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1.发明公开APPARATUS AND METHOD FOR PRODUCING A THREE-DIMENSIONAL WORK PIECE WITH IMPROVED GAS FLOW 有权用于生产具有改进的气流的三维工件的装置和方法
公开(公告)号：EP3321003A1
公开(公告)日：2018-05-16
申请号：EP16198446.3
申请日：2016-11-11
CPC分类号： B22F3/1055 , B22F2003/1056 , B29C64/153 , B29C64/20 , B33Y10/00 , B33Y30/00 , Y02P10/295
摘要： An apparatus (10) comprises a process chamber (12) accommodating a carrier (14) for receiving a raw material powder. An irradiation device (16) of the apparatus (10) is configured to selectively irradiate electromagnetic or particle radiation onto the raw material powder on the carrier (14) in order to produce a work piece by an additive layer construction method, wherein a transmission element (22) allows the transmission of the electromagnetic or particle radiation into the process chamber (12). The apparatus (10) further comprises a gas inlet (26) and a gas outlet (32) for supplying and discharging gas to and from the process chamber (12) which are configured to generate a protective gas stream (F1, F2) for protecting the transmission element (22) from being contaminated by impurities present in the process chamber (12). The gas inlet (26) comprises a gas permeable, porous component (36) forming a gas inlet area (A).
摘要翻译： 一种设备（10）包括容纳用于接收原材料粉末的载体（14）的处理室（12）。 设备（10）的辐照装置（16）被配置为选择性地将电磁辐射或粒子辐射照射到载体（14）上的原材料粉末上，以便通过添加层构造方法产生工件，其中传输元件 （22）允许将电磁或粒子辐射传输到处理室（12）中。 所述设备（10）还包括用于向所述处理室（12）供应气体和从所述处理室（12）排出气体的气体入口（26）和气体出口（32），所述气体入口和所述气体出口被配置为产生保护气流（F1，F2） 传输元件（22）不被处理室（12）中存在的杂质污染。 气体入口（26）包括形成气体入口区域（A）的可透气的多孔部件（36）。
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公开(公告)号：EP3928898A1
公开(公告)日：2021-12-29
申请号：EP20182341.6
申请日：2020-06-25
IPC分类号： B22F3/105 , B29C64/153 , B29C64/371 , B33Y10/00 , B33Y30/00
摘要： A process chamber housing 1 for an additive manufacturing apparatus comprising a process chamber with a bottom 9, a ceiling 10 and walls 11, 12, 21, 22 jointly enclosing a volume of the process chamber 5, with a gas inlet 6 in a front wall 21 and with a gas outlet 7 in a rear wall 22 of the side walls 11, 12, 21, 22, wherein the gas inlet 6 and the gas outlet 7 are positioned at opposite sides of an opening 91 the bottom and both facing towards the each other allows for an improved removal of smoke out of the process chamber if the gas inlet 6 has a width w i , the opening 91 has a width w s and the gas outlet has a width w o , obeying at least one of the relations (i) w i ≥ w s ± 4 cm and w o ≥ w s ± 4 cm ; (ii) w i ≥ w s and/or w o ≥ w s ; and/or (iii) w i ≥ w s + 1 cm and/or w o ≥ w s + 1 cm .
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公开(公告)号：EP3928900A1
公开(公告)日：2021-12-29
申请号：EP21181342.3
申请日：2021-06-24
IPC分类号： B22F3/105 , B29C64/153 , B29C64/371 , B33Y10/00 , B33Y30/00 , B22F10/20 , B22F12/50 , B22F12/70 , B29C64/20 , B29C64/25 , B29C64/321 , B33Y40/00
摘要： A process chamber housing 1 for an additive manufacturing apparatus comprising a process chamber with a bottom 9, a ceiling 10 and walls 11, 12, 21, 22 jointly enclosing a volume of the process chamber 5, with a gas inlet 6 in a front wall 21 and with a gas outlet 7 in a rear wall 22 of the side walls 11, 12, 21, 22, wherein the gas inlet 6 and the gas outlet 7 are positioned at opposite sides of an opening 91 the bottom and both facing towards the each other allows for an improved removal of smoke out of the process chamber if the gas inlet 6 has a width W i' the opening 91 has a width W s and the gas outlet has a width W o , obeying at least one of the relations (i) W i ≥ W s ± 4 cm and W o ≥ W s ± 4cm; (ii) W i ≥ W s and/or W o ≥ W s ; and/or (iii) W i ≥ W s + 1 cm and/or W o ≥ W s + 1 cm .
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公开(公告)号：EP3321003B1
公开(公告)日：2019-01-09
申请号：EP16198446.3
申请日：2016-11-11
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