Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
3D LASER-FORMING TECHNIQUE FOR COMPONENT WITH CAVITY
Document Type and Number:
WIPO Patent Application WO/2017/201993
Kind Code:
A1
Abstract:
A 3D laser-forming technique for a component with a cavity, comprising the following steps:1) building a geometric model of a component; dividing the model into an oriented forming area and a normal forming area, wherein any part subject to interference is designated as the oriented forming area, and the remaining part is designated as the normal forming area; 2) emitting a laser beam, combining a laser spot with a metal powder feed, and forming a layer of material; in the oriented forming area, scanning at a fixed angle between the axis of a laser head and a vertical axis; in the normal forming area, scanning at an angle where the axis of the laser head is parallel to the normal line of a formed surface; 3) moving the laser head by a distance equal to the thickness of one material layer, repeating step 2) until the processing is complete. The invention eliminates a phenomenon of interference and achieves a higher degree of surface precision. When processing a sealing portion of the component, a surface to be worked is divided into multiple sections along a trail. After processing one of the sections, the process pauses for a moment, allowing the section to cool before continuing to work on the next section, repeating the process until one material layer is formed. The technique thereby addresses an issue of heat accumulation, and can achieve normal forming of the sealing portion.

Inventors:
SHI TUO (CN)
FU GEYAN (CN)
FANG QINQIN (CN)
WANG CONG (CN)
SHI SHIHONG (CN)
DENG ZHIQIANG (CN)
ZHOU BIN (CN)
Application Number:
PCT/CN2016/107262
Publication Date:
November 30, 2017
Filing Date:
November 25, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ZHANGJIAGANG INST IND TECH SOOCHOW UNIV (CN)
International Classes:
B22F3/105; B22F5/10
Domestic Patent References:
WO2016042794A12016-03-24
Foreign References:
CN104625059A2015-05-20
CN103521767A2014-01-22
JP2011127192A2011-06-30
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF: