PRESS TOOL DESIGN [PTD] ALL MODULE NOTES | HAND WRITTEN NOTES - MU18NOTES
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Contains:-
Introduction to press working
1.1 classification of common press working operation, benefits and limitations of using press tools.
Application of pressed parts/components.
1.2 theory of shearing in press working.
Optimum cutting clearance and it's effects on tolerance of pressed components.
Construction of basic shearing
Function of difference elements of a press tool. Method of feeding the strip/ coil materials.
Contains:-
Module 2 Design and calculation.
2.1 calculation for economic strip layout, calculation of cutting force and stripping force, recommending minimum tonnage of a press.
Centre of pressure ( it's important and calculation)
2.2 design aspects of press tool elements viz.
Punches and method of retaining punches, die block, stripper, pilot etc.
Method of reducing cutting load on press tools
3.3 different types die sets and it's selection.
Contains is syllabus:-
Module 3. Selection of materials and hardware.
3.1. selection and arrangements of hardware used in press tool.
Selection of steel and it's hardware for different elements of press tools.
Module 4. Bending and drawing.:-
4.1. theory of bending,
Spring back and measure to control it,
Calculation for blank development of simple bent components,
Minimum bend radius,
Types of bending dies
4.2. theory of drawing metal flow in drawing and forming operation reduction ratio and redrawing limit, draw clearance, drawings and blank holding force for cylindrical draw only, blank development of cup.
4.3 defects in drawn as well as bent parts, presses selection for drawing/forming operation.
4.4 basic construction and working of bending and drawing dies.
Module 5, miscellaneous dies.
Basic construction and working of shaving dies, trimming dies, compound dies, combination dies, coining dies, embossing dies, simple progressive and compound progressive dies.
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