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Scale: Scale represents the ratio between the drawing and the component it represents. When an engineering drawing is drawn to scale, all parts of the drawing relate to this ratio.


Scrap: Scrap metal is the metal left after cutting a shape which cannot be used for any other job or project.


Scribed: A line which is scribed is a line permanently marked on metal using a scriber.


Scriber: A scriber is a hardened pointed marker used to mark lines on any given metal.


Section: A cross section of a component that reveals the internal features.


Section line: A section line is the line that depicts the cutting plane in technical drawing.


Section plane: A section plane describes the surface that is created when a component is cut through so that a portion is removed and the internal features are clearly revealed. It can also be called the cutting plane.


Sectional view: A sectional view (or section view) is the view that is revealed when the front portion is removed by the cutting plane to reveal the internal features.


Sine: The sine function is one of the basic functions in trigonometry (along with cosine and tangent). In a right triangle, the sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.


Single initial pinch roll: A single initial pinch roll is a rolling machine where only one roll can preset the edge of a cylindrical shape.


Skid rolling: Skid rolling is a rolling technique in which the pattern pivots around the equipment during rolling.


Slant height: Slant height is the length from the apex to the exterior edge of a conical shape.


Slot weld: Slot weld is similar to a plug weld but longer in length where weld process is placed in a slot in order to join two overlapping plates.


Software: Software is a program that enables a computer to perform a specific task, as opposed to the physical components of the system (hardware).


Solid: In mathematics, a solid is a three dimensional geometric figure.


Springback: Springback is what happens when metal returns to its original shape after undergoing compression and tension (stretching).


Square: A square is a figure which has four equal (straight) sides.


Square root: The square root (Square root symbol) of a number is another number which, when multiplied or squared, is equal to that number eg 5 is the square root of 25 because 5 x 5 = 25.


Square to round: Square to round is the term given to a shape which changes from one form to another, specifically, from square to round.


Standard plates: Standard plates are sheets of metal in standard sizes.


Standard top tool: Standard top tool is the top forming blade on a press brake.


Stock pipe: Stock pipe is pipe that is already rolled.


Stretch out: Is is a 2D pattern of a 3D object .


Stroke adjustment: Stroke adjustment is the amount of movement up or down of a blade or die block on a press brake which can be altered to suit material thickness.


Subassembly: A sub assembly is a group of components that is part of the completed project.


Subassembly drawing: Subassembly drawing is a type of drawing that shows how to put together particular parts of the project.


Subtract: Take one number away from another number to make a total.


Subraction: Subtraction is a particular type of calculation in which one number is taken away from another number to make a total.


Sum: This is the result when two or more numbers are added together.


Symbols: Symbols are signs or images that communicate information in a shortened way.


Symmetrical: A shape is symmetrical if both sides are the same when a line is drawn, or a cut is made through its centre.