Hood strength question
Laughing Gas
Joined: Sep 2017
Posts: 1,136
Likes: 264
From: Southwestern Pa.
Ahhhhhh Tawny....
Yep, the SD is just a bit to tall for that kind of a hood ornament.
But BMWs apparently aren't...
https://jalopnik.com/texas-dealershi...ha-5935667/amp
Yep, the SD is just a bit to tall for that kind of a hood ornament.
But BMWs apparently aren't...
https://jalopnik.com/texas-dealershi...ha-5935667/amp
Mountain Pass
Joined: Feb 2007
Posts: 245
Likes: 1
From: Sandy, OR
The aluminum, to me, seems pretty light duty. Went to Beach for 4th of July and heard a dink noise while everyone was shooting fireworks. A plastic tip from a large firework fell out of the sky and landed on my hood. You’d never notice it, but if I point it out to ya you’d definitely see the small dent. Oh well...
I’d guess waking on it would cause easily noticeable damage
I’d guess waking on it would cause easily noticeable damage
Super Moderator
Joined: Dec 2011
Posts: 13,302
Likes: 6,077
The mil thickness (or thinness) of the aluminum sheet on the Ford cabs is the issue. Many truck tool boxes are made from aluminum also, but they do not dent, as they are thicker. We can walk across the lids of crossbed tool boxes.
Peterbilt and Kenworth cabs are also made from aluminum, but with much thicker sheet material. But if Ford were to thicken the aluminum sheet to be equivalent to that of a Peterbilt cab, the weight savings claimed would be lost
I think of target practice with a BB gun... with a can of soda, and a can of soup as targets. Even if both cans were of the exact same thickness, the aluminum sheet will deflect / distort/ and actually tear more from the impact of the BB than the steel sheet. .
Durability is not an all encompassing adjective. Thin sheeting, combined with 3 dimensional structural ribbing, can be reasonably durable as a whole structure, and at the same time very weak at a concentrated point of impact, like a hailstone or a woman's high heel.
Peterbilt and Kenworth cabs are also made from aluminum, but with much thicker sheet material. But if Ford were to thicken the aluminum sheet to be equivalent to that of a Peterbilt cab, the weight savings claimed would be lost
I think of target practice with a BB gun... with a can of soda, and a can of soup as targets. Even if both cans were of the exact same thickness, the aluminum sheet will deflect / distort/ and actually tear more from the impact of the BB than the steel sheet. .
Durability is not an all encompassing adjective. Thin sheeting, combined with 3 dimensional structural ribbing, can be reasonably durable as a whole structure, and at the same time very weak at a concentrated point of impact, like a hailstone or a woman's high heel.
Mountain Pass
Joined: Feb 2010
Posts: 140
Likes: 17
From: Brantford Ontario
Posting Guru
Joined: Feb 2018
Posts: 1,555
Likes: 516
Alloy also makes a difference. I don't know what grades Ford uses, but the BB gun test firing into 20 gauge 2024-0 and same grade in 7075-T6 would have a different result. Regardless, the hood is largely cosmetic and doesn't carry loads.
Super Moderator
Joined: Dec 2011
Posts: 13,302
Likes: 6,077
Of course you do. EVERYBODY knows Ford uses M.I.L.I.T.A.R.Y. G.R.A.D.E. aluminum.
(Some soldiers drink soft drinks).
I believe it was reported that Ford is using 6061 for at least parts of the body structure.
Some alumiduty owners might rather have the cosmetics of a twenties Tawny on their hood. I can recall a time many years ago when I asked a young lady to get off of the hood of my car. She was trying to stop me from leaving. At the time, I couldn't handle a few dents. Or her. In retrospect, I'd carry that load in stride, had I had the prism of perspective that only comes later in life, when it is far too late.
(Some soldiers drink soft drinks).
I believe it was reported that Ford is using 6061 for at least parts of the body structure.
Some alumiduty owners might rather have the cosmetics of a twenties Tawny on their hood. I can recall a time many years ago when I asked a young lady to get off of the hood of my car. She was trying to stop me from leaving. At the time, I couldn't handle a few dents. Or her. In retrospect, I'd carry that load in stride, had I had the prism of perspective that only comes later in life, when it is far too late.
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