Diffusion bonding is a welding technique that joins materials through the principle of solid-state diffusion. By applying high temperature and pressure, atoms diffuse across the contacting surfaces to form a metallurgical bond without the need for filler material (or with only a thin interlayer), resulting in joint strength close to that of the base material.
The key advantages of diffusion bonding equipment lie in its ability to weld dissimilar materials (such as metals to ceramics, superalloys to titanium alloys, etc.), with minimal welding deformation and uniform joint quality. It is widely used in high-precision manufacturing fields such as aerospace, electronics, and medical industries.
PRODUCT DESCRIPTION
The process of diffusion welding can be divided into three stages:
Contact stage: Apply pressure to tightly adhere the surface to be welded, eliminate micro gaps, and form physical contact.
Diffusion stage: Under high temperature and sustained pressure, atoms at the contact surface gain energy and infiltrate each other through lattice diffusion, grain boundary diffusion, and other methods.
Combining stage: The diffusion area gradually expands, the interface disappears, and a joint with similar properties to the base material is formed. After cooling, the welding is completed.
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