Glossary of Terms
A brief definition of common injection molding terms.
Pages in this section
Absolute ram speed profile
Air shot
Air trap
AMG solver
Amorphous polymers
Anisotropic shrinkage
Annular gate
Annular runner
Aspect ratio
Back pressure
Baffle
Balanced flow
Barrel
Barrel capacity
Barrel effect
Batch
Bending moment
Best Fit technique
Birefringence
Boss
Boundary representation solid
B-splines
Bubble
Bubbler
Buckling
Burn mark
Cavity
Center gate
Centroid
Charge stroke
Check ring
Chiller
Chord angle
Chord height
Circular runner
Circular sprue
Circular tapered arc gate
Circular tapered gate
Circular tapered runner
Circular tapered sprue
Clamp capacity
Clamp force
Closed loop controller
Closed volume
Cold slug
Cold slug well
Composite curve
Compressibility model
Computer-aided design (CAD)
Computer-aided manufacturing (CAM)
Conic arc
Control limits
Cooling channel
Cooling stage
Cooling time
Core
Core pin
Cracking
Crystalline morphology
Crystalline polymers
Crystallinity
Crystallization
Cure
Curve
Cushion
Cycle time
Decompression
Delamination
Density
Design of experiments (DOE)
Disc or diaphragm gate
Dominant flow path
Draft angle
Drooling
Dwell
Edge gate
Ejection
Ejection temperature
Ejector pins
Element
End of fill
Extensional viscosity
Family abbreviation
Family name
Fan gate
Feasible molding window
Fiber orientation
Filler
Fillet
Filling stage
Filling time
Flash
Flow leaders and deflectors
Flow path
Free edge
Free-form curves and surfaces
Friction
Gas fingering
Gate
Gate freeze
Gate scar
Gloss mark
Heel
Hesitation
High cushion
Holding stage
Hopper
Hydraulic pressure
Injection cone
Injection location
Injection pressure
Injection time
Injection velocity
Injection volume
Insert
Intersecting mesh elements
Isotropic material
Jetting
Juncture loss
Laminar flow
Loop
Machine intensification ratio
Manifold edge
Masterbatch
Meld line
Melt density
Melt temperature
Mesh
Mesh density
Mesh intersection
Mesh-midplane
Mesh-surface (Dual Domain)
Mesh-volume (3D)
Model
Mold
Mold open time
Mold temperature
Molding window
Network runners
Node
No-flow temperature
Nominal part thickness
Non-manifold edge
Non-return valve
Normalized thickness
Nozzle pressure
Open loop controller
Optimization
Orientation
Orthotropic material
Overlapping mesh elements
Overpacking
Packing stage
Packing time
Part
Parting plane
Pinpoint gate
Plastication
Point
Poisson's ratio
Polymer
Preferred molding window
Press compression force
Pressure gradient
Pressure controlled stage
Pressure profile
Pressure stroke
Pressure-Volume-Temperature (pvT)
Process control
Process parameters
Process window
Processing conditions
Production run
Purging
Racetrack effect
Ram
Ram speed profile
Record groove
Rectangular gate
Rectangular runner
Region
Relative ram speed profile
Restricted gate
Retractable core pins
Reynolds number
Rib
Run
Runner/Runner system
Runner loops
Screw
Screw back position
Screw displacement
Screw forward position
Screw velocity
Semicircular gate
Semicircular runner
Semicrystalline
Set points
Shear
Shear heating
Shear rate
Shear strain
Shear stress
Shell
Short shot
Shot size
Shot weight
Shrinkage
Shrinkage compensation
Side core
Sink mark
Sliver
Solid
Specific heat
Sprue
SSORCG solver
Start of fill
STL file
Stop pin
Streak mark-color
Streak mark-dark
Streak mark-glass fiber
Streak mark-white
Stroke
Sub-gate
Suck back
Surface
Switchover
Tensile strength
Tessellation
Thermal conductivity
Thermal degradation
Thick and chunky
Tooling noise
Transducer
Transition temperature
Translator
Trapezoidal runner
Trimmed surface
Turbulent flow
Unbalanced flow
Undercut
Underflow
Unidirectional flow
Valve gate
Velocity stroke
Velocity controlled stage
Velocity to pressure switchover
Vent
Venting
Viscosity
Viscosity index
Viscosity model
Voids
VRML image
Warpage
Weld line
Wire-sweep index
Zero screw position