Machining of austenitic stainless steels using CVD multi-layer coated cemented carbide tools

Çiftçi, İbrahim

doi:10.1016/j.triboint.2005.05.005

Cited by 195 publications

(118 citation statements)

References 7 publications

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“…Further, according to the ANOVA analysis, it was found that the cutting fluid had a considerable effect on both the surface roughness and the tool wear. Ciftci 15 investigated the influence of the cutting speed and the tool coating on the surface roughness and the cutting force in the turning of the AISI 304 and AISI 316 austenitic stainless steels under dry cutting conditions. It was reported that the cutting speed considerably affected the surface roughness.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the surface roughness by applying the Taguchi technique for the turning of stainless steel under cooling conditions

Sarıkaya¹

2015

Mater. Tehnol.

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This paper presents the optimization of the surface roughness using the Taguchi technique to assess the machinability of the AISI 316Ti steel with PVD coated carbide inserts under different cooling conditions such as dry, conventional (wet) and cryogenic cooling with liquid nitrogen (LN2). Based on the Taguchi L9 (3 3 ) orthogonal-array design, the machinability tests were made utilizing a CNC lathe machine. Test parameters including the cutting speed, the cooling condition and the feed rate were taken and then the surface roughness (Ra) was measured to obtain the machinability indicator. An analysis of variance was performed to determine the importance of the input parameters for the surface roughness. The process parameters were optimized by taking the Taguchi technique into consideration. The Taguchi signal-to-noise ratio was employed with the smaller-the-better approach to obtain the best combination. On the basis of the first-order model, a mathematical model was created using the regression analysis to predict the Ra model. The results indicate that the feed rate is the parameter with the highest effect on the surface roughness and that the other parameters also have a statistical significance. In addition, cryogenic cooling is an alternative method for increasing the surface quality of machined parts. Keywords: AISI 316Ti, cryogenic cooling, machinability, optimization, surface roughness, Taguchi method lanek obravnava optimiranje hrapavosti povr{ine z uporabo Taguchi-jeve metode za oceno obdelovalnosti jekla AISI 316Ti s karbidnimi vlo`ki s PVD-nanosom v razli~nih razmerah ohlajanja, kot je suho, navadno (mokro) in kriogensko hlajenje s teko~im du{ikom (LN2). Preizkusi obdelovalnosti so bili izvr{eni s CNC-stru`nico na osnovi Taguchi-jevega ortogonalnega niza L9 (3 3 ). Izbrani so bili parametri preizkusov, hitrost rezanja, razmere pri ohlajanju in hitrost podajanja, nato pa je bila izmerjena hrapavost povr{ine (Ra) kot pokazatelj obdelovalnosti. Izvr{ene so bile analize variance, da bi ugotovili pomembnost vhodnih parametrov na hrapavost povr{ine. Procesni parametri so bili optimirani z upo{tevanjem Taguchi-jeve tehnike. Uporabljeno je bilo Taguchi-jevo razmerje signal -hrup s pribli`kom~im manj{e tem bolj{e za doseganje najbolj{e kombinacije. Na osnovi modela prvega reda je bil postavljen z uporabo regresijske analize matemati~ni model za napovedovanje Ra. Rezultati ka`ejo, da je hitrost podajanja parameter z najve~jim u~inkom na hrapavost povr{ine, vsi drugi parametri imajo statisti~no zna~ilnost. Dodatno je kriogensko ohlajanje alternativna metoda za pove~anje kvalitete povr{ine stru`enih delov.

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Section: Introductionmentioning

confidence: 99%

Optimization of the surface roughness by applying the Taguchi technique for the turning of stainless steel under cooling conditions

Sarıkaya¹

2015

Mater. Tehnol.

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“…Xavior & Adithan (2009) determined the influence of different cutting fluids on wear and surface roughness in turning of AISI 304 austenitic stainless steel. Ciftci (2006) conducted the experiments to Machine AISI 304 and AISI 316 austenitic stainless steels using CVD multi-layer coated cemented carbide tools.…”

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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“…In a study in the literature, it was specified that the cutting speed did not cause any significant change in the cutting forces, while it affected the surface roughness significantly. 4 In the turning process for AISI 304 stainless steel, at high cutting speeds exceeding the 150 m/min, the tool wear and the surface-roughness values were decreased with the increasing of the cutting speed. 5 The cutting tools should provide the suitable cutting parameters required for maximum efficiency.…”

Section: Introductionmentioning

confidence: 97%

The effects of cutting conditions on the cutting torque and tool life in the tapping process for AISI 304 stainless steel

Uzun¹,

Korkut²

2016

Mater. Tehnol.

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In this study tapping operations were carried out using taps of different diameters and with different cutting parameters on AISI 304 austenitic stainless steel. The cutting performances of the taps were determined according to the cutting torques created during the threading and the depth of cut for each cutting feed (Q). With the aid of the obtained experimental data the solution suggestions to the problems in the threading operations for AISI 304 steel were developed. As a result it was specified that the increasing amount of cutting in each pass directly affected the cutting torque. It was determined that there was a tendency to decrease the cutting torque with the increasing depth of cut for each cutting feed. The best tool-life results for an M5 tap were obtained at a 5-mm Q value, whereas for M6 taps it was at a 3-mm Q value. Keywords: tapping, AISI 304, machinability V {tudiji je bilo izvedeno vrezovanje notranjih navojev z uporabo navojnega vreznika z razli~nimi premeri in razli~nimi nivoji vrezovalnih parametrov v avstenitnem jeklu AISI 304. Zmogljivosti vrezovanja navojnih vreznikov so bile dolo~ene glede na moment, ki je nastal med vrezovanjem navojev v globino, za vsako hitrost podajanja pri vrezovanju (Q). S pomo~jo dobljenih eksperimentalnih podatkov so bili postavljeni predlogi re{itev problemov pri postopku vrezovanja navojev pri jeklu AISI 304. Pokazalo se je, da pove~anje vrezovanja pri vsakem prehodu neposredno vpliva na moment pri vrezovanju. Ugotovljeno je, da se zmanj{uje moment vrezovanja s pove~anjem globine reza pri vsakem podajanju pri vrezovanju. Najbolj{a zdr`ljivost orodja pri M5 vrezniku je bila dose`ena pri vrednosti Q = 5 mm, pri vrezniku M6 pa pri vrednosti Q = 3 mm. Klju~ne besede: vrezovanje notranjih navojev, AISI 304, strojna obdelava

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Machining of austenitic stainless steels using CVD multi-layer coated cemented carbide tools

Cited by 195 publications

References 7 publications

Optimization of the surface roughness by applying the Taguchi technique for the turning of stainless steel under cooling conditions

Optimization of the surface roughness by applying the Taguchi technique for the turning of stainless steel under cooling conditions

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

The effects of cutting conditions on the cutting torque and tool life in the tapping process for AISI 304 stainless steel

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