几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 - 查看单个帖子

bending round bar
can anyone advise what bend radius should be used for 16mm diameter round bar?
are there any issues with cracking / materials that need to be considered?
thanks
check out our whitepaper library.
i believe this will depend upon the material properties of the bar. for instance, for higher strength material you need a larger bend radius to prevent cracking.
heating either prebend or post stress will allow tighter radius bends.
dont know if this is of any help but the british standard gives minimum bending radius of 2d for mild steel and 3d for high yield for 6-20 mm rebar
thanks to all for the quick response.
are the 2d and 3d figures for hot or cold bending?

cold bending

__________________
借用达朗贝尔的名言：前进吧，你会得到信心!
[url="http://www.dimcax.com"]几何尺寸与公差标准[/url]

2009-09-07, 03:30 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	bending round bar bending round bar can anyone advise what bend radius should be used for 16mm diameter round bar? are there any issues with cracking / materials that need to be considered? thanks check out our whitepaper library. i believe this will depend upon the material properties of the bar. for instance, for higher strength material you need a larger bend radius to prevent cracking. heating either prebend or post stress will allow tighter radius bends. dont know if this is of any help but the british standard gives minimum bending radius of 2d for mild steel and 3d for high yield for 6-20 mm rebar thanks to all for the quick response. are the 2d and 3d figures for hot or cold bending? cold bending __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]