Analysis and Modeling of Electro Discharge Machining Input Parameters of Nitinol Shape Memory Alloy by De-ionized Water and Copper Tools

作者：Abedi Esmail^*; Daneshmand Saeed; Neyestanak Ali Akbar Lotfi; Monfared Vahid

来源：International Journal of Electrochemical Science, 2014, 9(6): 2934-2943.

DOI：10.1016/s1452-3981(23)07980-4

• Electro discharge machining
• Shape memory alloys
• Modeling
• Material removal rate
• Tool wear rate
• Surface roughness
• Nitinol
• Cu electrode

Nowadays, NiTi alloy is one of the shape memory alloys that its applications have grown in all industries. Its unique properties compared with some mechanical and thermo dynamical parameters lead in being applicable in industries such as aerospace, medicine and automobile. In the present study, EDM was modeled on NiTi alloy be means of de-ionized water and copper tools. EDM technique has different input parameters which influence on the outputs. Machining duration and process instability increase by experimental setting of input parameters. A mathematical modeling is required to make a precise relation between input and output parameters. The experiments were chosen by Design of Experiments (DOE)'s technique. Material removal rate and surface roughness were modeled with machining parameters and regression equations. The results were studied by variance analysis (AVOVA) and the most precise model was chosen as final model. Suggested model helps to find the parameters which have the most effects on material removal rate and surface roughness of NiTi alloy using de-ionized water and copper tools. Thus, material removal rate and surface roughness can be predicted.

• 出版日期2014-6