Wear Properties of Cryogenic Treated Electrodes on Machining Of En-31

Singh, Amandeep; Grover, Neel Kanth

doi:10.1016/j.matpr.2015.07.060

Cited by 14 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Furthermore, literature reveals that productivity and quality are inversely related [22,25] and current and pulse on time are the most decisive factors [44]. Productivity increases with high-energy consumption (higher values of current and pulse on time), whereas quality improves at low energy utilization (lower current and pulse on time) as observed by Mandaloi et al [7], Payal et al [14] and Singh et al [15] for machining AISI M2 and EN-31 tool steels.…”

Section: Skd-mentioning

confidence: 94%

“…For investigating the influence of process parameters on productivity, cost and quality of electric discharged machined part, it can be observed from figure 1 that current, pulse on time (Pon) and pulse off time (Poff) are widely applicable process parameters as identified by researchers. Literature also suggests that the current and Pon has a direct influence on MRR, EWR and SR; all three performance measures increase when current is increased [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. Whereas, Pulse off time exhibits inverse effects that are, MRR, EWR and SR decrease at higher Poff [19,25].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Parametric Modelling and Multi-Objective Optimization of Electro Discharge Machining Process Parameters for Sustainable Production

et al. 2019

View full text Add to dashboard Cite

Electro Discharge Machining (EDM) can be an element of a sustainable manufacturing system. In the present study, the sustainability implications of EDM of special-purpose steels are investigated. The machining quality (minimum surface roughness), productivity (material removal rate) improvement and cost (electrode wear rate) minimization are considered. The influence and correlation of the three most important machining parameters including pulse on time, current and pulse off time have been investigated on sustainable production. Empirical models have been established based on response surface methodology for material removal rate, electrode wear rate and surface roughness. The investigation, validation and deeper insights of developed models have been performed using ANOVA, validation experiments and microstructure analysis respectively. Pulse on time and current both appeared as the prominent process parameters having a significant influence on all three measured performance metrics. Multi-objective optimization has been performed in order to achieve sustainability by establishing a compromise between minimum quality, minimum cost and maximum productivity. Sustainability contour plots have been developed to select suitable desirability. The sustainability results indicated that a high level of 75.5% sustainable desirability can be achieved for AISI L3 tool steel. The developed models can be practiced on the shop floor practically to attain a certain desirability appropriate for particular machine limits.

show abstract

Section: Skd-mentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Parametric Modelling and Multi-Objective Optimization of Electro Discharge Machining Process Parameters for Sustainable Production

et al. 2019

View full text Add to dashboard Cite

show abstract

“…According to test results, it was found that CT considerably enhanced MRR, but did not affect EWR significantly. In another study [13], wear properties of cryogenically treated copper, brass, and graphite electrodes in EDM of En-31 were investigated. Results of the experimental study showed that cryogenically treated copper electrode had 18 % better MRR performance and 31 % lesser EWR than the untreated one.…”

Section: Methodsmentioning

confidence: 99%

Performance of cryogenically treated Cu and CuCrZr electrodes in an EDM process

Çetin¹,

Cakir²,

Aslantaş³

et al. 2018

View full text Add to dashboard Cite

In this study, the effects of cryogenic treatment (CT) on the performance of CuCrZr alloy and Cu electrodes in electro discharge machining (EDM) of AISI P20 tool steel were investigated experimentally. For this purpose, a group of electrodes were cryogenically treated at-140 • C for 30 min and then tempered at 175 • C for 1 h. The tool performance was evaluated in terms of electrode wear rate (EWR), material removal rate (MRR), and average surface roughness (Ra) of machined surfaces. The EDM tests were conducted at pulse currents of 4, 8, 12, and 16 A and pulse durations of 25 and 50 µs. Experimental results showed that treated electrodes were less worn than the untreated ones and the Ra values of machined surfaces decreased when cryo-treated electrodes were used. Also, it was observed that pulse current is the most effective parameter in the EDM process. K e y w o r d s : electro discharge machining (EDM), cryogenic treatment, wear rate, copper alloy

show abstract

“…Sing ve Grover, EN-31 malzemesini kriyojenik işlem görmüş ve görmemiş bakır, pirinç ve grafit elektrotlar ile işleyerek kriyojenik işlemin takım aşınma oranı ve malzeme kaldırma miktarı üzerindeki etkilerini araştırmışlardır. Kriyojenik işlemin malzeme kaldırma oranında önemli bir iyileşme ve takım aşınma oranında azalma sağladığını rapor etmişlerdir [20]. Kumar ve diğerleri [21], Inconel 718'in elektro erozyon ile işlemede iyonize tankına eklenen metal tozunun etkinliğini değerlendirmek için yaptıkları deneylerde kriyojenik işlem görmüş bakır elektrotlar kullanmışlar ve kriyojenik ısıl işlemin takım aşınma oranında önemli bir azalma gözlemlemişlerdir.…”

Section: Introductionunclassified

Kriyojenik İşlem Uygulanan Elektro Erozyon Elektrot Takımının Performansının Araştırılması

Ay,

Apak

2024

Fırat Üniversitesi Mühendislik Bilimleri Dergisi

View full text Add to dashboard Cite

Bu çalışmada, Ti-6Al-4V alaşımının elektro erozyon ile işleme (EEİ) tezgâhında kullanılan elektrot malzemesinin Kriyojenik ısıl işlem sonucunda takımın işleme performansı araştırılmıştır. Çalışma kapsamında, pirinç malzemeden seçilen elektrotlar [Oda sıcaklığı / −184°C / Oda sıcaklığı] arasında bir çevrim ile Kriyojenik ısıl işleme tabi tutuldu. Deneylerde pirinç ve kriyojenik pirinç elektrotlarla boşalım akımı, darbe aktif süresi (Ton), darbe boşluk süresi (Toff) ve gap voltaj gibi en etkili işlem parametreleri değişken seçildi. Deneyler sonucunda ürün kalitesini belirleyen, yeniden katılaşan tabaka kalınlığı, malzeme kaldırma oranı ve koniklik açısı ölçümleri yapılarak değerlendirilmiştir. Elektrotlara uygulanan kriyojenik ısıl işlem sonucunda, elektrot aşınma ve malzeme kaldırma oranında pozitif iyileşmeler elde edildiği tespit edilmiştir. Yeniden katılaşan tabaka kalınlığı, malzeme kaldırma oranı, takım aşınma oranı ve koniklik miktarı oranlarının boşalım akımı, gap voltaj ve darbe aktif süresi pozitif yönde darbe boşluk süresinin ise negatif yönde etki ettiği sonucuna varılmıştır.

show abstract

Wear Properties of Cryogenic Treated Electrodes on Machining Of En-31

Cited by 14 publications

References 12 publications

Parametric Modelling and Multi-Objective Optimization of Electro Discharge Machining Process Parameters for Sustainable Production

Parametric Modelling and Multi-Objective Optimization of Electro Discharge Machining Process Parameters for Sustainable Production

Performance of cryogenically treated Cu and CuCrZr electrodes in an EDM process

Kriyojenik İşlem Uygulanan Elektro Erozyon Elektrot Takımının Performansının Araştırılması

Contact Info

Product

Resources

About