roller) 사에 넣어 가압함으로써 두께 또는 단면적을 감소시키고 길이방향으로 늘리는 가공이다.
3) 압출(押出 ; extrusion)
각종 단면재(斷面材) 및 관재(管材)를 얻기 위하여 소성이 큰 상태의 재료를 container에 넣고 강력한 압력으로 die orifice를 통하여 밀어내는 가공이다.
4) 인발(引拔 ; drawing)
taper
Elasticity)이라고 하면 그에 반대되는 성질을 소성(Plasticity)라고 할 수 있다. 즉, 소성은 물체에 작은 외력을 가하여도 변형하지 않고, 어느 정도(항복점) 이상의 외력을 가하면 변형하고 외력을 제거하여도 원래의 형상으로 되돌아가지 않는 성질을 말한다.
(2) 냉간 및 열간 소성가공의 특징
a) 냉간가
elastic comes out and rubs your butt.
That leaves the auto factory.
The auto factory, then,
employed everybody in town.
Everybody owed their living,
in some way, to that factory.
These people worked really hard.
Then the factory closed.
If you come and open up that factory,
these people will work harder for you.
I tell you, this is a great town,
these are great people,
and I m willing to do anyth
elasticity), which can cancel or make negligible the resonance frequency change due to the added mass.[6–8] The induced cantilever stiffness change can produce a resonance frequency shift as high as the added mass, but increasing the microcantilever resonance frequency, depending on the attached protein density and thickness and the cantilever length.[9] Actually, this is one of the questio
3. Characterization methods
Fig1. Cross-section of products
1) PVC flooring
A. Existing flooring materials
i. -Resilient flooring is made of material that has some elasticity. It includes many different manufactured products including linoleum, sheet vinyl, vinyl composition tile (VCT), cork (sheet or tile), rubber, and others. Performance surfaces used for dance or athletics are