Open die forging is a metal forming process that is often used to manufacture large or complex-shaped metal parts, such as turbine blades. In this process, a metal blank is forged between a pair of open dies and formed by hammering or compression. The main feature of open die forging is that there is no fixed die shape, which allows large deformation and material flow, so that complex geometries can be manufactured.
Due to the recrystallization and grain refinement of the material during the open die forging process, the turbine blade has higher strength and toughness.
Compared with cutting, open die forging can more effectively utilize materials and reduce waste. Strong adaptability: The open die forging process can handle a variety of materials and can manufacture parts with complex shapes, and has strong adaptability.
The temperature inside the engine is very high, and the turbine blade needs to be able to work for a long time at high temperatures.
To withstand high-speed rotation and huge centrifugal forces.
The material is prone to oxidation and corrosion at high temperatures, and needs to have strong corrosion resistance.
Long-term operation in a high-temperature and high-pressure steam environment requires blades to have good anti-oxidation and corrosion resistance.
Turbojet engine: used in commercial and military aircraft, turbine blades work under high pressure and high temperature to drive compressors and fans.
Turboprop engine: used in turboprop aircraft, turbine blades drive propellers to generate thrust.
Helicopter engine: used to provide lift and propulsion, turbine blades operate under extreme conditions, requiring high reliability and durability.
Gas turbine: used in gas power plants, the heat energy generated by burning natural gas or other fuels drives the turbine blades to rotate, which in turn drives the generator to generate electricity.
Steam turbine: used in nuclear power plants and fossil fuel power plants, steam expands through the turbine blades to drive the turbine to rotate and generate electricity.
Turbine compressor: used for natural gas transportation and processing, turbine blades compress gas to increase pressure.
Expander: In natural gas liquefaction and other processes, turbine blades generate energy through gas expansion.
Turbocharger: Used in automobiles, ships and industrial engines, it improves combustion efficiency by compressing the intake air, and the turbine blades use the exhaust gas to drive the compressor.
Industrial turbine: Used to drive industrial equipment such as compressors and pumps, providing efficient power output.
Ship propulsion: Used in propulsion systems for marine engineering and warships, turbine blades drive propellers through gas or steam.
Ocean energy utilization: In wave energy and tidal energy power generation systems, turbine blades drive generators through water flow.
Turbocharger: Widely used in internal combustion engines, it increases the intake volume by compressing air, improving engine efficiency and power output.
Titanium alloy, Inconel, Hastelloy, Nimonic, Monel These materials all have some characteristics that make them suitable for free forging to make turbine parts. The specific reasons are as follows:
It has high strength, low density and good corrosion resistance. These properties make turbine parts made of titanium alloy have advantages in strength and weight, while being able to resist corrosion and wear.
Excellent high temperature strength, oxidation resistance and corrosion resistance. Inconel can maintain its performance in high temperature environments and is suitable for the application of turbine parts in high temperature, high pressure and corrosive media.
Excellent corrosion resistance, especially in strong acid, strong alkali and high temperature environments. Turbine parts made of Hastelloy can work in harsh chemical environments and have a long service life.
Good high temperature performance and mechanical properties. Nimonic is suitable for turbine parts at high temperatures and can provide the required strength and durability.
Monel has good corrosion resistance and certain mechanical properties. It can be used in some specific working conditions, such as in marine environments or sulfur-containing media
Advantages: high strength and hardness can be achieved through aging treatment, with good toughness and processing performance.It can be used in aircraft engine parts
High strength and durability
Excellent fatigue performance
Complex shape manufacturing capability
Material diversity
