公开(公告)号：US20160001401A1

公开(公告)日：2016-01-07

申请号：US14766627

申请日：2014-02-13

Applicant: RENISHAW PLC

Inventor： Marc Frank DIMTER ,  Ralph Markus MAYER ,  Thomas HESS

IPC: B23K26/142 ,  B23K26/08 ,  B23K26/342

CPC classification number: B23K26/142 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2999/00 ,  B23K26/0869 ,  B23K26/342 ,  B28B1/001 ,  B29C64/153 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2003/1057 ,  B22F2202/11 ,  B22F2201/02 ,  B22F2201/10

Abstract: Selective laser solidification apparatus is described that includes a powder bed onto which a powder layer can be deposited and a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction. A laser scanning unit is provided for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern. The required pattern is formed from a plurality of stripes or stripe segments that are formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction. The stripe formation direction is arranged so that it always at least partially opposes the predefined gas flow direction. A corresponding method is also described.

Abstract translation: 描述了选择性激光凝固装置，其包括可以沉积粉末层的粉末床和用于使气流沿着预定的气体流动方向通过粉末床的气流单元。 提供激光扫描单元，用于扫描粉末层上的激光束，以选择性地固化至少部分粉末层以形成所需图案。 所需的图案由通过沿着条纹形成方向沿着条纹或条纹段推进激光束而形成的多个条纹或条带形成。 条纹形成方向被布置成使得其总是至少部分地与预定的气体流动方向相对。 还描述了相应的方法。

公开(公告)号：US20230122273A1

公开(公告)日：2023-04-20

申请号：US18084029

申请日：2022-12-19

Applicant: RENISHAW PLC

Inventor： Marc Frank DIMTER ,  Ralph Markus MAYER ,  Thomas HESS

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/28 ,  B23K26/142 ,  B23K26/342 ,  B23K26/08

Abstract: Selective laser solidification apparatus is described that includes a powder bed onto which a powder layer can be deposited and a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction. A laser scanning unit is provided for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern. The required pattern is formed from a plurality of stripes or stripe segments that are formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction. The stripe formation direction is arranged so that it always at least partially opposes the predefined gas flow direction. A corresponding method is also described.

公开(公告)号：US20200023463A1

公开(公告)日：2020-01-23

申请号：US16587146

申请日：2019-09-30

Applicant: RENISHAW PLC

Inventor： Marc Frank DIMTER ,  Ralph Markus MAYER ,  Thomas HESS

IPC: B23K26/142 ,  B23K26/342 ,  B23K26/08 ,  B29C64/386 ,  B29C64/153 ,  B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Selective laser solidification apparatus is described that includes a powder bed onto which a powder layer can be deposited and a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction. A laser scanning unit is provided for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern. The required pattern is formed from a plurality of stripes or stripe segments that are formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction. The stripe formation direction is arranged so that it always at least partially opposes the predefined gas flow direction. A corresponding method is also described.