Professional Diffusion Bonding Services
FARWARDER diffusion bonding is a solid state diffusion bonding that connects two or more independent parts in a vacuum environment by applying a high temperature lower than the melting point of the base material and a certain high pressure, without filler or melting the base metal, and the microscopic atomic contact of the welding surface of the parts forms a atomic diffusion bonding.
FARWARDER diffusion bonding is not only suitable for homogeneous metal diffusion bonding (such as aluminum and aluminum, titanium and titanium), but also for heterogeneous metal diffusion bonding (such as copper and steel). It can meet your multi-combination metal diffusion bonding needs. At the same time, the strength of its welded joint can reach 90% of the strength of the parent material, which is equivalent to the strength of the parent material. The welding-on rate can reach more than 95%, the deformation is very small or no deformation, and high-precision special diffusion bonding can be achieved.
Compared with brazing, diffusion bonding does not require filler and has a higher welding-on rate. Especially for materials that are difficult to weld by traditional welding methods, vacuum diffusion bonding has obvious advantages, so it is often used in high-precision micro-parts processing, such as water cooling plate, liquid cooling plate, waveguide plate, radiator, plate heat exchanger, fin heat exchanger, micro medical equipment. The application fields cover the aerospace industry, electronics industry, medical industry, energy industry, and instrumentation industry.
As long as you provide a quotation drawing, we will arrange technicians to give you a quotation within 24 hours to ensure that the product price, product quality and delivery cycle meet your requirements!
Products by Material
FARWARDER’s diffusion bonding process is not only suitable for homogeneous metal diffusion bonding(such as aluminum diffusion bonding, titanium diffusion bonding, copper diffusion bonding, stainless steel diffusion bonding), but also for heterogeneous metal diffusion bonding (copper-steel), which can meet your rich needs.
Products by Features
The parts that FARWARDER’s diffusion bonding service can manufacture for you are classified into various types according to their features, mainly including rudder bodies, liquid cooling plates, waveguide plates, aluminum radiators, plate heat exchangers, heterogeneous metal welding structures, etc.
Diffusion Bonding Rudder Body
Diffusion Bonding Liquid Cooling Plate
Diffusion Bonding Waveguide Plate
Diffusion Bonding Aluminum Radiator
Diffusion Bonding Plate Heat Exchanger
Diffusion Bonding Parts of Heterogeneous Metals
Diffusion Bonding Machine
The maximum effective heating area of FARWARDER’s diffusion bonding machine is 600*600*450mm, which can not only weld large parts with a length of 600mm, a width of 600mm and a height of 450mm, but also realize batch welding of micro parts. Whether you need diffusion bonding of a single large part or batch bonding of micro parts, FARWARDER can meet your needs.
The maximum temperature of FARWARDER’s diffusion bonding machine can reach 1700℃, the pressure can reach 500T, and the ultimate vacuum degree is ≤6.6*10-4Pa, which determines that FARWARDER can weld a variety of high melting point materials to meet your diverse needs.
The cooling method of FARWARDER’s diffusion bonding process is argon rapid cooling, which not only plays the role of inert gas to protect the substrate, but also improves the welding efficiency, thereby meeting your delivery time.
Diffusion Bonding of Materials
FARWARDER’s common materials for diffusion bonding are aluminum, steel, copper, and titanium. Its process is not only suitable for homogeneous metal diffusion bonding (such as aluminum and aluminum, titanium and titanium), but also for heterogeneous metal diffusion bonding (such as copper and steel), which can meet your diverse needs for metal diffusion bonding.
Of course, if you have needs for welding new materials such as heat-resistant alloys, ceramics, and composite materials, please contact us. Our welding engineers will communicate with you technically and continuously optimize the process to meet your needs.
Diffusion Bonding Process and Customized Diffusion Bonding Services
FARWARDER’s diffusion bonding process is as follows:
FARWARDER Welding Technology Center will design the fixture and welding process according to your part materials and performance requirements, and provide you with customized diffusion bonding services.
Diffusion Bonding Parts Classification and Application
FARWARDER’s diffusion bonding parts are diversely classified, and their application areas cover the aerospace industry, electronics industry, medical industry, energy industry, and instrumentation industry. Our main products are as follows:
- Rudder body for aerospace
- Liquid cooling plate
- Aluminum radiator, stainless steel radiator, copper radiator
- Flat plate heat exchanger (aluminum heat exchanger, stainless steel heat exchanger, micro heat exchanger, fin heat exchanger)
- Waveguide plate
- Heterogeneous metal diffusion bonding structural parts
If your welding parts have the above characteristics, if your parts are materials that are difficult to weld with other traditional welding methods, if you are looking for a high-precision, high-strength, high-welding rate diffusion bonding supplier, please contact us! As long as you can think of it, we can do it for you!
Diffusion Bonding Quality Control
The inspection items provided by FARWARDER Diffusion Bonding include appearance quality inspection, joint tensile testing, ultrasonic welding-on rate testing, pressure resistance testing, and microscopic metallographic testing. We can issue you with inspection reports and process inspection record quality certification documents to ensure quality traceability, lifetime warranty, and lifetime technical support.
Diffusion Bonding VS Brazing
Compared with vacuum brazing, the advantages of FARWARDER diffusion bonding are as follows：
- Solid-state welding without filler has higher strength than brazing joints;
- The welding rate is higher than brazing, which can reach more than 95%;
- Small or no deformation after welding;
- Wider applicability than brazing;
- More suitable for high-precision micro-parts processing than brazing.
If you need the above services, please call our hotline immediately to contact us! We will provide you with satisfactory services!
Vacuum Diffusion Bonding Equipment Parameters
- Data Sheet
| Equipment parameters | Vacuum hot pressing sintering furnace | High temperature vacuum hot pressing sintering furnace |
| Effective heating area | 400mm*400mm*500mm | 600mm×600mm×450mm |
| Diffusion bonding maximum temperature | 1100℃ | 1700℃ |
| Temperature control accuracy | ≤±1℃ | ≤±1℃ |
| Temperature uniformity | ±3℃(empty furnace, three-dimensional nine-point temperature measurement) | ±3℃(empty furnace, three-dimensional nine-point temperature measurement) |
| Ultimate vacuum degree | ≤6.6*10-4Pa(empty furnace cold state) | ≤6.6*10-4Pa(empty furnace cold state) |
| Design pressure | 50T single top pressurization | 500T single top pressurization |
| Cooling method | Argon rapid cooling | Argon rapid cooling |
Surface roughness of parts before welding (the welding surface roughness must be Ra0.4um), chemical cleaning effect of parts before welding (no burrs, scraps and other excess materials), rationality of fixture design, rationality of welding process parameter settings (such as welding temperature, insulation time, pressurization method)
Generally speaking, the delivery cycle of diffusion bonding products is 1 week, and the delivery cycle of expedited orders is within 48 hours.
Appearance quality inspection: inspectors use naked eyes, magnifying glasses, dial calipers, and micrometers for inspection;
Joint tensile inspection, ultrasonic welding-on rate inspection, and microscopic metallographic inspection: machined tensile specimens, ultrasonic inspection specimens, and microscopic metallographic inspection specimens are sent to qualified third-party inspection agencies for inspection, and a third-party inspection report is issued.
Pressure test: The antenna liquid cooling pipeline pressure, flow, and flow resistance test equipment, independently designed by our company, is used for inspection, which can produce pressure, flow, and flow resistance curves, conduct data analysis, and preserve them for a long time.
