发明名称 |
MULTIPLE MATERIAL SYSTEMS AND ASSISTED POWDER HANDLING FOR SELECTIVE BEAM SINTERING |
摘要 |
<p>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 (40) controlling a laser (30) to direct the laser energy onto the powder (26) to produce a sintered mass. The computer (40) 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 (64) is scanned over a layer of powder (57) and the beam is switched on to sinter only the powder within the boundaries of the cross-section. Powder is applied and successive layers 54, 55, 56, 57) 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 (901, 902) or coated (1001, 1002) materials.</p> |
申请公布号 |
CA2024592(A1) |
申请公布日期 |
1991.03.06 |
申请号 |
CA19902024592 |
申请日期 |
1990.09.04 |
申请人 |
BOARD OF REGENTS, UNIVERSITY OF TEXAS SYSTEM (THE) |
发明人 |
BOURELL, DAVID L.;MARCUS, HARRIS L.;BARLOW, JOEL W.;BEAMAN, JOSEPH J.;DECKARD, CARL R. |
分类号 |
B29C67/00;B22F3/00;B22F3/10;B22F3/105;B22F7/02;B23K26/34;B32B37/00;C04B35/64;(IPC1-7):B22F3/10;B23K26/00 |
主分类号 |
B29C67/00 |
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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