PRESS FORGING

This is all about Press-Forging its applications, types and processes.

1. FORGING Forging is term applied to a family of processes where deformation is induced by localized compressive forces. The equipment can be manual or power hammers, presses, or special forging machines. The term forging usually implies hot forging done above the recrystaIlization temperature.

2. Common forging processes include: Open-die drop-hammer forging Impression-die drop forging Press forging Upset forging Automatic hot forging Roll forging

3. FORGING BY PROCESS

4. PRESS FORGING Required when larger pieces or thicker products must be formed. Deformation is analyzed in terms of forces or pressures. Produce a more uniform deformation and flow.

5. PRESS FORGING Heated dies are generally used to:- Reduce heat loss Promote surface flow Enable production of finer details and closer tolerances

6. Forging presses are of two basic types:- Mechanical presses Use means such as cams, cranks etc Because of their mechanical drives, production presses are capable of up to 50 strokes per minute

7. Mechanical Presses

8. Hydraulic Presses Hydraulic presses are :- Slower More massive More costly to operate. usually more flexible Have greater capacity. Can be programmed to have different strokes for different operations and even different speeds within a stroke.

9. Hydraulic Press