Observations of barrelling in aluminium solid cylinders during cold upsetting using different lubricants; Observations on fracture in axi-symmetric and three-dimensional cold upsetting of brass; Parallel processing of 3D rigid-viscoplastic finite element analysis using domain decomposition and modified block Jacobi preconditioning technique; Parameter study into the friction welding of the intermetallic TiAI and the alloy Ti6AI4V