Effects of free-cutting additives on the machinability of austenitic stainless steels

Akasawa, Tadahisa; Sakurai, H.; Nakamura, M.; Tanaka, Takio; Takano, Koji

doi:10.1016/s0924-0136(03)00321-2

Cited by 116 publications

(67 citation statements)

References 5 publications

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“…Current practice to produce specific free-machining (free-cutting) steels is to employ enhanced or special alloying additions (e.g. Pb, S, P, Bi, Se, Te) which presents some difficulties with processing or re-cycling [3,[6][7][8][9]. However, fast graphitisation would be required given the necessity of short annealing times in the high tonnage steel industry.…”

Section: Introductionmentioning

confidence: 99%

A high-resolution study of graphite nodule formation in experimental medium-carbon machining steel

Inam

Brydson

Edmonds

2017

Materials Characterization

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Alloying a medium-carbon steel has accelerated graphite formation during annealing, for example, during high-temperature tempering. Electron microscopy and related techniques ACCEPTED MANUSCRIPT A C C E P T E D M A N U S C R I P T have been used to characterise the graphite particle structure and dispersion from pre-anneal starting microstructures of ferrite-pearlite, bainite and martensite. Graphitisation in the solid state in steels (and also, for useful comparison, in cast irons) has previously received little attention. However, FIB/FEGSEM has permitted specimen preparation of the relatively coarse microstructures, thus enabling high-resolution observation previously limited for graphite formation in cast irons and steels. The study has importance to the potential development of more economic and user-friendly machining steels, which would rely upon internal lubrication by graphite nodules within the microstructure. Many recently developed advanced steels are reduced in carbon but expensively alloyed to produce the desired properties, whereas an aim in this project is simply to use carbon, which is a very cheap and abundant alloying element.

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Section: Introductionmentioning

confidence: 99%

A high-resolution study of graphite nodule formation in experimental medium-carbon machining steel

Inam

Brydson

Edmonds

2017

Materials Characterization

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“…This is due to the generation of heat during the machining of AISI 304 stainless steel, which is not dissipated rapidly because of the low thermal conductivity of this material. Akasawa et al (2003) have underlined that additive elements have a significant influence on the machinability of austenitic stainless steels. During dry and wet turning using K10 carbide tools, pre-cited authors found that dry cutting process produces the rougher surface compared with the wet one.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of AISI304 austenitic stainless steel machining using Ti(C, N)/Al2O3/TiN CVD coated carbide tool

Berkani¹,

Yallese²,

Boulanouar³

et al. 2015

10.5267/j.ijiec

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The present research work investigated the machining of AISI304 austenitic stainless steel in terms of machining force evolution, power consumption, specific cutting force and surface roughness where a factorial experiment design and analysis of variance technique were used and several factors were evaluated for their effects on each level. The case of dry turning process was studied based on design of experiments in order to obtain empirical equations characterizing material machinability according to cutting conditions such as cutting speed, feed rate and depth of cut and the latter ones were put in relationship with the machining output variables (Ra, Fc, Kc and Pc) through the response surface methodology (RSM). Results revealed that feed rate was the most preponderant factor affecting surface roughness (71.04%). However, the depth of cut affects considerably cutting force and cutting power by (60.74% and 67.11%), respectively. In addition, the specific cutting force was found affected significantly by cutting speed with a contribution of 41.43%. The quadratic model of RSM associated with response optimization technique and composite desirability was used to find optimum values of machining parameters (104.54 m/min, 0.08 mm/rev and 0.295 mm).

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“…Probably this was the first attempt to determine the optimum cutting conditions during machining of AISI 304 austenitic stainless steel. Akasawa et al (2003) conducted experiments to determine the effect of variations of the contents of additives S, Ca, Cu and Bi on the machinability of various grades of 300 series of austenitic stainless steel. Jukka Paro et.…”

Section: Literature Reviewmentioning

confidence: 99%

Parametric optimization during machining of AISI 304 Austenitic Stainless Steel using CVD coated DURATOMIC cutting insert

Kaladhar¹,

Subbaiah²,

Rao³

2012

ijiec

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In this work, Taguchi method is applied to determine the optimum process parameters for turning of AISI 304 austenitic stainless steel on CNC lathe. A Chemical vapour deposition (CVD) coated cemented carbide cutting insert is used which is produced by Duratomic TM technology of 0.4 and 0.8 mm nose radii. The tests are conducted at four levels of Cutting speed, feed and depth of cut. The influence of these parameters are investigated on the surface roughness and material removal rate (MRR). The Analysis Of Variance (ANOVA) is also used to analyze the influence of cutting parameters during machining. The results revealed that cutting speed significantly (46.05%) affected the machined surface roughness values followed by nose radius (23.7%). The influence of the depth of cut (61.31%) in affecting material removal rate (MRR) is significantly large. The cutting speed (20.40%) is the next significant factor. Optimal range and optimal level of parameters are also predicted for responses.

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Effects of free-cutting additives on the machinability of austenitic stainless steels

Cited by 116 publications

References 5 publications

A high-resolution study of graphite nodule formation in experimental medium-carbon machining steel

A high-resolution study of graphite nodule formation in experimental medium-carbon machining steel

Statistical analysis of AISI304 austenitic stainless steel machining using Ti(C, N)/Al2O3/TiN CVD coated carbide tool

Parametric optimization during machining of AISI 304 Austenitic Stainless Steel using CVD coated DURATOMIC cutting insert

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