Effect of Process Parameters on Angular Error in Wire-EDM Taper Cutting of AISI D2 Tool Steel
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 1
Abstract
WEDM Taper-cutting is a very unique machining process which can generate curved surfaces on work pieces and it is especially important in the manufacturing of tools that require draft angles. One of the most important application of wire electrical discharge machining (WEDM) process used in production of precise complex geometries with inclined surfaces in hard material parts that are extremely difficult to machine by conventional machining process. The objective of the present work is to find the effect of process parameters such as taper angle, pulse on time and pulse off time on response variables such as angular error and cutting speed by WEDM taper cutting on AISI D2 tool steel using statistical design of experiments. The experiments were designed using Response Surface Methodology (RSM) – Central Composite design (CCD) involving three variables with five levels. Regression models are developed to relate the responses with process parameters. Analysis of variance (ANOVA) is conducted to study the contribution of each parameter affecting the responses. Results show that taper angle is the most significant parameter affecting angular error and pulse on time is the most significant parameter affecting cutting speed.
Authors and Affiliations
K. L. Uday Kiran, K. Saraswathamma, A. M. K. Prasad, G. Chandra Mohan Reddy
Keywords
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