Engineering Sheet Metal Drawing Notes

Engineering graphics is used in the design process for visualization communication and documentation.

Engineering sheet metal drawing notes.

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

Drawing force power and number of stages defects in products. Accuracy in the use of the scale rule. However in order to have a measure for sake of comparison the limit drawing ratio ldr is taken as a measure of drawability. Cutting of sheet metal is accomplished by a shearing action between two sharp edges.

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. Punch begins to push into work causing plastic deformation 3. Just before the punch contact work 2. The shearing action is illustrated in the figure.

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. Bend annotations a bend note adds fabricating information to sheet metal bend centerlines. The proper relation of views in a drawing. After you insert the bend table in the drawing bend tags are added to the selected drawing view.

In making the layout for this cleat the following points must be kept in mind. Fig shows the shearing of sheet metal between two cutting edges. Blanking and piercing bending and forming drawing and its types cup drawing and tube drawing coining hot and cold spinning.