Forming simulation for components of low beta spoke resonator

R and D activities have been taken up for development of 1 GeV superconducting proton/ H^- ion linac for proposed Indian Spallation Neutron Source (ISNS). The low energy part of superconducting linac will be built using threes families of 325 MHz spoke resonator of different β_g value. These cavities will be used to accelerate the H^- beam from 3 MeV to 160 MeV. The first type of spoke resonator, beta 0.11 will be used to accelerate the beam from 3 MeV to 10 MeV. Major components of cavity are manufactured by deep drawing process. In this paper, design analysis of forming of end wall, spoke, shell pull out for vacuum and power coupler port and spoke to shell collar will be presented. The blank size has been estimated using one-step blank development methodology. During the simulation, tool geometry, binding force, blank size etc. are varied to minimize thinning, wrinkling, developed stress and strain etc. on formed component. Spring back during forming simulation of each components of spoke resonator has also been estimated and tried to reduce it by modifying tool geometry. Forming analysis for various components will be presented in this paper. (author)