Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by using high heat to melt the parts together and allowing them to cool causing fusion. Welding is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal. Metalli’s welding process consists a wide variety of material scopes and products. Our custom welding services offer a cost-effective and on-demand solution for your manufacturing requirements.
Benefits of Welding
●Economical and cost efficiency
●High strength and good durability
●Quick setup and exchange
●Custom joint solutions achieved
◆Aluminum and aluminum alloys
Metalli’s welding capabilities
●Length/width/diameter up to 2 meters or larger
●Minimal wall thickness 0.1 mm
●Tolerance ±0.2 mm or less
●A series of welding processes, spot welding, CO2/argon gas shielded arc welding, laser beam welding.
●Welded steel pipes
Industries that use welding
Welding parts are widely used in automotive, household, electronics, energy, construction and industrial.
Overview: What’s welding?
The basics of welding
Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by using high heat to melt the parts together and allowing them to cool causing fusion. Welding is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal.
In addition to melting the base metal, a filler material is typically added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that, based on weld configuration (butt, full penetration, fillet, etc.), can be stronger than the base material (parent metal). Pressure may also be used in conjunction with heat, or by itself, to produce a weld. Welding also requires a form of shield to protect the filler metals or melted metals from being contaminated or oxidized.
How does welding Work
Welding is, at its core, simply a way of bonding two pieces of metal. While there are other ways to join metal (riveting, brazing and soldering, for instance), welding has become the method of choice for its strength, efficiency and versatility.
There are many different welding methods, and more are being invented all the time. Some methods use heat to essentially melt two pieces of metal together, often adding a "filler metal" into the joint to act as a binding agent. Other methods rely on pressure to bind metal together, and still others use a combination of both heat and pressure. Unlike soldering and brazing, where the metal pieces being joined remain unaltered, the process of welding always changes the work pieces.
This may seem like a trivial point, but it's actually critical to understanding why welding produces such strong bonds. In the processes of soldering and brazing, two pieces of metal are joined by introducing a third material (with a lower melting point) into the mix. Melting this third material between the surfaces of the original pieces binds the pieces together. The bond, however, is only as strong as the joining material. Welding, on the other hand, cuts out the middleman and joins the original pieces directly to each other. The result is a strong, cohesive bond that's often as strong as the material itself.