Re: Berlinetta build and restoration
	
		
			
			
				
	
Nope, not just important for structural use.
Keep the internal radius of the bend to a minimum of 2 x the thickness of the sheet. It’s a rough rule and varies depending on the actual grade of Aluminium, sometimes up to 6 x the thickness.
Especially on thin sheet, do not use a scriber to mark the position of a bend, it exponentially increases the chance of a failure.
i think you would be surprised at the level of vibration, induced by the motion of the car, that could lead to fatigue cracking.
On a Roadster, the bulkhead carrying the pedal box is subject to around 400 Newtons under heavy braking.
					
					Originally posted by scott h
					
						
						
							
							
							
							
								
								
								
								
								
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		Keep the internal radius of the bend to a minimum of 2 x the thickness of the sheet. It’s a rough rule and varies depending on the actual grade of Aluminium, sometimes up to 6 x the thickness.
Especially on thin sheet, do not use a scriber to mark the position of a bend, it exponentially increases the chance of a failure.
i think you would be surprised at the level of vibration, induced by the motion of the car, that could lead to fatigue cracking.
On a Roadster, the bulkhead carrying the pedal box is subject to around 400 Newtons under heavy braking.






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