Section Lines Engineering
A section is a view of no thickness and shows the outline of the object at the cutting plane.
Section lines engineering. Graphic arts one of a series of parallel lines indicating a cut surface in a mechanical or architectural drawing. The reason for this is that the section is usually of a long form such that if it were hatched it would give a false impression of rigidity and strength. A section view is a view used on a drawing to show an area or hidden part of an object by cutting away or removing some of that object.
Different section line symbols can be used to represent various types of materials. Sections and section views on engineering drawings. These lines are used to represent the outlines of adjacent parts extreme positions of movable parts in the assembly drawings parts situated in front of the cutting planes initial outlines prior to forming centroidal lines etc.
Sections and sectional views are used to show hidden detail more clearly. Sek shən līn civil engineering a line representing the boundary of a section of land. Sometimes it is necessary to cut a part or assembly to reveal geometry or fits on the inside of a part or assembly.
They are created by using a cutting plane to cut the object. Section lines or cross hatch lines are added to a section view to indicate the surfaces that are cut by the imaginary cutting plane. When sections are taken of long parts such as ribs webs spokes of wheels and the like it is normally the convention to leave them unsectioned and therefore no cross hatch lines are used.
The cut line is called a cutting plane and can be done in several ways. One of a series of thin parallel lines placed on the cut surfaces of section views as in an architectural drawing. The boundary line of a section in surveying or land distribution in eastern ohio roads followed section lines r.
Definition of section line. A section or cross section is a view generated from a part or assembly on a cutting plane or multiple cutting planes that reveals the outlines on the inside or assembly fits.