TY - JOUR
T1 - Surface modification of SKD 61 during EDM with metal powder in the dielectric
AU - Yan, Biing Hwa
AU - Lin, Yan Cherng
AU - Huang, Fuang Yuan
AU - Wang, Chen Hung
PY - 2001/12
Y1 - 2001/12
N2 - This study investigates the influence of process parameters of electrical discharge machining (EDM) on machining performances with the addition of Al and Cr powder into kerosene. In addition, the effects of powder addition on surface fine-finish and modification are also discussed. The machining process parameters of this empirical investigation included peak current, pulse duration, as well as the type of powder added, its grain size, and mixing ratio. The machining performance, characterized by material removal rate (MRR), electrode wear rate (EWR) and surface roughness, was monitored as a function of process variables. Moreover, surface modifications were also explored thoroughly. The experimental results demonstrate that addition of Al and Cr powders into the dielectric enlarges the gap distance and divides discharge current, which promotes better EDM performance. Restated, adding a mixture of Al and Cr powders into dielectric yields the best results. Moreover, during EDM, the added powder migrates and penetrates the machined surface. Test results reveal that the corrosion resistance and surface hardness was improved by adding the proper powder into dielectric.
AB - This study investigates the influence of process parameters of electrical discharge machining (EDM) on machining performances with the addition of Al and Cr powder into kerosene. In addition, the effects of powder addition on surface fine-finish and modification are also discussed. The machining process parameters of this empirical investigation included peak current, pulse duration, as well as the type of powder added, its grain size, and mixing ratio. The machining performance, characterized by material removal rate (MRR), electrode wear rate (EWR) and surface roughness, was monitored as a function of process variables. Moreover, surface modifications were also explored thoroughly. The experimental results demonstrate that addition of Al and Cr powders into the dielectric enlarges the gap distance and divides discharge current, which promotes better EDM performance. Restated, adding a mixture of Al and Cr powders into dielectric yields the best results. Moreover, during EDM, the added powder migrates and penetrates the machined surface. Test results reveal that the corrosion resistance and surface hardness was improved by adding the proper powder into dielectric.
KW - Dielectric
KW - Electric discharge machining (EDM)
KW - Material removal rate (MRR)
KW - Powder-suspended working fluid
KW - Surface modification
KW - Surface roughness
UR - http://www.scopus.com/inward/record.url?scp=0035715296&partnerID=8YFLogxK
U2 - 10.2320/matertrans.42.2597
DO - 10.2320/matertrans.42.2597
M3 - 期刊論文
AN - SCOPUS:0035715296
SN - 1345-9678
VL - 42
SP - 2597
EP - 2604
JO - Materials Transactions
JF - Materials Transactions
IS - 12
ER -