Sectioning In Engineering Drawing Pdf

Detail drawings seldom describe the intent of an engineering design.

Sectioning in engineering drawing pdf. The name and or drawing number of the assembly drawing in which the detail drawing is called up or used on is stated in the title block. 5 or complex with two or more cutting planes fig. 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.

If the cutting plane cuts halfway through the object it is a half section. Sections are used to show interior details clearly. In addition to these there are broken out sections.

A section lined area is always completely bounded by a visible outline never by a hidden line. Sectioning standards and conventions recognition an engineering drawing often needs to show features that we can t see because they are inside the object. A cutting plane line shows where object was cut to obtain the section view.

The following slides will help show the several methods or types of section views. It is important to remember that when using half sections certain rules apply to the visibility of the center line. If the thing we are drawing is too complicated for this method instead of drawing hidden.

If the thing we are drawing is quite simple we can mark the hidden parts by a hidden outline. An engineering design is usually defined by many individual detail drawings which combine to form an assembly drawing. Keep the following things in mind when drawing sectional views.

What is a section view. Visible edges and contours behind the cutting plane should be shown as below in fig. Cross hatching in the section view shows the solid surface of the object which were cut through to produce the section.