Engineering Sheet Metal Drawing Notes

The proper relation of views in a drawing.

Engineering sheet metal drawing notes.

How to dimension a drawing. After you insert the bend table in the drawing bend tags are added to the selected drawing view. A bend table lists propertied of all bends in a flat pattern view of a sheet metal part. Bend tags associate rows in a bend table with the view geometry.

Cutting of sheet metal is accomplished by a shearing action between two sharp edges. The sheet metal cleat the work of this problem will consist in laying out to full size the views and pattern for a galvanized sheet metal cleat. Accuracy in the use of the scale rule. Bend annotations a bend note adds fabricating information to sheet metal bend centerlines.

Unit iv sheet metal working economical considerations stamping forming and other cold working processes. Engineering graphics is an effective way of communicating technical ideas and it is an essential tool in engineering design where most of the design process is graphically based. Fig shows the shearing of sheet metal between two cutting edges. In making the layout for this cleat the following points must be kept in mind.

Just before the punch contact work 2. Formability of sheet metal is the ability of sheet metal to be drawn into cups or formed into the desired shapes without any defect. Engineering drawing basic sheet layout title block notes engineering working drawings basics. However in order to have a measure for sake of comparison the limit drawing ratio ldr is taken as a measure of drawability.

Blanking and piercing bending and forming drawing and its types cup drawing and tube drawing coining hot and cold spinning. The shearing action is illustrated in the figure. Drawing force power and number of stages defects in products.