发明名称 |
FORMING OF METALLIC GLASS BY RAPID CAPACITOR DISCHARGE FORGING |
摘要 |
A forging apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined“process temperature”between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via forging in a time frame of less than 1 second. |
申请公布号 |
US2012132625(A1) |
申请公布日期 |
2012.05.31 |
申请号 |
US201113272955 |
申请日期 |
2011.10.13 |
申请人 |
KALTENBOECK GEORG;SCHRAMM JOSEPH P.;DEMETRIOU MARIOS D.;JOHNSON WILLIAM L.;CALIFORNIA INSTITUTE OF TECHNOLOGY |
发明人 |
KALTENBOECK GEORG;SCHRAMM JOSEPH P.;DEMETRIOU MARIOS D.;JOHNSON WILLIAM L. |
分类号 |
B23K9/00 |
主分类号 |
B23K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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