Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Question about Music Wire Stress Relief

Status
Not open for further replies.
l0aded

l0aded

Mechanical
Joined
Jun 9, 2015
Messages
2
Location
US
I have done some research on the topic but came up with nothing conclusive. Is there a certain time frame after forming a music wire spring that is crucial in the stress relief process (either by presetting or by heat treatment)? I have seen one article done awhile back that came back inconclusive for stress relief by heat treatment but they only compared 5 minutes vs 24 hours after forming the spring. I am curious of the difference between presetting or heat stress relieving the spring within 24 hours vs 5 days+.

Also how much does the diameter of the wire matter for stress relieving by heat? Most guidelines layout 200-230C for 10-30 minutes but if the wire diameter is very low (~.012" to .014") can less time be used?

The music wire has no coating or finish (pre or post).

Thanks!
 
Sort by date Sort by votes
Presetting is the opposite of stress relief, the process intentionally induces favorable negative residual stresses into the spring wire.
 
Upvote 0 Downvote
My mistake, I am trying to lessen the effects of preset and was wondering if there is a time frame when presetting has a greater effect. My compressed height is fairly close to solid height in my applicaiton.

Also regarding the heat treatment, is there a critical time frame where it is more effective for stress relief or can it be done at any time after forming?

According to article: The time interval after coiling and relieving is negligble.
 
Upvote 0 Downvote
I would not recommend less than 10 minutes for the thermal treatment time, even with your small wire diameter. In terms of time interval after coiling, there is not going to be any meaningful effect, as your reference notes.
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

kokerkov
  • Locked
  • Question Question
Spring wire material replaceable?
Replies
2
Views
982
btrueblood
btrueblood
kokerkov
  • Locked
  • Question Question
Anyone know about die spring color code(US version)?
Replies
2
Views
1K
kokerkov
kokerkov
Big_Deddie
  • Locked
  • Question Question
Vacuum Relief Compression Spring Calculation..spinning my wheels
Replies
4
Views
493
Big_Deddie
Big_Deddie
mp87
  • Locked
  • Question Question
Most stressed coils in helical compression springs
Replies
5
Views
349
MikeHalloran
MikeHalloran
JonnyRotten
  • Locked
  • Question Question
basic opposing springs question
Replies
6
Views
591
israelkk
israelkk

Part and Inventory Search

Sponsor

Back
Top