I have tried heating one end with hot water and the other with cold water but they still can't come apart. Any ideas?
2006-08-31 04:32:12 · 10 answers · asked by team_eon 1 in Science & Mathematics ➔ Physics
I think you need a torque wrench
2006-08-31 04:37:29 · answer #1 · answered by Dan 5 · 1⤊ 2⤋
You have the right idea, but insufficient application of it...
Use a blow torch to heat one of the metals and ice water to cool the other.
After each failed attempt, liberally spray a thin penatrating oil into the joint between the two metals. Over time this oil will loosen the grip the metals have on each other and the joint will break free.
Unless, that is, the joint is between something like Aluminum and Stainless Steel. In that case, the joint has welded itself together by electrolisis. That one is a real pill to undo. You must use lots of torque without destroying what you seek to recover. Mechanical Shock sometimes helps - use a mallet to strike the first object that was heated.
2006-09-03 23:39:24 · answer #2 · answered by zahbudar 6 · 0⤊ 0⤋
Use a power screwdriver to unscrew the screw. Or use a power drill with a slight smaller sized drill bit that is smaller than the screw circumference to drill through, destroying the screw.
2006-08-31 15:16:26 · answer #3 · answered by calvin o 5 · 0⤊ 0⤋
You should loosen the screw using oil, such as WD40. Heating up the metal willl only make them more tight.
2006-08-31 14:36:11 · answer #4 · answered by Tan D 7 · 0⤊ 0⤋
Why don't you try using impact drivers..it always works for me..
if u never see one before..just take a look at all Motorcycles workshop..cz motorcycles have a lot of stubborn screws..
2006-09-01 17:10:24 · answer #5 · answered by aferostone 2 · 0⤊ 0⤋
heating doesnt work bcos it expands both metals and screw. try to remove heat from the screw by using a heat sink (such as tweezers).
As the two are metals, try greesing... put some oil over the screw and give some sort of jerk to the joint. The oil will seep in.
2006-08-31 04:55:53 · answer #6 · answered by MobiGuru 2 · 0⤊ 2⤋
WD40 and sheer brute force. Heat is useless if it's all in tight. A torque wrench (a wrench that has a really long handle), as our friend Danny o suggests, is also a good idea.
2006-08-31 04:37:41 · answer #7 · answered by flammable 5 · 0⤊ 2⤋
Drill out the screw. Put the pieces in a vice and take a drill to the screw.
2006-08-31 04:37:52 · answer #8 · answered by BOB W 3 · 0⤊ 2⤋
Try turning the screw counter-clockwise instead of clockwise. Righty tighty, lefty loosey...
2006-08-31 05:29:44 · answer #9 · answered by Anonymous · 0⤊ 0⤋
It really depends on what the "pieces of metal" are.
Try an impact wrench.
2006-08-31 04:37:58 · answer #10 · answered by cirestan 6 · 0⤊ 2⤋