white light interferometer and Super depth digital microscope. Based on the measurement, it is found that better surface roughness and waviness are obtained with using AlTiN coated carbide tools than by TiAlN/TiN/TiAlN coated ones.

show abstract

Chip Flow and Notch Wear Mechanisms during the Machining of High Austenitic Stainless Steels

Cited by 42 publications

References 2 publications

Experimental investigations from conventional to high speed milling on a 304-L stainless steel

Experimental investigations from conventional to high speed milling on a 304-L stainless steel

Elementary Study of the Machinability During Drilling of Stainless Steels X2Cr18Ni8

An experimental study of machinability of FGH95 in end milling with coated carbide tools

Contact Info

Product

Resources

About