Forging is a metal production process with a long history.
The advantage of forging production lies in the fact that it cannot only obtain
the shape of mechanical parts but also improve the internal organization of
materials and improve the mechanical properties. Due to the excellent
performance of aluminum and aluminum alloys, it is widely used in machinery,
electricity, electronics, automobile, ship, construction, instrumentation,
hardware, and household products and other fields. Therefore, for important
mechanical parts with high mechanical properties and high load capacity, they
are mainly produced by forging aluminum. The weight of
aluminum forgings
represents 77% in aircraft, 68% in tanks and 76% in cars.
Forging production occupies a very important position in the
industrial industry, aluminum alloy is also the material widely used in
forging, all kinds of products that can be forged with low-carbon steel can be
replaced by the aluminum forge. Most forged aluminum parts are safety parts and are
produced in large quantities, so there is a high demand for the internal
quality of aluminum materials. Aluminum forging generally follows these
production processes: cutting - heating - forging - heat treatment - machining.
Every procedure must be carefully monitored throughout the forging process.
Aluminum Forging Process
Aluminum alloys are produced by all currently available
forging methods, including open die (or hand) forging, closed die forging,
upset, roll forging and orbital (rotary) forging, rotary forging, mandrel
forging, ring, and face rolling and reverse extrusion. The selection of the
optimal forging method for a given forging mold is based on the forged mold
desired, the refined design of the forged mold and the cost.
Most
aluminum alloy forgings are produced in closed
dies. The four types of closed die aluminum forgings are blocker type (only for
forging finishes), conventional (only for forging blocks and finishing or
finishing forging), high definition (almost clear shape produced by forging in
one or more blocking dies followed by forging finish) and precision (no
tensile, wire forming produced by forging with or without blocking dies
followed by two or more stages of forging in the finishing dies). Blocker-type
forgings are produced in relatively inexpensive die sets. In terms of
dimensions and forged details, they are less refined and require more machining
than conventional or high-definition closed-matrix forgings. A blocker-type
forging costs less than a comparable conventional or high-definition forging,
but it requires more machining.
Conventional closed die forging is the most common type of
aluminum forging. They are produced with a single set of finishing dies or with
block and finishing dies depending on the design criteria. Conventional forgings
have less machine inventory and tighter tolerances than block forgings but
require additional manufacturing costs, both for the additional die set and for
the additional manufacturing steps required to produce this man. High
definition forgings. With the advent of the forging press and advanced support
equipment and improved control of the forging process discussed below, high
definition forgings with a shape close to the wire can be produced. High
definition cast forgings offer more refinement and tolerances in forging design
than conventional or block forgings, further reducing the machining costs of
the final components. High definition forgings are produced with several sets
of dies consisting of one or more blocking dies and finishing dies and are
often used in service with certain forged surfaces that are not machined by the
purchaser.
Aluminum Forging Alloys
There are lots of aluminum alloys that can be used to Drop Forging. Main grades in aluminum forgings include AL6061, AL6063, AL6082,
AL7075, etc.
