公开(公告)号：US11267052B2

公开(公告)日：2022-03-08

申请号：US16677031

申请日：2019-11-07

Applicant: RENISHAW PLC

Inventor： Michael Joseph McClelland ,  Ceri Brown ,  Ravi Guttamindapalli Aswathanarayanaswamy

IPC: B22F12/00 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/135 ,  B22F10/10

Abstract: An additive manufacturing apparatus including a build chamber, build platform lowerable in the chamber so layers of flowable material can successively form across the platform, laser for generating a laser beam, scanning unit for directing the laser beam onto each layer to selectively solidify the material and a processor for controlling the scanning unit. The processor controls the scanning unit directs the laser beam to solidify a selected area of material by advancing the laser beam many times along a scan path. On each pass, the laser beam solidifies spaced apart sections of the scan path, each subsequent pass solidifying sections that are located between sections solidified on a previous pass. The processor controls the scanning unit to direct the laser beam to solidify selected area of material by solidifying sub-millimetre sized sections of non-continuously area and in an order such that consecutively solidified sections are spaced apart.

公开(公告)号：US11117360B2

公开(公告)日：2021-09-14

申请号：US15574979

申请日：2016-06-03

Applicant: RENISHAW PLC

Inventor： Ramkumar Revanur ,  Michael Joseph McClelland

IPC: G05B19/414 ,  G05B15/00 ,  B29C64/393 ,  G05B19/4099 ,  B33Y50/02 ,  B33Y50/00 ,  B29C64/386 ,  B33Y30/00 ,  B23K26/354 ,  B23K26/34 ,  B33Y10/00

Abstract: A device and method for generating scan data and/or slice data for use in an additive manufacturing process, in which an energy beam is scanned across layers of flowable material to consolidate the material in a layer-by-layer manner to build a part. The device includes a display and a processor. The processor is arranged to determine scan data for slices and/or slices of the part to be built in the additive manufacturing process and cause the display to display scan data and/or slices that has been determined whilst determining scan data for other ones of the slices and/or other ones of the slices from the geometric data.