Multi-Level Cavity Forming Analysis Using Fluid Forming Technique

Liquid hammer is a pressure surge or wave caused when a fluid (usually a liquid but sometimes also a gas) in motion is forced to stop or change direction suddenly which also involves a momentum change. This process generates shock waves which reach the sheet metal kept at a lower part of the cylinder and deform it to the shape of the die placed below the sheet metal.The process variables that were considered which affect deformation are the thickness of the specimen, height of drop hammer, number of blows and weight of the drop hammer.In this work Response Surface Methodology(RSM) is used as a tool for optimization of process parameters using Design Expert Software.Further force and strain analysis are performed for the deformed specimens.