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Old 06-23-2012, 02:10 AM
B&SFTW B&SFTW is offline
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what ever happened to this?

my grandpa has a 1970 sears mower with a cast magnesium deck. wh did they stop doing this? for pete's sake, it's a push mower with a thicker deck than most mowers today, with the only exceptions being the really high end decks. I can understand not making them out of magnesium, but aluminum would be nice.
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Old 06-23-2012, 09:59 AM
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MOturkey MOturkey is offline
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They crack.
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Old 06-23-2012, 10:04 AM
Mark Oomkes Mark Oomkes is online now
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It would make for a pretty fire.........
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Old 06-23-2012, 11:25 AM
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Richard Martin Richard Martin is online now
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Steel is significantly easier to work with.
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Old 06-23-2012, 02:10 PM
pugs pugs is offline
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Quote:
Originally Posted by B&SFTW View Post
my grandpa has a 1970 sears mower with a cast magnesium deck. wh did they stop doing this? for pete's sake, it's a push mower with a thicker deck than most mowers today, with the only exceptions being the really high end decks. I can understand not making them out of magnesium, but aluminum would be nice.
Look at a high end or commercial Toro.
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Old 06-23-2012, 02:39 PM
hackitdown hackitdown is offline
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I have a homeowner Toro Personal Pace with an aluminum deck.
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Old 06-23-2012, 04:28 PM
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Bumpmaster Bumpmaster is offline
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Dad has a Magnesium rowboat from the early 50's. Think the scrap yard said they would give him $50 for it.
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Old 06-24-2012, 12:43 AM
B&SFTW B&SFTW is offline
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I understand the issues with magnesium, I have an aviation mechanic degree. I'm saying a cast aluminum alloy deck would be comparable. @RICHARD MARTIN, casting aluminum isn't that hard, I know it's not as quick as stamping a cheap piece of barely 1mm thick sheet steel then stamping again to clean up the edges, but I would think it would be significantly cheaper than sitting there welding up a thicker steel deck that you can't stamp.

I also realize cast metals like to crack more than forged (sheet) metals, but how much of an issue was it, really? that's nice that toro is doing this, still, and I've even seen some plastic decks, but it would be nice to see more manufacturers step up and offer alternatives to steel.
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Old 06-24-2012, 01:26 AM
herler herler is online now
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Back in the 1970's steel was a common metal of which we had so much of we thought we'd never run out, we made everything of steel, a lot of it was used, it was almost as cheap as dirt, cars used to be made of all steel and far thicker steel than is used today, engines were made of pure steel, aluminum blocks were unheard of and rarely used except perhaps certain exotic high performance automobiles.

The reason was because steel was durable, it was tough yet it flexed under stress and could be relied on,
look at today's hand tools all made of alloys, back when hand tools were made of pure steel.

Today steel is a rare, and expensive metal.
If it helps put things in perspective read on...

Quote:
Originally Posted by Scott Barnes View Post
Dad has a Magnesium rowboat from the early 50's. Think the scrap yard said they would give him $50 for it.
$50 for scrap magnesium today is a lot more money than the entire rowboat cost in the early 1950's so they offered your dad more cash just for the junk value than it cost new back when, that is how rare steel and magnesium are today.

Imagine getting paid more for the light bulb than the entire lamp cost.

Last edited by herler; 06-24-2012 at 01:31 AM.
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Old 06-24-2012, 01:43 AM
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TuffWork TuffWork is offline
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Herler's post was great. The only thing I have to add was that I ride street bikes. "crotch rockets" if you want to call them that. Most of the new frames are magnesium. If you've seen one of these bikes after running into a car you would see why the cracking issue would be intolerable in a new deck. They crack with only a small amount of pressure and shatter with a lot.
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