All Questions
3 questions
5
votes
2
answers
298
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higher viscosity base oil instead of better lubrication results in worse
UPDATE:
The problematic "symptom" that I try to fix, is the static friction of two sliding plastic parts.
This is about a keyboard key switch that was made during the 80s. The problem/issue ...
1
vote
0
answers
33
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What is the viscous component in viscoelastic materials? [duplicate]
All real solid materials are in certain way viscoelastic, because an ideal fully elastic material doesn't exist as well as a fully viscous solid material. According to rheologic models it is possible ...
- 111
1
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0
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Near melting thermoplastic material accumulates in the sharper corners. What is this phenomenon?
I have a part made of a thermoplastic material. When I heat it up and cool it down, the dimension of the part changes non-uniformly. Somehow the melted material tries to fill the sharper corners. So ...
- 197