hexagon logo
Register Sign in
  • Replies 17 replies
  • Subscribers 222 subscribers
  • Views 180 views
  • Users 0 members are here
Options
Related

Restrain a part

slipper57
This is really, sorta, not a CMM question.... but then again, it is. And I have never been disappointed by the knowledge of this forum! ANYWAYS...

I have a drawing, its a sheet metal part, that in the notes says I can restrain to 10 lbs MAX.?? (to datums). How would anyone rate the poundage of a clamp holding down a part, on a CMM table? Kind of a grey area. When we have a machined parts its suppose to be measured in the 'free state' ?? Again... the part will move if you do not clamp them down. Any thoughts?? Its funny because an "engineer" will say.. "thats suppose to be in the free state" , only if their part isn't correct. And I tell them... .show me how YOUR supplier inspects this part without holding it down....nothing ever becomes of this.

Any thoughts would be appreciated!
Parents
  • If it's going to be a consistent product you measure, get a restraining fixture made to clear all your measurement features and allow the restrained condition to occur. Make the fixture weight 10lbs by adding weights or mass to it when machining it. once it's established @10lbs lock the fixture configuration down
Reply
  • If it's going to be a consistent product you measure, get a restraining fixture made to clear all your measurement features and allow the restrained condition to occur. Make the fixture weight 10lbs by adding weights or mass to it when machining it. once it's established @10lbs lock the fixture configuration down
Children
No Data
© 2024 Hexagon AB and/or its subsidiaries. Privacy Policy | Cloud Services Agreement