Titanium Parts For Aerospace
Wstitanium is a trusted aerospace titanium parts manufacturer in China.
- ISO 9001:2016 Certified
- ISO 13485:2015 Certified
- 24/7 Engineering Support
- Tight Tolerance: +/- 0.005mm
CNC Machining Aerospace Titanium parts
CNC Machining Aerospace Titanium Parts
Aerospace Titanium Parts Manufacturer
Titanium parts have become a key core material in the aerospace industry due to their excellent high strength-to-weight ratio, excellent corrosion resistance, and good high-temperature performance characteristics. From aircraft engines and fuselage structures to various precision components of satellites, titanium parts are everywhere. As a trusted aerospace titanium parts manufacturer in China, Wstitanium has established an excellent image in the aerospace field with its advanced manufacturing technology, strict quality control system, continuous technological innovation capabilities, and professional technical team.
Manufacturing Technology of Aerospace Titanium Parts
The manufacturing technology of aerospace titanium parts is a complex and systematic project, covering smelting, casting, forging, rolling, CNC machining, surface treatment, etc. The precision, surface quality and performance consistency of aviation titanium parts are crucial. For example, the blades of aircraft engines have complex shapes and extremely high requirements for aerodynamic performance. Any slight error in the manufacturing process may lead to a decline in engine performance or even cause a safety accident. At present, the proportion of titanium applications in the aviation field is gradually increasing. Wstitanium’s manufacturing technology is of great significance for improving the performance of aerospace parts, reducing costs and ensuring safety.
Vacuum Arc Remelting (VAR)
Wstitanium uses advanced vacuum consumable arc furnace melting technology to make sponge titanium into consumable electrodes. In a high vacuum environment, the consumable electrode is gradually melted by powerful arc heating, and the molten droplets fall into a water-cooled copper crucible under gravity and quickly solidify into high-quality titanium ingots. This melting method can effectively remove impurities, accurately control the alloy composition, and ensure the purity and uniformity of the titanium ingot.
Electron Beam Cold Hearth Melting (EBCHM)
Wstitanium has invested in electron beam cold hearth furnace melting technology. The unique design of the cold hearth furnace helps to further remove impurities and gases, and produce titanium ingots of better quality. EBCHM technology can not only produce super-large titanium alloy ingots to meet the manufacturing needs of large aviation parts, but also significantly improve the comprehensive properties of titanium alloys, such as strength, toughness and fatigue performance.
Casting
Titanium alloy casting mainly includes investment casting, sand casting, etc. Investment casting is currently one of the most widely used methods for casting titanium aviation parts. It can produce parts with complex shapes and high dimensional accuracy. First, a wax mold of the part is made, and then multiple layers of refractory materials are coated on the surface of the wax mold to form a shell. After the wax mold is melted and removed, the titanium alloy liquid is poured into the shell under high temperature and vacuum or inert gas environment. After cooling and solidification, the desired near-net-shape parts can be obtained. Sand casting is suitable for manufacturing some titanium aviation parts with relatively simple shapes and large sizes.
Forging
Forging is one of the important methods to improve the mechanical properties of titanium alloys. The structure of titanium alloys after forging is denser, casting defects are eliminated, and the strength, toughness and fatigue performance of the material are improved. For titanium aviation parts with extremely high precision and performance requirements, Wstitanium uses isothermal forging technology. The mold and the billet are heated to the same temperature and kept constant throughout the forging process. Isothermal forging can not only significantly improve the dimensional accuracy and surface quality of the forgings, but also further optimize the microstructure of the material and improve the comprehensive performance of the parts.
