Aerospace

Milling tools for your success

Thinking in solutions for the challenges of the aerospace industry
Pokolm Premiumtools branch is Aerospace.

Sustainable production approaches, automation and process reliability are current topics in the rapidly growing aerospace industry.

In addition to the digital transformation and improvements in terms of sustainability, many aerospace companies are also focusing on increasing efficiency while maintaining the highest quality and reducing costs.

In the field of metalworking, this means that often difficult-to-machine materials for landing gears, structural components or turbine blades must be processed reliably in a short period of time. Extremely tight manufacturing tolerances also require high-precision machining. Complex geometries also need to be produced. The sophisticated designs require innovative tools and milling strategies.

Titanium alloys, which are often used in structural components and landing gears, have high strength combined with low weight, but are also associated with high tool wear and the material's low thermal conductivity can lead to heat build-up at the cutting edge. Aluminum alloys are also lightweight materials with high strength. In contrast to titanium alloys, however, these alloys are easy to machine at high cutting speeds.

Nickel-based alloys for turbine blades are heat-resistant. The alloys retain their high strength even at high temperatures, which drastically increases tool wear. In addition, high cutting forces are required, which place a heavy load on the machines.

Challenges

  • Ein Rendering eines gefrästen Fahrwerkträgers.
  • Das Bild zeigt eine einzelne angefertigte Turbinenschaufel.

Structural component

A structural component, such as a frame or longitudinal member, is used to reinforce and stabilize the airframe in order to absorb aerodynamic and mechanical loads during flight. To ensure an optimum fit and functionality of the structural components, materials that are difficult to machine, such as high-strength aluminum or titanium alloys, must be machined at a high feed rate and complex geometric requirements must be milled with low manpower.

Turbine blade

A turbine blade is a high-precision component made of heat-resistant nickel-based alloys that converts the energy from hot exhaust gas flows into mechanical rotation. Its aerodynamic shape maximizes efficiency. The material has high strength and hardness combined with low thermal conductivity. During machining, low feed rates and cutting speeds are required to extend tool life.

Landing gear

A landing gear is a central component of the landing gear that carries the entire aircraft load and absorbs shocks during take-off, landing and taxiing. It is usually made of high-strength steel or titanium alloys and has a hydraulic damping system to minimize impact forces. High machining forces are required for precise machining. Extreme frictional heat is generated during machining due to the high cutting force.

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