• Viral M. PATEL

Electrical steel sheets are used for the cores of motors and small transformers, and the use of such steel sheets featuring low iron loss is an effective way of reducing energy loss in motors. The laminations for magnetic cores used in such electrical appliances are manufactured by punching, mechanical cutting or cutting by laser of coils of electrical steels. The magnetic material close to the cutting edge is essentially influenced by these processes. To reach optimum magnetic properties of the material after cutting, choice of a cutting method, which does not deteriorate these properties during the cutting process is important. Ultrasonic machining (USM) was developed primarily for machining of hard and brittle materials without imparting any deleterious effects on work material. However, it has been proved to be effective in machining hard and brittle material, range of ultrasonic machining process in terms of material to be machined is all-embracing, whether conductive or non- conductive, metallic, ceramic or composite. From literature review, number of machining parameters are identified affecting the process out of which few parameters like amplitude, pressure and plate thickness are selected as variable factors considering the feasibility of parameter variation. Material Removal Rate (MRR), Linear Tool Wear (LTW) and the Radial Overcut (ROC) is taken as response parameters. Experiments are carried out with different combination of levels of machining parameters and corresponding response characteristics are observed and analyzed. Their effect on the response parameters are also investigated electrical steel and mathematical relationship between process parameter and response is also attempt to be develope for prediction of process output.

material removal rate, Ultrasonic machining, electrical steel, tool wear rate, radial over cut.

"Parametric Investigation on Ultrasonic Machining of Electrical Steel", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.227-238, April-2019, Available :http://www.jetir.org/papers/JETIR1904F39.pdf

"Parametric Investigation on Ultrasonic Machining of Electrical Steel", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp227-238, April-2019, Available at : http://www.jetir.org/papers/JETIR1904F39.pdf