公开(公告)号：US11691342B2

公开(公告)日：2023-07-04

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: B29C64/209 ,  B29C64/321 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/245 ,  B29C64/241 ,  B29C64/268 ,  B29C64/205 ,  B29C64/371 ,  B22F10/28 ,  B22F10/73 ,  B22F12/88 ,  B22F10/68 ,  B29C64/153 ,  B22F12/33 ,  B22F12/80 ,  B22F12/30 ,  B22F12/82 ,  B22F12/37 ,  B22F10/32

CPC classification number: B29C64/321 ,  B22F10/28 ,  B22F10/68 ,  B22F10/73 ,  B22F12/88 ,  B29C64/205 ,  B29C64/241 ,  B29C64/245 ,  B29C64/268 ,  B29C64/371 ,  B33Y30/00 ,  B33Y40/00 ,  B22F10/32 ,  B22F12/30 ,  B22F12/33 ,  B22F12/37 ,  B22F12/80 ,  B22F12/82 ,  B29C64/153

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：US11123924B2

公开(公告)日：2021-09-21

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 ,  B29C64/321 ,  B29C64/245 ,  B29C64/268 ,  B29C64/205 ,  B29C64/371 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/153 ,  B22F10/10 ,  B22F10/70 ,  B22F12/33 ,  B22F12/80 ,  B22F12/30 ,  B22F10/28 ,  B22F12/82 ,  B22F12/37 ,  B22F10/73 ,  B22F12/88

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：US20210205928A1

公开(公告)日：2021-07-08

申请号：US16755870

申请日：2018-10-19

Applicant: RENISHAW PLC

Inventor： David Edward BEEBY ,  David John Whitton ,  Andrew Thomas CRITCHLEY

IPC: B23K26/342 ,  B23K26/04 ,  B23K26/082 ,  B23K26/12 ,  B23K26/144 ,  B23K26/14 ,  B23K26/16 ,  B23K26/70 ,  B22F10/28 ,  B22F12/70 ,  B22F10/73 ,  B33Y30/00 ,  B33Y40/00

Abstract: A powder bed fusion apparatus including a build chamber, a build platform in the build chamber for supporting a powder bed, a layer formation device for forming layers of powder to form the powder bed, a scanner for scanning an energy beam across the powder bed to fuse the powder and a gas circuit for forming a gas flow across the powder bed. The gas circuit includes a separator for separating particles from gas in the gas circuit, a nozzle for propelling gas into the build chamber and an exhaust for extracting gas from the build chamber and delivering the gas to the separator. The exhaust includes an exhaust channel or opening located for receiving powder wiped from the powder bed and/or build platform.