Construction in full light lines.
Sheet metal development drawing pdf.
This is due to the fact that drawings manipulated on the sheets by a word processor have been adjusted to conform to space limitations.
Sheet metal drawings usually contain views both of the fully formed part and of the flat pattern as in figure sm 4.
A development is a flat representation or pattern that when folded together creates a 3 d object.
1 1 1 scriber lines are drawn on sheet metal with a scribe or scratch awl coupled with a steel scale or a straightedge.
Introduction to solidworks sheet metal for technology page 14.
Layout tools are used for drawing fabrication jobs on metal.
Some of the more common layout tools are scriber flat steel square combination square protractor prick punch dividers trammel points and circumference ruler.
You will also.
Create a drawing of the sheet metal part.
A development is the unfold unrolled flat plane figure of a 3 d object.
Figure sm 4 coach for pro engineer pro sheetmetal drawings flat state.
Called also a pattern the plane may show the true size of each area of the object.
The resulting flat pattern gives the true size of each connected area of the form so that the part or structure can be fabricated.
Methods of development of surfaces are.
Department of training and workforce development.
Parallel line development radial line development triangulation.
You can place views of the part in both states on the same drawing by creating a multi model drawing.
Select flatten from the sheet metal toolbar the sheet metal model flattens out into the surface development used to create it.
When a single part is to be produced in quantity a different development procedure is used.
In sheet metal development work some fabrication or repair jobs can be laid out directly on sheet metal.
Are manufactured from thin sheet materials.
Generally a template is produced from an orthographic drawing when small quantities are required larger quantities may justify the use of press tools and the template will include allowances for bending and seams bearing in mind the thickness of material used.
Many articles such as cans pipes elbows boxes ducting hoppers etc.
As sheet metal features are added to the part it remains at the bottom.
Sheet metal construction is the most common application for developments and intersections.