Re: Aluminium 7075-T7351 1

[SAParker]

We are removing Aluminium 7075-T7351 from a part and we need to heat it up to remove it. What is the maximum temperature we can go to without changing the mechanical properties?

We only need to spend about five minutes at that temperature.

 

[CoryPad]

The aging temperature is 315 [°]F (160 [°]C), so you should stay below that.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[SAParker]

Thanks for the post

Does the aging temperature change? According to a data sheet on Matweb* there are 2 aging temperatures aging temperature at 107°C (225°F) then followed by 162 °C (325°F) does the aging temperature change?

*

http://www.matweb.com/search/SpecificMaterialPrint.asp?bassnum=MA7075T73

 

[CoryPad]

The T7351 temper requires a two-stage artificial aging treatment. MIL-H-6088H HEAT TREATMENT OF ALUMINUM ALLOYS lists the following:

215 to 235 [°]F for 6 to 8 hours followed by 315 to 335 [°]F for 24 to 30 hours.

So the aging temperature changes for this particular temper.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.