公开(公告)号：US20210379828A1

公开(公告)日：2021-12-09

申请号：US17407917

申请日：2021-08-20

Applicant: RENISHAW PLC

Inventor： David Roberts MCMURTRY ,  Christopher John SUTCLIFFE ,  Robin Geoffrey WESTON ,  Paul CAMPTON ,  David John WHITTON ,  David BEEBY

IPC: B29C64/241 ,  B29C64/321 ,  B29C64/245 ,  B29C64/268 ,  B29C64/205 ,  B29C64/371

Abstract: A powder bed fusion apparatus for building an object in a layer-by-layer manner includes a build platform movable within a build sleeve to define a build volume, a layer formation device for forming layers of powder across the build volume in a working plane and an irradiation device for irradiating powder in the working plane to selectively fuse the powder. The powder bed fusion apparatus further includes a mechanical manipulator arranged to engage with the object and/or a build substrate, to which the object is attached, to tilt the object in a raised position above the working plane such that powder is freed from the object and deposited at a location above the working plane and/or into the build volume.

公开(公告)号：US20200016838A1

公开(公告)日：2020-01-16

申请号：US16483263

申请日：2018-02-20

Applicant: RENISHAW PLC

Inventor： David Roberts MCMURTRY ,  Christopher SUTCLIFFE ,  Robin Geoffrey WESTON ,  Paul CAMPTON ,  David John WHITTON ,  David BEEBY

IPC: B29C64/241 ,  B29C64/245 ,  B29C64/205 ,  B29C64/268 ,  B29C64/371 ,  B29C64/321

Abstract: A powder bed fusion apparatus for building an object in a layer-by-layer manner includes a build platform movable within a build sleeve to define a build volume, a layer formation device for forming layers of powder across the build volume in a working plane and an irradiation device for irradiating powder in the working plane to selectively fuse the powder. The powder bed fusion apparatus further includes a mechanical manipulator arranged to engage with the object and/or a build substrate, to which the object is attached, to tilt the object in a raised position above the working plane such that powder is freed from the object and deposited at a location above the working plane and/or into the build volume.

公开(公告)号：US20190009338A1

公开(公告)日：2019-01-10

申请号：US16069991

申请日：2017-01-10

Applicant: RENISHAW PLC

Inventor： David Roberts MCMURTRY ,  Geoffrey MCFARLAND ,  Liam David HALL ,  Christopher John SUTCLIFFE ,  Robin Geoffrey WESTON

IPC: B22F3/105 ,  B33Y30/00 ,  B33Y10/00

Abstract: A powder bed fusion apparatus in which selected areas of a powder bed are solidified in a layer-by-layer manner to form a workpiece, the powder bed fusion apparatus including a build chamber for maintaining an inert atmosphere or (partial) vacuum, a build sleeve located within the build chamber, a build platform for supporting the powder bed movable in the build sleeve, a powder applicator for forming powder layers of the powder bed and a radiation device for generating and steering a radiation beam across a surface of the powder bed to solidify areas of each layer, wherein the build sleeve is mounted in the build chamber to be tiltable to cause displacement of powder from the build sleeve through an opening in the build sleeve.