1. SHEET METAL WORKING

7. Sheet Metal Forming processes

9. Shearing Shearing is a sheet metal cutting operation along a straight line between two cut-ting edges by means of a power shear.

11. Bending Bending is defined as the straining of the sheet metal around a straight edge

13. Drawing Drawing is a sheet-metal operation to make hollow-shaped parts from a sheet blank

14. Equipments

15. Mechanical Press – The ram is actuated using a flywheel. Stroke motion is not uniform.

16. Hydraulic Press – Longer strokes than mechanical presses, and develop full force throughout the stroke. Stroke motion is of uniform speed, especially adapted to deep drawing operations

17. Dies and Punches Simple - single operation with a single stroke Compound - two operations with a single stroke Combination - two operations at two stations Progressive - two or more operations at two or more stations with each press stroke, creates what is called a strip development

18. Progressive dies & Punches

20. Marking and measuring tools

22. Curved snip

23. Striking Tools Mallet - It is wooden-headed hammer of round or rectangular cross section. The striking face is made flat to the work. A mallet is used to give light blows to the Sheet metal in bending and finishing . Types of Mallets

27. Soldering Iron

28. Move soldering iron until tip is touching wire & solder pad

29. Move solder to touch edge of tip. Solder

30. Hold until solder melts on tip by wire Solder

31. Move solder back to touch wire only Solder

32. Move solder in to form a small pocket Solder

33. Look for shinny fillets

39. Caulking: Operation of burring down the edges of the plates and heads of the rivets to form a metal to metal joint Fullering is a better option