1 compaction

Kawamura et al as early as in 1995 and 1997 Zr65AloNi. oCu amorphous Brazing Alloy powder is heated to slightly above the glass transition temperature, the alloy powder in the supercooled liquid region to 1.0GPa put pressure on. Since the alloy has too wide supercooled liquid region and a lower subcooled liquid viscosity the powder compression the porosity is only 1, the tensile strength and elastic modulus were reached 1520MPa and 80GPa, close to the amorphous block of the liquid quenching and the values ??of the amorphous ribbon.

2 explosion welding

Explosion welding is explosives as an energy source for welding metals, using the impact force generated by the explosion, the weldment violent collision occurs, mutual diffusion between the plastic deformation, melting and atoms, in order to achieve a method of the connection weldment, characterized by allows any The same material, in particular the different kinds of materials instantaneously and firmly welded together.

3 flash welding

Between two amorphous alloy Zr5A1iCu ∞ welding test, process parameters Voltage 100 ~ 180V, the successful implementation of the amorphous alloy welding flash welding. After testing. Remains amorphous structure of the specimen at the weld interface without defects, welds and heat affected zone, no crystallization occurs, and post-weld specimens tensile strength of 1540MPa, almost equal to the pre-welding of amorphous alloy.

4 laser welding

Laser welding using a high energy density laser beam is irradiated on the specimen surface. Material absorption of part of the light can be converted into thermal energy, to melt the material, to achieve a high-precision welding method for welding, in the output power of 1.2kW, spot 0.3mm, welding speed, respectively 2,4,8 m / min Process conditions under, the homogeneity amorphousBrazing AlloysZr45Cu48Al of welding. After testing, welding speed 8m/min, weld and heat affected zone no holes, no cracks, no crystallization of the organization to maintain the amorphous structure. Successful implementation of the amorphous alloy welding.

5 electron beam welding

Electron beam welding is a welding method for a high energy density, the use of the acceleration, focus, and spatial orientation of the high-speed movement of the electron beam strikes the surface of the workpiece after a portion of the kinetic energy is converted to heat, so that the weld metal is molten, and cooled and solidified to form the weld a welding process.

6 Friction Welding

Friction welding is the the workpiece Q relative movement generates frictional heat to make the joint surface was heated to forging temperature, under the action of the pre-forging force, is formed by the plastic deformation of the material and diffusion process, solid connection welding method.

7 Friction Stir Welding

The principle of friction stir welding seams of the artificial member is a cylindrical shape of the welding head extension, high speed rotation of the welding head, with the friction of the workpiece material, the material temperature rises softening, while the material was stirred to complete the welding method. Patented welding technology is put forward in 1991 by the British Institute of Welding friction stir welding, friction stir welding temperature is relatively low, a small structure of after welding residual stress and distortion than welding, it caused the emergence of the welding industry attention, also gradually for amorphous alloy welding.