发明公开
EP3065161A1 ELECTRON GUN, ELECTRON GUN CONTROL METHOD AND CONTROL PROGRAM, AND THREE-DIMENSIONAL SCULPTING DEVICE
审中-公开
ELEKTRONENKANONE，ELEKTRONENKANONENSTEUERUNGSVERFAHREN UND-TEUERUNGSPROGRAMM UND VORRICHTUNG ZUR DREIDIMENSIONALEN FORMUNG
- 专利标题： ELECTRON GUN, ELECTRON GUN CONTROL METHOD AND CONTROL PROGRAM, AND THREE-DIMENSIONAL SCULPTING DEVICE
- 专利标题（中）： ELEKTRONENKANONE，ELEKTRONENKANONENSTEUERUNGSVERFAHREN UND-TEUERUNGSPROGRAMM UND VORRICHTUNG ZUR DREIDIMENSIONALEN FORMUNG
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申请号： EP15778595.7申请日： 2015-01-09
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公开(公告)号： EP3065161A1公开(公告)日： 2016-09-07
- 发明人: SATO, Takashi
- 申请人： Technology Research Association For Future Additive Manufacturing
- 申请人地址： 6F Nihonbashi First Bldg., 2-19, Nohonbashi 1-chome Chuo-ku Tokyo JP
- 专利权人： Technology Research Association For Future Additive Manufacturing
- 当前专利权人： Technology Research Association For Future Additive Manufacturing
- 当前专利权人地址： 6F Nihonbashi First Bldg., 2-19, Nohonbashi 1-chome Chuo-ku Tokyo JP
- 代理机构： TBK
- 国际公布： WO2016110996 20160714
- 主分类号： H01J37/06
- IPC分类号： H01J37/06 ; H01J37/04
摘要：
When an emission current is changed, a decrease in brightness of an electron beam is prevented. An electron gun includes a cathode that emits thermoelectrons, a Wehnelt electrode that focuses the thermoelectrons, a control electrode that extracts the thermoelectrons from a distal end of said cathode, an anode that accelerates the thermoelectrons and irradiates a powder with the thermoelectrons as an electron beam, and an optimum condition collection controller that changes at least one of a bias voltage to be applied to the Wehnelt electrode and a control electrode voltage to be applied to the control electrode, and decides a combination of the bias voltage and the control electrode voltage at which the brightness of the electron beam reaches a peak.
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