Surface roughness optimization of new-generation WP7V tool steel in WEDM: a Taguchi and RSM approach
Küçük Resim Yok
Tarih
2025
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Emerald Group Publishing Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
PurposeThis study aims to optimize the surface roughness (Ra) of new-generation WP7V tool steel processed using wire electrical discharge machining (WEDM). The investigation identifies the most significant machining parameters and their effects using Taguchi and response surface methodology (RSM).Design/methodology/approachWP7V tool steel, a cold work tool steel with low thermal conductivity and excellent toughness, was processed using the Taguchi L18 orthogonal array and optimized through RSM. The input parameters were voltage (4-8 machine units/70-150 V), servo feed (SF) (60-100 mm/min), pulse-on time (Ton) (10-14 mu s) and pulse-off time (Toff) (13-18 mu s). Ra of the machined surfaces was measured using a Mahr MarSurf PS10 profilometer, and analysis of variance (ANOVA) was performed to determine the contribution of each parameter to Ra.FindingsTon and Toff were identified as the most critical parameters affecting Ra, contributing approximately 34% each. The optimal combination for achieving minimum Ra was determined as 150 V voltage, 100 mm/min SF, 10 mu s Ton and 13 mu s Toff. Predicted Ra values from Taguchi and RSM methods were validated against experimental results, showing strong agreement and reliability.Practical implicationsThe study demonstrates that optimizing WEDM parameters can significantly improve surface quality for new-generation WP7V tool steel. The results provide practical guidelines for engineers and manufacturers to achieve cost-effective, high-precision machining.Originality/valueThis work highlights the combined use of Taguchi and RSM methodologies for optimizing Ra in machining advanced WP7V tool steel. The findings enhance the performance and applicability of WEDM for processing new-generation tool steels. Studies on WEDM of WP7V steel are extremely limited in the literature, making this research a valuable contribution to the field.
Açıklama
Anahtar Kelimeler
New-generation cold work tool steel, Wire electro erosion discharge machining, Surface roughness, Taguchi, Response surface methodology, Optimization, Analysis of variance
Kaynak
Multidiscipline Modeling in Materialsand Structures
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