Rolling
Rolling is the process of rolling titanium alloy ingots into plates, strips, tubes and profiles through a rolling mill. According to the different rolling temperatures, it can be divided into hot rolling and cold rolling. Hot rolling is carried out at high temperatures and is mainly used to produce large-sized plates and profiles. Cold rolling is carried out at room temperature and is mainly used to produce thin plates and high-precision strips. Cold rolling can further improve the strength and surface quality of the material. In order to meet the demand for high-precision titanium alloy plates and strips in the aerospace field, Wstitanium has introduced advanced cold rolling technology. In order to eliminate work hardening, titanium plates are usually annealed after cold rolling.
CNC Machining
Wstitanium is a manufacturer of CNC machining aerospace titanium parts. Faced with the high performance and high precision requirements of titanium parts in the aerospace industry and the many challenges in the processing process, with its outstanding technologies in planning, tool selection and application, cutting parameter optimization, cutting fluid use and quality control, it helps the global aerospace industry achieve safer, more efficient and sustainable development.
In particular, the optimization of cutting parameters is the key link for Wstitanium to improve machining efficiency and quality. The cutting speed of carbide tools is controlled at 30-80m/min, ceramic tools at 80-200m/min, and CBN tools at 200-500m/min; the feed rate is reasonably determined, 0.1-0.3mm/z for roughing, 0.05-0.15mm/z for semi-finishing, and 0.02-0.08mm/z for finishing; the cutting depth is scientifically set, 3-5mm for roughing, 0.5-1.5mm for semi-finishing, and 0.05-0.1mm for finishing.
EDM/WEDM Machining Aerospace Titanium Parts
For some titanium aerospace parts with complex shapes and high precision requirements, traditional CNC machining is difficult to meet the requirements. At this time, EDM or wire cutting technology is needed. EDM uses the high temperature generated by discharge to erode metal, thereby achieving precision machining of parts. By controlling the discharge parameters, such as discharge current, discharge time, pulse interval, etc., the processing size and shape can be accurately controlled. EDM is suitable for manufacturing various complex cavities, micropores and extremely complex geometric parts, and is widely used in the manufacture of key components such as aircraft engine combustion chambers and turbine blades.
Finishing Services For Aerospace Titanium Parts
As a technology that can significantly improve the surface properties of titanium parts, surface treatment plays an important role in the aerospace field. It can not only improve the wear resistance, corrosion resistance, fatigue strength, etc. of parts, but also give special functionality, such as anti-oxidation and heat insulation. For example, aerospace titanium parts are easily corroded by media such as oxygen, water vapor, and salt spray. This will destroy the surface integrity of the parts and reduce their mechanical properties, seriously threatening flight safety. For example, anodizing can generate a dense protective film with good corrosion resistance on the surface of titanium parts, thereby improving the corrosion resistance of the parts.
Anodizing
The oxide film formed by anodizing has good corrosion resistance, wear resistance and insulation. The thickness is generally between 5-25μm, and the hardness can reach HV300-500, which can effectively improve the surface hardness and wear resistance of titanium parts. Anodizing is often used for titanium alloy fasteners.
Thermal Spraying
Thermal spraying can prepare coatings with various properties on the surface of titanium parts, such as ceramic coatings with high hardness, high temperature resistance, wear resistance, heat insulation and other properties, extending the service life of the parts. . The coating thickness can generally be between 0.1-5mm.
Chemical Plating
Chemical plating can obtain a uniform and dense coating on the surface of titanium parts. The thickness is generally between a few microns and tens of microns. The hardness of chemical nickel plating can reach HV500-1000, and the hardness can be further improved after heat treatment.
Aerospace titanium parts manufacturing technology is a key driving force for the development and progress of the aviation industry. Traditional technologies such as vacuum arc furnace melting (VAR), electron beam cold hearth furnace melting (EBCHM), forging, rolling, casting, CNC machining, etc. are constantly optimized and upgraded. At the same time, looking to the future, the popularity of additive manufacturing technologies such as selective laser melting (SLM) has brought revolutionary changes to the manufacturing of aviation titanium parts, realizing the integrated manufacturing of complex structures, improving material utilization, and shortening product development cycles.