Invention Grant
- Patent Title: Laser sintering process chamber gas curtain window cleansing in a laser sintering system
- Patent Title (中): 激光烧结工艺室气窗帘在激光烧结系统中的清洗
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Application No.: US11125401Application Date: 2005-05-09
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Publication No.: US07807947B2Publication Date: 2010-10-05
- Inventor: Jouni P. Partanen , Ning Zheng , Raymond J. Bishop
- Applicant: Jouni P. Partanen , Ning Zheng , Raymond J. Bishop
- Applicant Address: US SC Rock Hill
- Assignee: 3D Systems, Inc.
- Current Assignee: 3D Systems, Inc.
- Current Assignee Address: US SC Rock Hill
- Agent Ralph D'Alessandro; Keith A. Roberson
- Main IPC: B23K26/12
- IPC: B23K26/12
Abstract:
An inert gas dispenser for mounting to a process equipment functional window is provided to dispense an inert gas in a laminar flow at an effective velocity across the exposed surface to form a curtain of inert gas across the exposed surface to prevent a build-up of chemical by-product from the powder material during laser sintering. The gas flow rate is characteristic of a flow geometry having a Reynolds number below the turbulent range. The diffuser is used in a laser sintering system.
Public/Granted literature
- US20060249485A1 Laser sintering process chamber gas curtain window cleansing in a laser sintering system Public/Granted day:2006-11-09
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