Jul 21, 2005 #1 KalleH Structural Sep 16, 2004 17 0 0 FR Does anyone have a reference for the relaxation of screw joints in micrometer as function of aspects such as surface roughness and paint type and paint thickness? Thanks!
Does anyone have a reference for the relaxation of screw joints in micrometer as function of aspects such as surface roughness and paint type and paint thickness? Thanks!
Jul 21, 2005 #2 diamondjim Mechanical Jul 30, 2000 992 0 0 US Do not use paint on interfaces. Upvote 0 Downvote
Jul 22, 2005 Thread starter #3 KalleH Structural Sep 16, 2004 17 0 0 FR That is easy to say if you are not in the heavy vehicle business, where this is standard on chassis, to which brackets are bolted. Upvote 0 Downvote
That is easy to say if you are not in the heavy vehicle business, where this is standard on chassis, to which brackets are bolted.
Jul 23, 2005 #4 Tmoose Mechanical Apr 12, 2003 5,626 0 0 US Someone else posted this fine link. http://www.tech.volvo.se/standard/docs/551121.pdf Section 5.3 discusses a factor to be applied to painted joints Upvote 0 Downvote
Someone else posted this fine link. http://www.tech.volvo.se/standard/docs/551121.pdf Section 5.3 discusses a factor to be applied to painted joints
Jul 25, 2005 Thread starter #5 KalleH Structural Sep 16, 2004 17 0 0 FR I was probably the one who posted the link to the Volvo standards. However, 5.3 is just about torque/tension relationships. Upvote 0 Downvote
I was probably the one who posted the link to the Volvo standards. However, 5.3 is just about torque/tension relationships.
Jul 25, 2005 #6 CoryPad Materials Apr 15, 2002 5,192 0 0 US VDI 2230 has information regarding stress relaxation as a function of surface roughness. VDI 2230 is available from Beuth at: http://www.beuth.de Regards, Cory Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora. Upvote 0 Downvote
VDI 2230 has information regarding stress relaxation as a function of surface roughness. VDI 2230 is available from Beuth at: http://www.beuth.de Regards, Cory Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
Aug 9, 2005 #7 diamondjim Mechanical Jul 30, 2000 992 0 0 US We have provided painted structures for heavy equipment and used plugs to prevent painted surfaces under the washers etc. Upvote 0 Downvote
We have provided painted structures for heavy equipment and used plugs to prevent painted surfaces under the washers etc.