The LAMINTU Project Is innovative process development and new equipment for manufacturing by rotating lamination of complex geometry tubes born from the current needs identified by the DENN and Tecnalia consortium in international companies that use seamless pipe in applications for sectors such as: Oil & Gas, Nuclear Energy, Defense, Aeronautics,Participants: Industrias PUIGJANER, S.A. (DENN) is a SME founded in Barcelona in 1885. It holds the oldest machine manufacturing license in the Spanish State. It is a machine tool company of deformation technologies and is one of the world’s largest producers of tube repulsing, laminating and closing machines. Tecnalia the largest research center in the country.The division of TECNALIA that takes part in the project is the Industry and Transport Division. This working group includes within its activities the design, study and improvement of multiple processes of metal forming DENN and Tecnalia, join efforts in this project to provide a solution to one of the current social challenges such as climate change and the efficient use of natural resources. This consortium tries to respond to this need by developing a deformation technology and equipment that overcomes the current limitations of the manufacturing process of forged tubes and laminated rings. To carry out this objective, a new product (special machine) will be developed and will generate new knowledge of the process and materials as well as the manufacturing methodology that allows to reduce the use of raw materials (shails and super alloys) and the energy consumed. Currently there are applications where forging tubes require a much lower final wall thickness than that obtained by hot forming processes. For this reason, costly and long machining operations are required with the consequent waste of material. The minimum thickness of large forged or extruded tubes is between 65-100 mm and its final application in some cases ranges from 10 to 20 mm. Also in the case of the height of the laminated rings (ring rolling process) there are limitations in the ring height of around 2 000 mm for final applications that require in some cases more than double this length. LAMINTU proposes to solve this challenge by developing a machine and a new process that obtains products of the final thickness required from tubes or rings forged through the deformation of the material (steel or special alloys) without little waste of raw material. The process of lamination by rotation of tube or rings (cylindrical lamination or flowforming) is a process of the so-called incrementals that consists of starting from an anterior preform (forged, stamped, rotation laminated, extruded part) that is introduced into a mandrino that rotates and by 2-3 rollers or rollers is reduced in thickness and increases its length in a controlled way, obtaining very precise wall thicknesses and with close tolerances. Denn and Tecnalia will try to provide a joint solution by replacing current manufacturing processes with more innovative and efficient ones with the environment in terms of resources: rotation lamination instead of machining. Material deformation technologies, rather than material removal processes such as machining or drilling, lead to products of better end properties, allowing for tighter designs, more environmentally efficient processes and lower cost. Denn’s leading manufacturer of this type of machines for conventional applications, has detected the existing interest in the market that would allow a Spanish company to gain the scientific technological leadership of this technology.