Section Views(catia v5(
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description
Section views in CATIA v5, drawing module
Transcript of Section Views(catia v5(
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Section Views
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Section ViewMultiview drawing technique that contain special views of part/parts to represent the interior features
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Sectional ViewSection view is based on the use of an imaginary cutting plane that cuts through the object to reveal the interior features
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Sectional Drawing- Eliminating the hidden lines
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Treatment of Hidden Lines
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Optional Use of Hidden Lines
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Representation of planes and Edges in a Section View
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CAD Technique
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Visualization of a Section View
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Visualization of a Section View
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Cutting Plane linesThe edge view of the cutting plane
Cutting plane lines are thick (0.6 mm or 0.032”), dashed lines that extend pass the edge of object 6 mm or ¼ inch
Cutting plane line has precedence over the center line
Cutting plane line is not added to drawing when its position is obvious
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Line Types for Cutting PlaneThe edge view of the cutting plane one long and two
shot dashes
equal length dashed line
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Classifications of Cutting Plane lines1- Frontal cutting plane2-Horizontal cutting plane3- Profile cutting plane
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Classifications of Cutting Plane lines1- Frontal cutting plane2-Horizontal cutting plane3- Profile cutting plane
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Classifications of Cutting Plane lines1- Frontal cutting plane2-Horizontal cutting plane3- Profile cutting plane
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Multiple Cutting Plane lines
Horizontal & Profile section views
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Section Line Practices
General symbol
IdenticalDrawn in the same directionUniform spacing
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General Purpose (Cast Iron) Section Line
45 degree angleSpace of 1.5 mm to 3 mm or moreThin black line (0.35 mm or 0.016”), H or 2H pencil
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Section Line Placement
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Notes in Section-Lined Area
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Outline Sections
Large parts – to save time
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Thin Wall Sections
Parts less than 4 mm thicke.g. Washers , Gaskets
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Section View Types
1- Full section2- Half section3- Broken-out section4- Revolved section5- Removed section6- offset section7- Assembly section8- Auxiliary section
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Full Section
General purpose:45 degree angleSpace of 1.5 mm to 3 mm or moreThin black line (0.35 mm or 0.016”), H or 2H pencil
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Full Section
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Half Section
- Hidden lines are removed in both halves- Most often on symmetrical parts- in Assemblies
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Broken-Out Section
- Hidden lines may be removed in the unsectioned portion
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Revolved Section
- e.g. bar, handle, spoke, web, aircraft wing, or other elongated features
- Showing the cross section without drawing the other view
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Removed Section
- Similar to the revolved section but the section is drawn adjacent to the orthographic view for better clarification
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Removed Section
- Multiple removed section views for continuously varying shape
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Removed Section
- Scaled removed section views
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Removed Section- Aligned removed section views
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Offset Section- Bent at one or more 90° angles to pass through the important features
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Offset Section- Multiple offset section
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Assembly Section
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Assembly Section- Standard pats not section linede.g. :shafts bearings, roller or ballGear teethThreaded fastenersNuts and boltsRivetsRibsSpokesLugsWashersKeysPins
- Different hatching angle or material symbols are used for adjacent parts
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Auxiliary Section
- Full
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Auxiliary Section
- Partial
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Sectioning Conventions
- Ribs, webs, lugs and other thin wall are not section lined because it gives the false impression that the part is thicker than it really is
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Sectioning Conventions
- Ribs, webs, lugs and other thin wall are not section lined
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Sectioning Conventions-Ribs, webs, lugs and other thin wall are section lined to avoid mistake-Use alternate section lines
-Webs flush with the rim and hub-Webs are lost without section lines
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Aligned Section
- Holes
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Aligned Section
- Spokes
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Aligned Section
- Lugs
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Aligned Section
- Ribs
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Conventional Breaks
- Revolved section views or for shortening the elongated parts
