Aerospace

The aerospace industry recognised the benefits of the flow-forming procedure many years ago and applied it increasingly in many different components. Drive shafts for airplane drives and helicopters, pressure accumulators, hydraulic cylinders for chassis and other applications, as well as control nozzles for satellite motors have been produced by way of flow-forming – the state of the art for years.

Drive shafts for jet engines

Forming shafts in the hardened condition to the finished part’s dimensions eliminates the otherwise-present distortion when tempering and dramatically reduces the costs for balancing. The high precision of spinning roller technology permits the design of wall thicknesses very close to the theoretic minimum with the result of lowest component weights and imbalances. Tempered steels of all kinds and highly temperature-resilient steels are used for this.

» see the production

Drive shafts for helicopters

Tail rotor drive shafts made of titanium, stainless steel or aluminium are ideal components for flow-forming procedures. The shafts are up to 13.12 ft long, have a wall thickness of 0.04 – 0.12 inch and pose high demands for straightness and concentricity. The precise flow-forming procedure permits producing these shafts with a wall thickness tolerance of less than 0.002 inch and a concentricity of inner- to outer diameter of less than 0.001 inch. Different wall thicknesses within a shaft can be implemented easily and material utilization is up to 97 %.

» see the production

Hydraulic cylinders

Cylinders and pistons with an integrated piston rod for landing gears and actuators for doors or other applications are made of stainless steel, such as 15-5 PH. The cold forming process reduces material loss by more than 60% as compared to conventional mechanical machining. Integration of connections and other applications can reduce the number of components in any one cylinder, which saves assembly effort and weight.
Weight-optimised cylinder pipes and piston rods with integrated pistons that have a component length of up to 6.56 ft can be produced efficiently by the flow-forming procedure.
Final processing into components ready for installation takes place on state-of-the-art turning and milling machines.

» see the production

Accumulators, pressure vessels, filter housings

Housings of stainless steel, aluminium or thin-walled sleeves, sometimes wrapped with carbon fibre for pressure accumulators and other housings can be produced by way of flow-forming in many different forms and wall thicknesses.

» see the production

Cones, nozzles

Seamless cones, housings and nozzles of niobium, tantalum, titanium, Inconel or other heat-resilient materials are produced from sheet metal by way of conic flow-forming, referred to as “shear-forming”. Extremely thin wall thicknesses in the area of 0.008-0.02 inch, as well as wall thicknesses of up to 0.39 inch, can be produced with outstanding surface qualities and highest accuracy in contour and wall thicknesses.

» see the production
  • Drive shafts for jet engines

    Forming shafts in the hardened condition to the finished part’s dimensions eliminates the otherwise-present distortion when tempering and dramatically reduces the costs for balancing. The high precision of spinning roller technology permits the design of wall thicknesses very close to the theoretic minimum with the result of lowest component weights and imbalances. Tempered steels of all kinds and highly temperature-resilient steels are used for this.

    » see the production
  • Drive shafts for helicopters

    Tail rotor drive shafts made of titanium, stainless steel or aluminium are ideal components for flow-forming procedures. The shafts are up to 13.12 ft long, have a wall thickness of 0.04 – 0.12 inch and pose high demands for straightness and concentricity. The precise flow-forming procedure permits producing these shafts with a wall thickness tolerance of less than 0.002 inch and a concentricity of inner- to outer diameter of less than 0.001 inch. Different wall thicknesses within a shaft can be implemented easily and material utilization is up to 97 %.

    » see the production
  • Hydraulic cylinders

    Cylinders and pistons with an integrated piston rod for landing gears and actuators for doors or other applications are made of stainless steel, such as 15-5 PH. The cold forming process reduces material loss by more than 60% as compared to conventional mechanical machining. Integration of connections and other applications can reduce the number of components in any one cylinder, which saves assembly effort and weight.
    Weight-optimised cylinder pipes and piston rods with integrated pistons that have a component length of up to 6.56 ft can be produced efficiently by the flow-forming procedure.
    Final processing into components ready for installation takes place on state-of-the-art turning and milling machines.

    » see the production
  • Accumulators, pressure vessels, filter housings

    Housings of stainless steel, aluminium or thin-walled sleeves, sometimes wrapped with carbon fibre for pressure accumulators and other housings can be produced by way of flow-forming in many different forms and wall thicknesses.

    » see the production
  • Cones, nozzles

    Seamless cones, housings and nozzles of niobium, tantalum, titanium, Inconel or other heat-resilient materials are produced from sheet metal by way of conic flow-forming, referred to as “shear-forming”. Extremely thin wall thicknesses in the area of 0.008-0.02 inch, as well as wall thicknesses of up to 0.39 inch, can be produced with outstanding surface qualities and highest accuracy in contour and wall thicknesses.

    » see the production

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