Metal fabrication
(metal technology), is a metal material processing into goods, parts,
components, technology, and includes bridges, ferries and other large parts,
and even the tiny components of engines, jewelry, watches. It is widely used in
science, industry, arts, crafts and other fields.
Some of the
specialized metal fabrication methods include
brazing, shearing, forming, extrusion, forging, heat treatment, powder coating,
punching, casting, spinning, and chipping to name a few. Some of the higher
level specializations include electrical, prototyping, machine design, and hydraulics.
Characteristics of
metal manufacturing
(1) on the
adaptability of casting shapes and sizes. It can produce a variety of shapes
and sizes of rough, especially suitable for the manufacture of parts with
complex inner cavity.
(2) the
adaptability of the material. Can be adapted to most metal forming, not
suitable for forging and welding materials, casting has its unique advantages.
(3) low casting
cost. This is due to the casting material is abundant, casting shapes close to
the parts, reduces the amount of machining to reduce casting cost.
Casting is a blank
one of the most important ways, such as by weight, 60%~80%, car 50%~60% used in
the machine tool castings. But as casting process links, easy to produce a
variety of casting defects, and General casting of coarse grain size,
mechanical properties than forging. Castings are generally not suitable for
making the important parts of the complex forces and force, and is mainly used
by force or by simple static loading (particularly suited to compression stress)
parts, such as cabinet, bed, frame, frame, etc.
Fabricated metal
products industry-wide
Metal products
including: tools, fixtures, General hardware, bearings, locks, tooling,
machinery and equipment, fasteners, metal, screw driver, instruments, plumbing
hardware, hardware.
