Engineering Sheet Metal Drawing Notes

Blanking and piercing bending and forming drawing and its types cup drawing and tube drawing coining hot and cold spinning.

Engineering sheet metal drawing notes.

Formability of sheet metal is the ability of sheet metal to be drawn into cups or formed into the desired shapes without any defect. Bend notes are associated with a drawing view. The proper relation of views in a drawing. 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.

In making the layout for this cleat the following points must be kept in mind. How to dimension a drawing. 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. 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. Unit iv sheet metal working economical considerations stamping forming and other cold working processes. The shearing action is illustrated in the figure. Engineering graphics is used in the design process for visualization communication and documentation.

Cutting of sheet metal is accomplished by a shearing action between two sharp edges. Bend tags associate rows in a bend table with the view geometry. Bend annotations a bend note adds fabricating information to sheet metal bend centerlines. Just before the punch contact work 2.

Drawing force power and number of stages defects in products. Accuracy in the use of the scale rule. After you insert the bend table in the drawing bend tags are added to the selected drawing view.