Home>Industry>Aerospace Industry
Vacuum brazing is a vital process in the aerospace industry, where precision, strength, and reliability are non-negotiable. It is extensively used in the production of turbine blades, heat exchangers, fuel system components, jet engine parts, and structural assemblies that must withstand extreme temperatures and mechanical stress. The process enables the joining of dissimilar metals and intricate assemblies without the use of flux, eliminating the risk of contamination and ensuring the highest levels of cleanliness. This is crucial in aerospace applications, where even microscopic impurities can compromise performance or safety.
Titanium is widely used in aerospace engineering due to its high strength-to-weight ratio and excellent corrosion resistance. However, during cold working and forming, titanium accumulates internal stress, leading to brittleness or deformation failure.
READ MORE
TC4 (Ti-6Al-4V titanium alloy) is valued for its excellent strength-to-weight ratio and corrosion resistance, while 4J29 (Kovar alloy) offers controlled thermal expansion and outstanding hermetic sealing properties.
READ MORE
One of the most significant challenges is the welding of Kovar alloy—an iron-nickel-cobalt alloy with a controlled thermal expansion coefficient—and alumina ceramics, widely used for their excellent electrical insulation and thermal stability.
READ MORE
Unlike mechanical clamping or sintering, vacuum brazing securely bonds the PCD tip to a WC (tungsten carbide) or steel tool body which provide a strong metallurgical joint to withstand high cutting forces and vibrations.
READ MORE