Metal Forming Advantages: Low metal expense High productivity High accuracy of sizes and quality...
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Transcript of Metal Forming Advantages: Low metal expense High productivity High accuracy of sizes and quality...
Metal FormingAdvantages:
Low metal expense High productivity High accuracy of sizes and quality of
the surface Improvement of structure and
increase in mechanical characteristics of metal
Metal Forming Classification
Types of metal forming
Fabrication of shapes Fabrication of billets and machine parts
Rolling Drawing Forging Hot Cold Pressing die forging sheet-metal
stamping
Physical Grounds of Metal Forming
Elastic Plastic Fracture
deformation deformation
Physical Grounds of Metal Forming
Laws of plastic deformation
1. The law of conservation of volume
Physical Grounds of Metal Forming
Laws of plastic deformation
2. The law of the least resistance 3. The law of shear stress
Physical Grounds of Metal Forming Heating of billets:
Chamber furnace Continuous furnace
Electric contact (а) and induction (b) heaters:1 – billet, 2 – inductor, 3 – copper contact