Study the effect of the graphite powder mixing electrical discharge machining on creation of surface residual stresses for AISI D2 die steel using design of experiments

Other Title(s)

دراسة تأثير مسحوق الجرافيت المخلوط بعملية التشغيل بالتفريغ الكهربائي على إنشاء الإجهادات السطحية المتبقية لصلب القوالب نوع 2 AISI D باستخدام تقنية تصميم التجارب

Joint Authors

Ali, Sad Mahmud
Amin, Samir Ali
al-Khazraji, Ahmad Nayif Ibrahim

Source

Engineering and Technology Journal

Issue

Vol. 33, Issue 6A (30 Jun. 2015), pp.1399-1415, 17 p.

Publisher

University of Technology

Publication Date

2015-06-30

Country of Publication

Iraq

No. of Pages

17

Main Subjects

Materials Science , Minerals
Electronic engineering

Abstract EN

This paper attempted to study the induced surface residual stresses due the effect of Electrical discharge machining (EDM) input parameters, (the pulse current, the pulse-on time and the type of electrode).

The work included the use of two types of electrode, the copper and graphite as well as using or without using the graphite powder mixing with the kerosene dielectric (PMEDM) for machining AISI D2 dies steel.

The response surface methodology (RSM) was used for design the experimental work matrices.

The analysis of variance (ANOVA) was used, and models were built to predict the surface residual stresses.

The obtained results showed that the minimum tensile surface residual stresses obtained when using the copper electrodes with pulse current (22 A) and pulse on duration (40 μs) when working with kerosene dielectric alone and (8 A) with (120 μs) when working with graphite powder mixing.

The results concluded that the using of graphite electrodes and kerosene dielectric alone or with powder mixing induced minimum residual stresses with pulse current (22 A) and pulse on duration (120 μs).

The copper electrodes with kerosene dielectric and graphite powder mixing improved the induced tensile residual stresses by about (80 %) lower than when using kerosene dielectric alone and about (50%) lower than with graphite electrodes and the kerosene dielectric alone or with graphite mixing powder.

American Psychological Association (APA)

al-Khazraji, Ahmad Nayif Ibrahim& Amin, Samir Ali& Ali, Sad Mahmud. 2015. Study the effect of the graphite powder mixing electrical discharge machining on creation of surface residual stresses for AISI D2 die steel using design of experiments. Engineering and Technology Journal،Vol. 33, no. 6A, pp.1399-1415.
https://search.emarefa.net/detail/BIM-626940

Modern Language Association (MLA)

al-Khazraji, Ahmad Nayif Ibrahim…[et al.]. Study the effect of the graphite powder mixing electrical discharge machining on creation of surface residual stresses for AISI D2 die steel using design of experiments. Engineering and Technology Journal Vol. 33, no. 6A (2015), pp.1399-1415.
https://search.emarefa.net/detail/BIM-626940

American Medical Association (AMA)

al-Khazraji, Ahmad Nayif Ibrahim& Amin, Samir Ali& Ali, Sad Mahmud. Study the effect of the graphite powder mixing electrical discharge machining on creation of surface residual stresses for AISI D2 die steel using design of experiments. Engineering and Technology Journal. 2015. Vol. 33, no. 6A, pp.1399-1415.
https://search.emarefa.net/detail/BIM-626940

Data Type

Journal Articles

Language

English

Notes

Text in English ; abstracts in English and Arabic.

Record ID

BIM-626940