Surface Characterization of Electric Discharge Machined Surface of High Speed Steel

Mannan, Khalid; Krishnaiah, Arkanti; Arikatla, Siva Prasad

doi:10.11127/ijammc.2013.02.028

Cited by 6 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Higher residual stresses are developed at longer duration of pulse. Mannan et al (2012) in their research found the abundance of cracks on EDMed surface due to higher value of peak current and pulse on time. They also concluded that cracks are associated with high thermal stresses exceeding fracture strength of the material.…”

Section: Introductionmentioning

confidence: 94%

Modeling of Residual Stress and Surface Damage of AISI 4340 using Copper Tungsten T ool in Die S inking EDM

Rizvi*,

Bharti,

Agarwal

2019

IJEAT

View full text Add to dashboard Cite

The present work concentrates on the modeling of the residual stress and cracks induced during the machining of AISI 4340 in die-sinking EDM. Response surface methodology with rotatable central composite design is used with peak current, pulse on duration, voltage and pulse duty factor as process parameters. The relation between these process parameters and induced residual stress and cracks is established. The results of ANOVA elucidates that the present model is significant. Voltage and pulse on time are observed to have major dominance on residual stress. The SEM images reviled that micro-cracks resulted from the thermal stresses developed during machining of the workpiece. At higher levels of pulse on duration, wider cracks are observed due to high thermal gradients.

show abstract

Section: Introductionmentioning

confidence: 94%