Introduction To Engineering Drawing Line Types
Engineering drawing line types are used to convey a variety of information on an engineering drawing. Line types are used to differentiate between different kinds of lines such as hidden, center, phantom, and break lines. Line types allow for an easier understanding of the information and can be used to represent a variety of features on an engineering drawing. Line types can also be used to represent the materials used in a drawing as well as the type of surface the drawing is to be produced on. It is important to understand the various line types and how to best use them in your engineering drawings.
Types Of Engineering Drawing Line Types
The most common line types used in engineering drawings are described below.
Hidden Lines
Hidden lines are used to represent the edges of surfaces that are not visible. The thickness of the line used to represent a hidden line generally varies depending on the type of material being used for the drawing. Generally, a thicker line is used for a metal surface and a thinner line is used for a plastic surface. The length of the line should be short enough to help differentiate it from other line types.
Center Lines
Center lines are used to indicate the center of a feature or object. Center lines are typically drawn with a thicker line than the other line types and are used to help create symmetry or to indicate where something is centered. Center lines are often used to represent the center of a circle or the centerline of a pipe or tube.
Phantom Lines
Phantom lines are used to indicate the outline of a feature or object that is not visible. Phantom lines are generally drawn with a thinner line than the other line types and are used to help differentiate features that are not visible from those that are. Phantom lines are often used to indicate the outlines of components that are not physically present.
Break Lines
Break lines are used to indicate a break in a feature or object. Break lines are typically drawn with a thicker line than the other line types and are used to help differentiate features that are broken from those that are not. Break lines are often used to represent a break in a pipe or tube, or a break in a surface.
Conclusion
Engineering drawing line types are an important part of creating an effective engineering drawing. Different line types can be used to convey different kinds of information and to differentiate between different kinds of features. It is important to understand the different line types and how to best use them in your engineering drawings.
Leave a Reply