Average temperature required for hot forging of aluminium alloys - Basic Mechanical Engineering

Q.  What is the average temperature required for hot forging of aluminium alloys?
- Published on 02 Sep 15

a. 1100 oC to 1200 oC
b. 350 oC to 525 oC
c. 2000 oC to 2500 oC
d. None of the above

ANSWER: 350 oC to 525 oC
 

    Discussion

  • Sravanthi    -Posted on 11 Nov 15
    - The process in which a metal is first heated and then plastically deformed by using a hand hammer or press to obtain the an object of desired shape and size is called as forging.

    - The different types of forging processes based on metal working conditions are:

    1) Hot forging process: The deformation of a material is carried out at temperature greater than recrystallization temperature.

    - Aluminum alloys require average temperature of 350° C to 525° C and steel components require average temperature of 1100° C to 1200° C. Straining hardening of materials is avoided in hot forging process.

    2) Cold forging process: The deformation of a material is carried out at temperature below its recrystallization temperature.

    - This process is carried out at room temperature.

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