Part Drawing -> detail drawings completley describe a single part or orthographic projection.Provides all information necessary.
Assembly Drawings -> used to show the position and functional relationship parts in an assembly.
They have no dimensions.
Section Views ->are used to clarify internal detail and to avoid dimensioning to hidden lines. They are established by refrencing a cutting plane. They depict the exact location on the part from which the section view will be projected, and should have associated arrowheads, indication the direction from which the section view will be observed. Cutting planes are constructed as an integral feature of the parent view, and cutting plane arrowheas always indicate the direction for the observers line of sight.
Cross Hatching -> a repeating graohic pattern which is applied throughout all areas of the part that would be in contact with the cutting plane. . The recommended angle for the standard cross hatch patter is 45,30,60 degress horizontal.
Half Sections -> views are the result of cutting planes being positioned on parts in such a manner that only half of the resulting view or projection is show in section. Used on objects of symmetry.
Offset Sections-> allows us to provide greater breadth of detail with fewer section views. all of the features are aligned with the cutting plane.
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