Powder Metallurgy Material Application
Brake pads, clutch friction plates, loose-pore filters, porous sweating materials, oil-containing bearings, magnetic cores, electrical contacts, high-density alloys, cemented carbides and super-hard wear-resistant parts on aircraft engines cannot be manufactured using ordinary casting and forging processes because they contain a large amount of non-metallic components or interconnected pores. They can only be manufactured using powder metallurgy processes such as cold pressing and sintering with powder as raw materials.
The more important powder metallurgy materials used in the aerospace industry are brake pad materials, loose-pore materials and high-strength powder alloys.
Brake Pads
Brake pads are the core of aircraft wheel brakes. Modern aircraft have a landing speed of more than 200 km/h, and the brake load is very large. The instantaneous temperature of the brake pad surface can reach 800-1000°C, and adhesion is not allowed to occur, so as to avoid tire burst due to brake failure. Powder metallurgy brake pads made of iron powder or copper powder as the main component and non-metallic powders for friction and adhesion prevention can meet this requirement.
Most military and civilian aircraft use powder metallurgy brake pads. Because wear occurs every time you brake, the brake pads need to be replaced after 100-500 times, so it is the most used powder metallurgy material part on the aircraft. Powder metallurgy materials.
Loose Hole
Porous permeable powder metallurgy materials. Bronze or stainless steel filters used in turbine engine lubrication systems and aircraft hydraulic control systems are important components to prevent particle blockage and stagnation. Metal fiber loose hole materials have good strength and plasticity and can be used in high-temperature parts, such as high-temperature alloy felt belts for turbojet engine tip seal rings and rocket engine injector panels, combustion chamber inner walls and throat sweating cooling loose hole materials.
Alloys
Fully dense high-temperature alloys, aluminum alloys and titanium alloys formed by powder hot forming.
Some modern aircraft engines have used forged powder high-temperature alloy turbine disks and compressor disks. In order to save raw materials and save the forging process, hot isostatic pressing precision forming can also be performed directly. Dispersion-strengthened high-temperature alloys and rapidly solidified powder high-temperature alloys made by mechanical alloying methods can exceed the strength of directional solidification alloys above 1000-1050°C, and are good materials for making guide blades and turbine blades. Powder aluminum alloys are mainly used as aircraft and engine structural materials.
The strength of mechanically alloyed aluminum alloys and rapidly solidified powder aluminum alloys can reach 700 MPa (about 70 kgf/mm). The specific strength reaches the level of titanium alloys and ultra-high strength steels, and the operating temperature can reach 250-300°C, which expands the application range of existing aluminum alloys. Rapidly solidified aluminum-lithium alloys have a specific stiffness 30% higher than deformed aluminum alloys and a specific strength twice as high. If they replace aluminum alloys, the weight of aircraft can be reduced by more than 30%.
|
Material |
Density |
Hardness |
Stretchability |
Yield strength |
Elongation |
|
304L |
≥7.8g/cm² |
≥120 HV10 |
≥500MPa |
≥180MPa |
≥50% |
|
316L |
≥7.8g/cm² |
≥120 HV10 |
≥500MPa |
≥180MPa |
≥50% |
|
310 |
≥7.6g/cm² |
≥45HRA |
≥782MPa |
≥436MPa |
≥18% |
|
17-4PH |
≥7.7g/cm² |
HRC15-25 |
≥960MPa |
≥730MPa |
≥5% |
|
440C |
≥7.50g/cm² |
HRC30-40 |
≥600MPa |
≥250MPa |
≥8% |
|
420W |
≥7.50g/cm² |
HRC30-40 |
-- |
-- |
-- |
|
430 |
≥7.45g/cm² |
100-150HV |
-- |
-- |
-- |
|
SKD11 |
≥7.50g/cm² |
HRC30-40 |
-- |
-- |
-- |
|
8620 |
≥7.45g/cm² |
HRC20 |
-- |
-- |
-- |
|
4140 |
≥7.45g/cm² |
HRC20 |
-- |
-- |
-- |
|
1010 |
≥7.50g/cm² |
150HV |
-- |
-- |
-- |
|
Fe2NiO.5Mo |
≥7.55g/cm² |
≥150HV |
-- |
-- |
-- |
|
Fe4NiO.5Mo |
≥7.55g/cm² |
≥150HV |
-- |
-- |
-- |
|
Fe8NiO.5Mo |
≥7.55g/cm² |
90-140HV |
-- |
-- |
-- |
Application
Product Description
|
Products Name |
OEM metal powder metallurgy service |
|
Material |
Metal: Stainless Steel, Brass,Copper, Brozone, Aluminum, Steel, Carbon Steel etc |
|
Precision Processing |
CNC machining ,laser cutting service, stamping, deep drawning, bending, Plastic Injection, Stamping, Die Casting, Silicone And Rubber, Aluminum Extrusion |
|
Surface Treatment |
Anodizing, Sandblasting, Painting, Powder coating, Plating, Silk Printing, Brushing, Polishing, Laser Engraving |
|
Drawing Format |
jpg/.pdf/.dxf/.dwg/.igs./.stp/x_t. etc |
|
Tolerance |
0.003mm-0.01mm |
|
Quality Assurance |
- Technicians self-check in production - Engineer spot check in production - QC inspect after products finished |
|
Moq |
1pcs |
|
Payment Terms |
TT/Paypal / Western Union / VISA (30% in advance, 70% balance before shipment) |
|
Shipment |
By express ( DHL/FEDEX/UPS/EMS/TNT.etc) |
|
Delivery Time |
3~7 working days |
|
Production Time |
2~10 working days |
|
Application |
Aerospace, Electric Vehicles, Firearms, Hydraulics and Fluid Power, Medical and Dental, Oil and Gas and many other demanding industries |
Company Profile
BSH was established in 2015. Our company located in Songgang Town, Baoan district, Shenzhen, China.We are mold designer,provide additional services ( CNC machining, MIM ,Injection,die casting ,polishing, deburring, sanding, drilling, tapping and so on ) To meet our customer's specifications. We also supply all kinds of surface treatment(painting, anodizing, power coating ,sand blast, chrome plating etc.). Now the factory is with 5000 square meter, company total assets is 15 million RMB ,and a staff of nearly 150 members and workers, among which there are 12 engineers and over 50 senior technicians, who can make 3D designing and technical drawings with CAD/ CAM/ CAE according to our customers' requirements , and use CNC Processing Center, EDM center, 3-coordinate measurer, NC imitating milling machine, large precision EDM, high-speed milling machines, spot machine, wiring machine and so on.
The Business Scope
Company Scale: Founded in 2004, the total assets of 20 million RMB. Covers an area of about 10000 square meters, owns more than 150 employees. Annual turnover of about 50 million RMB;
Zinc, aluminum alloy die-casting mold development and production.
Zinc, aluminum alloy die casting parts;
CNC computer gongs, precision machining, CNC CNC machining center, drilling, tapping, punching machine, batch of feng, grinding and polishing machining, plastic injection and MIM.
Surface treatment (fully automatic dust-free workshop electrostatic spray, spray powder, sand blasting, vibration grinding, etc.
One-stop processing services!
The company has passed ISO9001:2008 quality system certification.
Test Equipment
Packing & Delivery
Bubble bag & Cardboard K=K Carton Box Pallet/ Wooden Box
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