Spot face specifications

[CoryPad]

I am compiling best practices for bolted joint design. I would like people to share any drawing specifications they use for spot faced holes for bolted joints. I was thinking about flatness, perpendicularity and surface finish. Thanks for your help.

Cory

 

[ctopher]

Hope this helps.
thread1103-152443

Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 08
ctopher's home (updated Aug 5, 2008)
ctopher's blog
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[KENAT]

Cory, one thing to condider would be whether you put a slight chamfer/csk for the slight radius where the shank joins the head on the bolt/screw.

Not sure I've ever seen any of the 3 things you explicitly list specifically stated for a spot face. That's not to say they souldn't be but I don't recall seeing it.

We have a chart for c'bores, spotfaces etc. based on the values in Machineries for inch counterbores. We use same dia for c'bores and spot faces.



KENAT,

Have you reminded yourself of faq731-376 recently, or taken a look at posting policies:

http://eng-tips.com/market.cfm?

 

[ctopher]

Also take in account any finish you may add.

Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 08
ctopher's home (updated Aug 5, 2008)
ctopher's blog
SolidWorks Legion