Discussion
evening all
i need some help regarding *gusseting*
i know 'serious' cars have it on the roll cage, and it originated from aviation, as a clever way of saving weight and increasing strength,
now, im starting a project come the new year, and its going to be housing a 185bhp engine *standard* in what i hope to be a sub 1000kg car, obviously i want to have a serious cage in, and aswell as it looking hard as nails, i understand it stiffens the shell somewhat, and improves safety should i decide to leave the road sometime!
i want to know, does it come in pre cut pieces, or do you cut the hols yourself with a special tool that not just cuts the holes, but pushes them inwards too?
any help would be greatly appreciated!
i need some help regarding *gusseting*
i know 'serious' cars have it on the roll cage, and it originated from aviation, as a clever way of saving weight and increasing strength,
now, im starting a project come the new year, and its going to be housing a 185bhp engine *standard* in what i hope to be a sub 1000kg car, obviously i want to have a serious cage in, and aswell as it looking hard as nails, i understand it stiffens the shell somewhat, and improves safety should i decide to leave the road sometime!
i want to know, does it come in pre cut pieces, or do you cut the hols yourself with a special tool that not just cuts the holes, but pushes them inwards too?
any help would be greatly appreciated!
littleredrooster said:
I wonder what you get if you Google 'gusseting'?
What a lovely word - conjures up all manner of things...
Nothing too dodgy ...What a lovely word - conjures up all manner of things...
http://www.google.com/search?q=gusseting&biw=1...
Crease said:
evening all
now, im starting a project come the new year, and its going to be housing a 185bhp engine *standard* in what i hope to be a sub 1000kg car, obviously i want to have a serious cage in,
185bhp/1000kg that a bit pedestrian ;o)now, im starting a project come the new year, and its going to be housing a 185bhp engine *standard* in what i hope to be a sub 1000kg car, obviously i want to have a serious cage in,
Whoever you get to do your cage will do this in relevant places anyway.
busta said:
To be honest, a sheet of metal attacked with a hole-saw but without the pressed flanges would be 90% as effective and you could have the holes as big as you want and exactly where you liked.
I wouldn't do that, cutting holes but not pressing in a swage will make it much weaker.
60 said:
busta said:
To be honest, a sheet of metal attacked with a hole-saw but without the pressed flanges would be 90% as effective and you could have the holes as big as you want and exactly where you liked.
I wouldn't do that, cutting holes but not pressing in a swage will make it much weaker.Bad idea to attack it yourself without the swaging tool.
freecar said:
60 said:
busta said:
To be honest, a sheet of metal attacked with a hole-saw but without the pressed flanges would be 90% as effective and you could have the holes as big as you want and exactly where you liked.
I wouldn't do that, cutting holes but not pressing in a swage will make it much weaker.Bad idea to attack it yourself without the swaging tool.
I appreciate swaging is the norm in structural components in the aerospace industry but you are working to much finer engineering tolerances than a comparatively over-engineered and unstressed roll cage in a small car.
Dimple dies are what you need OP! http://www.ebay.co.uk/sch/i.html?LH_PrefLoc=2&...
doogz said:
If you're only drilling holes, you'll make it weaker. By swedging them, you're adding strength, increasing local section modulus by adding the depth. You're making the plate stiffer, and less likely to bend between the shell and cage. Well worth doing. Don't just drill them!
Yes you'll be making the gusset itself weaker, but the weaker gusset will still be making the already strong enough cage stronger than with no gusset at all.
busta said:
Dimple dies are what you need OP! http://www.ebay.co.uk/sch/i.html?LH_PrefLoc=2&...
£188 for a 4 piece set? they only take 20 mins on a lathe to makeGassing Station | General Gassing | Top of Page | What's New | My Stuff