发明名称 Method for producing a three-dimensional object and stereolithography machine employing said method
摘要 Method for producing a three-dimensional object in layers by way of a stereolithography machine (1) including a container (2) suited to contain a liquid substance (3), structure (5) suited to emit predefined radiation (4) suited to selectively solidify a layer (6) of the liquid substance (3) adjacent to the bottom (2a) of the container (2), and an actuator (8) suited to move the solidified layer (6a) with respect to the bottom (2a). The method includes selectively solidifying the liquid layer (6); separating the solidified layer (6a) from the bottom (2a) through a movement (11) suited to move them away from each other, including a plurality of shifts (12, 12a, 12b, 12c) for corresponding predefined lengths, spaced by corresponding intermediate stops (14, 14a, 14b) for corresponding predefined time intervals (15, 15a, 15b). The intermediate stops are carried out before the solidified layer has become completely detached from the bottom.
申请公布号 US9446557(B2) 申请公布日期 2016.09.20
申请号 US201213992487 申请日期 2012.01.18
申请人 DWS S.R.L. 发明人 Zenere Sergio;Fortunato Roberto
分类号 B29C35/08;B29C67/00 主分类号 B29C35/08
代理机构 Husch Blackwell LLp 代理人 Husch Blackwell LLp
主权项 1. A method for producing a three-dimensional object in layers by means of a stereolithography machine of the type comprising: a container for containing a liquid substance suited to be solidified through exposure to predefined radiation; means for emitting said predefined radiation, suited to selectively irradiate a layer of said liquid substance having a predefined thickness and arranged adjacent to the bottom of said container in order to solidify it; actuator means suited to move said solidified layer with respect to said bottom at least according to a direction perpendicular to said bottom; said method comprising the following operations: selectively irradiating said layer of liquid substance in such a way as to obtain said solidified layer; separating said solidified layer from said bottom through a mutual separation movement having a predefined extent, wherein said separation movement comprises a plurality of separation shifts for corresponding predefined lengths, spaced by corresponding intermediate stops for corresponding predefined time intervals, said intermediate stops being carried out before said solidified layer has become completely detached from said bottom.
地址 Zane IT