Manufacturing Processes Final Exam
Review
foundry - Answer-A factory equipped to handle metal in the molten form and where casting are
produced
mold - Answer-A cavity, sometimes consisting of two sides, that (neglecting shrinkage) determines the
size and shape of a part
pattern - Answer-A full-sized model of a part, enlarged to account for shrinkage and machining
allowances, used in sand-mold casting
lost-foam process - Answer-This casting process uses a mold of sand packed around a pattern that
vaporizes when the molten metal is poured into the mold
die casting - Answer-This permanent mold process injects molten metal into the mold cavity at high
pressures
silica - Answer-This is the principal starting material in glassworking
extrusion - Answer-This fundamental shaping process (used for metals, ceramics, and polymers) uses
compression to force material through a die orifice, resulting in a long continuous product whose cross-
sectional shape is determined by the die orifice
calendering - Answer-This process is used to produce sheet and thin film stock out of rubber or rubbery
thermoplastics
, injection molding - Answer-A process where a polymer, in a highly plastic state, is forced to flow into a
mold cavity, where it solidifies
parison - Answer-The starting tube of molten plastic used in blow molding
rotational molding or rotomolding - Answer-This process uses gravity and a rotating mold to produce
large hollow parts from polymers
thermoforming - Answer-A process in which flat thermoplastic sheet is heated and deformed into the
desired shape
carbon black - Answer-This is the most important reinforcing filler in rubber because it increases tensile
strength and resistance to abrasion
soaking - Answer-The operation (done prior to roll forming) of heating a cast steel ingot until it has
reached a uniform temperature throughout
forging - Answer-A deformation process in which the work is compressed between two dies, using either
impact or gradual pressure to form the part
drawing - Answer-A bulk deformation process in which the cross-section of a rod or wire is reduced by
pulling it through a die opening
press - Answer-Most sheet metal operations are performed on this type of machine
shearing, blanking, and punching - Answer-The three primary operations in pressworking that cut sheet
metal are
Review
foundry - Answer-A factory equipped to handle metal in the molten form and where casting are
produced
mold - Answer-A cavity, sometimes consisting of two sides, that (neglecting shrinkage) determines the
size and shape of a part
pattern - Answer-A full-sized model of a part, enlarged to account for shrinkage and machining
allowances, used in sand-mold casting
lost-foam process - Answer-This casting process uses a mold of sand packed around a pattern that
vaporizes when the molten metal is poured into the mold
die casting - Answer-This permanent mold process injects molten metal into the mold cavity at high
pressures
silica - Answer-This is the principal starting material in glassworking
extrusion - Answer-This fundamental shaping process (used for metals, ceramics, and polymers) uses
compression to force material through a die orifice, resulting in a long continuous product whose cross-
sectional shape is determined by the die orifice
calendering - Answer-This process is used to produce sheet and thin film stock out of rubber or rubbery
thermoplastics
, injection molding - Answer-A process where a polymer, in a highly plastic state, is forced to flow into a
mold cavity, where it solidifies
parison - Answer-The starting tube of molten plastic used in blow molding
rotational molding or rotomolding - Answer-This process uses gravity and a rotating mold to produce
large hollow parts from polymers
thermoforming - Answer-A process in which flat thermoplastic sheet is heated and deformed into the
desired shape
carbon black - Answer-This is the most important reinforcing filler in rubber because it increases tensile
strength and resistance to abrasion
soaking - Answer-The operation (done prior to roll forming) of heating a cast steel ingot until it has
reached a uniform temperature throughout
forging - Answer-A deformation process in which the work is compressed between two dies, using either
impact or gradual pressure to form the part
drawing - Answer-A bulk deformation process in which the cross-section of a rod or wire is reduced by
pulling it through a die opening
press - Answer-Most sheet metal operations are performed on this type of machine
shearing, blanking, and punching - Answer-The three primary operations in pressworking that cut sheet
metal are
