The present report is documentation for the work carried out in Task 4 at DTU Physical modelling-validation on the Brite/Euram project No. BE96-3340, contract No. BRPR-CT97-0398, with the title Enhanced Framework for forging design using reliable three-dimensional simulation (EFFORTS). The report describes the work completed by DTU in general. The sub-tasks are: Subtask 4.1 Experimental Techniques Subtask 4.2 Cold forming Subtask 4.3 Warm/hot forming Subtask 4.4 Tests on complex industrial geometries.