Sheet Metal Development Drawing Pdf

Layout tools are used for drawing fabrication jobs on metal.

Sheet metal development drawing pdf.

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. You will also. Department of training and workforce development. Construction in full light lines.

Sheet metal construction is the most common application for developments and intersections. Methods of development of surfaces are. You can place views of the part in both states on the same drawing by creating a multi model drawing. When a single part is to be produced in quantity a different development procedure is used.

Many articles such as cans pipes elbows boxes ducting hoppers etc. Parallel line development radial line development triangulation. This development procedure known as scratching is used when the object to be made requires little or no duplication. 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. Called also a pattern the plane may show the true size of each area of the object. Figure sm 4 coach for pro engineer pro sheetmetal drawings flat state. Select flatten from the sheet metal toolbar the sheet metal model flattens out into the surface development used to create it.

The drawings on the instruction sheets do not always exactly reflect the specified dimensions however the distances within a drawing are proportional to them. The resulting flat pattern gives the true size of each connected area of the form so that the part or structure can be fabricated. Introduction to solidworks sheet metal for technology page 14. Are manufactured from thin sheet materials.

When the pattern is cut it can be rolled or folded back into the original object. In sheet metal development work some fabrication or repair jobs can be laid out directly on sheet metal. Create a drawing of the sheet metal part. Some of the more common layout tools are scriber flat steel square combination square protractor prick punch dividers trammel points and circumference ruler.

Sheet metal drawings usually contain views both of the fully formed part and of the flat pattern as in figure sm 4.