发明名称 |
Controlled flattening of sheet materials |
摘要 |
Controlling a flatness of a first surface of a sheet material can include: (a) determining a first surface contour of the first surface of the sheet; (b) applying compressive stresses to one or more portions of the first surface of the sheet after the determination of the first surface contour of the sheet; (c) annealing compressive stresses in one or more portions of the first surface of the sheet after the determination of the first surface contour of the sheet; (d) determining a second surface contour of the first surface of the sheet after the compressive stresses have been applied to, and annealed from, the sheet; (e) comparing the second surface contour to a threshold flatness; and (f) performing (b)-(e) one or more times until the determined second surface contour is less than the threshold flatness. |
申请公布号 |
US8959967(B1) |
申请公布日期 |
2015.02.24 |
申请号 |
US201313841483 |
申请日期 |
2013.03.15 |
申请人 |
Google Inc. |
发明人 |
Hamburgen William;Bliss Michael John |
分类号 |
B21D37/10;B21D1/00 |
主分类号 |
B21D37/10 |
代理机构 |
Brake Hughes Bellermann LLP |
代理人 |
Brake Hughes Bellermann LLP |
主权项 |
1. A method for controlling a flatness of a first surface of a sheet material, the method comprising:
(a) determining a first surface contour of the first surface of the sheet; (b) applying compressive stresses to one or more portions of the first surface of the sheet after the determination of the first surface contour of the sheet; (c) annealing compressive stresses in one or more portions of the first surface of the sheet after the determination of the first surface contour of the sheet; (d) determining a second surface contour of the first surface of the sheet after the compressive stresses have been applied to, and annealed from, the sheet; (e) comparing the second surface contour to a threshold flatness; and (f) performing (b)-(e) one or more times until the determined second surface contour is less than the threshold flatness. |
地址 |
Mountain View CA US |