Pusat Pengajian Kejuruteraan Mekanikal - Monograf

Browse

Now showing 1 - 1 of 1

A studying of piercing holes in sheet metal
(2002-03)
Akasyah bin Mohd Kathri
Piercing is ordinarily the Fastest method of making holes in steel sheet or strip and is generally the most economical method for medium-to-high production Pierced holes can be almost any size and shape. However, in very small holes such as 1/16 inch making, the conventional machining is not considerable. In this thesis, we will discuss about the technique of making holes using nontraditional machining such as electrical discharge machining, laser beam machining, electrostream drilling, and electrochemical jet machining. Nontraditional process drills small diameter holes and complex shape holes with higher production rate and economy, higher accuracy and dimensional. This thesis presents a mathematical model for determine the relationship between the machining rate and working condition of the method. This model describes a distribution electric field, current condition, machining rate, temperature rise (cause by heating) on the process performance, process capability and theoretical results is also presented.