Surface Roughness Of Small Thickness In Edm Die Sinking Machine

Nurashakirin, Zulkefli (2011) Surface Roughness Of Small Thickness In Edm Die Sinking Machine. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The objective of this project is to optimize the machining parameters in die sinking electrical discharge machining in order to able the best parameter to get surface roughness via small thikcness in Die Sinker Electric Discharge Machine (EDM). Otherwise in machining process of a small and precision part is problematic due to the presence of high mechanical force in most of the manufacturing processes. Throughout the study, the significant machining parameters such as discharge current, pulse on time, pulse off time and circuit voltage will be investigated to measure the surface roughness. Full factorial design is used to design the experiment and relate the input variables to the reponse variables. A design with 16 experimental runs is generated by manipulating the selected generated in the design matrix will be used. By using a Design of Experiment of Full factorial, the result show that peak current are most the significant parameter effect surface roughness in small thickness EDM Die Sinking. It show when peak curent lower, the surface roughness fos small thickness in EDM is increase and in fine finish . The other parameter also give effect in this study but not to significant. From this study, the surface roughness is important to increase a quality for one sample or product.

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