Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2007-05-15
2007-05-15
Lin, Kuang Y. (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S071100, C164S312000, C164S900000
Reexamination Certificate
active
10871180
ABSTRACT:
A method of forming a material includes the steps of: vibrating a molten material at an ultrasonic frequency while cooling the material to a semi-solid state to form non-dendritic grains therein; forming the semi-solid material into a desired shape; and cooling the material to a solid state. The method makes semi-solid castings directly from molten materials (usually a metal), produces grain size usually in the range of smaller than 50 μm, and can be easily retrofitted into existing conventional forming machine.
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Han Qingyou
Jian Xiaogang
Meek Thomas T.
Xu Hanbing
Bruckner PC John
Lin Kuang Y.
UT-Battelle LLC
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