发明名称 |
Multiple material systems for selective beam sintering |
摘要 |
A method and apparatus for selectively sintering a layer of powder to produce a part comprising a plurality of sintered layers. The apparatus includes a computer controlling a laser to direct the laser energy onto the powder to produce a sintered mass. The computer either determines or is programmed with the boundaries of the desired cross-sectional regions of the part. For each cross-section, the aim of the laser beam is scanned over a layer of powder and the beam is switched on to sinter only the powder within the boundaries of the cross-section. Powder is applied and successive layers sintered until a completed part is formed. Preferably, the powder comprises a plurality of materials having different dissociation or bonding temperatures. The powder preferably comprises blended or coated materials.
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申请公布号 |
US4944817(A) |
申请公布日期 |
1990.07.31 |
申请号 |
US19890402694 |
申请日期 |
1989.09.05 |
申请人 |
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM |
发明人 |
BOURELL, DAVID L.;MARCUS, HARRIS L.;BARLOW, JOEL W.;BEAMAN, JOSEPH J.;DECKARD, CARL R. |
分类号 |
B05C19/00;B22F3/00;B22F3/105;B22F7/02;B23K26/08;B23K26/34;B29C35/04;B29C41/12;B29C41/46;B29C67/00;C23C24/08;C23C24/10;C23C26/02;G05B19/41 |
主分类号 |
B05C19/00 |
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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