72 articles
AlSi10Mg
AlSi10Mg is a castable aluminum alloy containing about 10% silicon and 0.3% magnesium, widely used for high-pressure die casting and as the powder in laser powder bed fusion additive manufacturing.
Anyang bronze casting
Anyang bronze casting is the piece-mold casting technique (fanzhu, 范铸法) used at Yinxu, the late Shang capital at Anyang, Henan, to produce ritual vessels, weapons, and chariot fittings.
AZ91D magnesium alloy
AZ91D is a high-purity magnesium die casting alloy containing about 9% aluminum and 1% zinc by ASTM designation, popular for thin-walled automotive and electronics castings.
Blow molding
Blow molding, also called blow forming, is a manufacturing process that makes hollow plastic parts such as bottles and tanks by inflating heated plastic in a mold.
Burn-on
Burn-on, also called burned-on sand, is a casting defect in which sand from the mold adheres to the casting as a rough layer that is very hard to remove.
Casting
Casting, also known as the casting process or metalcasting, is a manufacturing process in which molten metal is poured into a mold cavity shaped like the desired part and allowed to solidify.
Casting defect
A casting defect is an unwanted irregularity in a cast metal part, such as a void, crack, or dimensional error, formed during mold filling or solidification.
Centrifugal casting
Centrifugal casting is a metal casting process in which molten metal is poured into a rotating mold, so centrifugal force presses it against the mold wall.
Ceramic injection molding
Ceramic injection molding (CIM) is a manufacturing process that injects ceramic powder mixed with a binder into a mold, then sinters the part into a dense ceramic component.
Chill casting
Chill casting is a foundry technique in which metal or water-cooled inserts, called chills, speed local solidification and refine grain structure; it also names casting in permanent metal molds.
Compound casting
Compound casting is a casting process that joins two different metals by casting molten metal around a solid insert, producing one bimetallic part with a metallurgical bond.
Compression molding
Compression molding is a manufacturing process that presses softened polymer, rubber, or composite material between heated mold halves, curing it under pressure, and is the largest primary process for automotive composites.
Continuous casting
Continuous casting, or slab continuous casting, is a metal manufacturing process that pours molten steel into a water-cooled mold and solidifies it into a strand cut into slabs, billets, and blooms.
Cupola furnace
A cupola furnace is a vertical shaft furnace used in foundries to melt cast iron, patented by John Wilkinson in 1794 and still in use today.
Density index
The density index, also known as the Straube-Pfeiffer test or reduced pressure test, is a foundry quality-control number expressing, as a percentage, the gas porosity tendency of molten aluminum.
Die casting
Die casting is a manufacturing process that injects liquid metal under high pressure into a reusable steel die, best suited to high-volume parts in aluminum, zinc, and magnesium.
Direct chill casting
Direct chill casting is a semi-continuous casting process in which molten metal is poured through a bottomless water-cooled mold and withdrawn downward as it solidifies.
Directional solidification
Directional solidification is a casting technique that controls heat flow so a material solidifies in one direction, forming aligned columnar grains or a single crystal.
Electric arc furnace
An electric arc furnace (EAF) is a steelmaking furnace that melts iron-bearing material, chiefly recycled scrap, with electric arcs between graphite electrodes, accounting for about 30% of global steel production.
Foam injection molding
Foam injection molding is a plastics process that injects polymer melt with a blowing agent, producing parts with a solid skin and a lightweight foamed core.
Foundry
A foundry, also known as an iron foundry, is an industrial facility where metal is melted and poured into molds to produce castings, most often iron, aluminum, or zinc.
Freeze-casting
Freeze-casting is a solidification processing technique in which a suspension is directionally frozen so solvent crystals reject particles, then sublimated, leaving porous materials used in biomedicine, filtration, and batteries.
Gas porosity
Gas porosity is a casting defect in which gas bubbles, usually dissolved hydrogen in molten aluminum, become trapped during solidification and form rounded voids that reduce strength and fatigue life.
Gating system
A gating system is the network of channels, including the pouring basin, sprue, runners, and ingates, that carries molten metal into a casting mold cavity.
Gelcasting
Gelcasting is a near-net-shape ceramic forming process in which a slurry of ceramic powder and monomers gels inside a mold, developed at Oak Ridge National Laboratory in the 1990s.
Goryeo bell casting
Goryeo bell casting is the bronze casting of Korean Buddhist temple bells, or beomjong, during the Goryeo dynasty (918–1392), which kept the Silla style in smaller forms.
Gravity casting
Gravity casting is a metal casting process in which molten metal fills a mold under gravity alone, producing castings in sand molds or reusable metal dies.
High-pressure die casting
High-pressure die casting (HPDC) is a casting process that forces molten metal under pressure into a steel die, filling in a fraction of a second.
Imprint lithography
Imprint lithography is a nanofabrication method that patterns a polymer resist by pressing a mold into it, replicating features cheaply and being tested for NAND flash chip manufacturing.
Induction furnace
An induction furnace is an electrical melting furnace that heats metal with eddy currents induced by a copper coil, used for steel, cast iron, aluminum, and specialty metals.