公开(公告)号：US07244323B2

公开(公告)日：2007-07-17

申请号：US10646599

申请日：2003-08-21

Applicant: Dawn White ,  David Carmein ,  Shyam Keshavmurthy

Inventor： Dawn White ,  David Carmein ,  Shyam Keshavmurthy

IPC: B32B37/00

CPC classification number: B29C37/00 ,  B22F3/004 ,  B22F2003/1046 ,  B22F2998/00 ,  B29C35/0261 ,  B29C37/0067 ,  B29C64/141 ,  B29C64/40 ,  B33Y10/00 ,  B22F3/008

Abstract: Materials and methods inhibit the localized build-up of material with respect to certain additive manufacturing processes, including those based on ultrasonic consolidation. Where an object is fabricated by consolidating material increments from a feedstock in accordance with a description of the object, the invention prevents the consolidation in specified regions to provide for an intrinsic support or to otherwise build a part or component in accordance with the description. The object being fabricated, the feedstock, or both, may be treated so as to inhibit the consolidation of material increments in the localized area. That is, such treatment may affect the surface chemistry of the feedstock to prevent local bonding, or the treatment may be applied to a previously built surface of the object. The treatment may include the introduction of an oxidizer, such as a metal nitrate, chlorate, chromate, peroxide, or manganate; a base or alkali; or a coating of a lubricious material such as tin, Teflon, or petroleum distillates to prevent the breakup of an oxide layer.

Abstract translation: 材料和方法抑制了某些添加剂制造工艺（包括基于超声波固结的加工制造过程）材料的局部积聚。 在通过根据对象的说明从原料合并材料增量来制造物体的情况下，本发明防止在特定区域中的合并提供固有支撑件或根据描述构建零件或部件。 可以处理正在制造的物体，原料或两者，以便抑制在局部区域中的材料增量的固结。 也就是说，这种处理可能影响原料的表面化学性质，以防止局部粘合，或者可以将处理施加到物体的先前构建的表面上。 处理可以包括引入氧化剂，例如金属硝酸盐，氯酸盐，铬酸盐，过氧化物或锰酸盐; 碱或碱; 或润滑材料如锡，特氟隆或石油馏出物的涂层以防止氧化物层的分解。