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Thick (.7mm) dashed lines
- Two types of lines are acceptable for cutting plane lines in multiview drawings. It is important to use only one type of cutting plane line on a single drawing. Cutting plane lines are thick (.7mm) dashed lines, that extend past the edge of the object 1/4" or 6mm and have line segments at each end drawn at 90 degrees and terminated with arrows.
highered.mheducation.com/sites/dl/free/0072864583/132262/FGC_4e_Out_ch8.pdf8.1 SECTIONING BASICS Section views Sectional drawings reveal ...
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The cutting plane line is typically drawn as a thick line with evenly spaced dashes, which distinguish it from other lines in the drawing. Cutting plane lines may also be represented with a heavy phantom line, or as corner indicators.
- General Principles
- Section Lines and Symbols
- Cutting Planes
- Main Principles of Placement of Sectional Views
A sectional view represents the part of an object remaining after a portion is assumed to have been cut and removed.The exposed cut surface is then indicated by section lines.Hidden features behind the cutting plane are omitted, unless required for dimensioning or for definition of the part.Section lines, or hatching, that represent the cut surface usually consist of thin parallel lines, as shown below, drawn at an angle of approximately 45° to the principal edges or axes of the part. For most purposes, the general use symbol of cast iron is used. When it is desired to indicate differences in materials, for example on assembly drawing...
Cutting plane lines which show where the cutting plane passes through the object, represent the edge viewof the cutting plane and are drawn in the view(s) adjacent to the section view. Here the cutting plane is drawn as an edge in the top view, which is adjacent to the sectioned front view. This is a frontal cutting plane. Lines of sight should alw...
Whenever practicable, and except for revolved sections, you should project sectional views perpendicular to the cutting plane and place it in the normal position for third angle projection.You should never show the views in first angle projected position on a third angle projection drawing.When the preferred placement is not practical you may remove the sectional view to some other convenient position on the drawing, but it must be clearly identified, usually by two capital letters,...Normally, you should not change orientation of the view, but if this becomes necessary, you must state the number of degrees through which it is revolved.The cutting plane line is a thick, dark line with arrows on the ends to show the direction where the section was taken on the drawing. The line is either a series of dashes of equal length or a series of long and short dashes.
However, unlike section lines, viewing plane lines to not “cut” the part. Some companies will choose to use different line types for section views and for cutting views. Be sure to conform to the standard you are working under. Cutting plane lines are seen as actually slicing the part in two.
It is important to use only one type of cutting plane line on a single drawing. Cutting plane lines are thick (.7mm) dashed lines, that extend past the edge of the object 1/4" or 6mm and have line segments at each end drawn at 90 degrees and terminated with arrows.
In most cases, sectional views (or views that show complicated internal details of a part) are indicated by using a cutting plane line. These lines are thick, alternating long lines separated by two short dashes.
Jun 28, 2022 · Cutting plane lines. Cutting plane lines (Figure \(\PageIndex{9}\)) show the location and path of imaginary cuts made through parts to show internal details. In most cases, sectional views (or views that show complicated internal details of a part) are indicated by using a cutting plane line.
