Title:
DUAL-LASER-BEAM DEPOSITION-FORMING AND IMPACT-FORGING COMBINATION ADDITIVE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/223478
Kind Code:
A1
Abstract:
A dual-laser-beam deposition-forming and impact-forging combination additive manufacturing method. The method comprises: 1) stacking a deposition zone material by using two laser beams with different functions simultaneously and synergistically to form a workpiece; and 2) a first continuous laser beam (4) depositing a metal powder (3) by thermal effect, while at the same time a second short pulse laser beam (5) directly acts on the surface of the deposited metal in a forging temperature range, and using the second short pulse laser beam (5) to impact forge the deposited layers in the forging temperature range by a shock wave mechanical effect. Thereby, strength and plasticity of the entire block material and uniformity of grain size is improved, internal defects such as pores in the deposited layers and thermal stress are eliminated, the internal quality and mechanical properties of metal parts are significantly improved, and macroscopic deformation and cracking problems are effectively controlled.
Inventors:
ZHANG YONGKANG (CN)
ZHANG ZHENG (CN)
GUAN LEI (CN)
YANG QINGTIAN (CN)
YANG ZHIFAN (CN)
ZHANG ZHENG (CN)
GUAN LEI (CN)
YANG QINGTIAN (CN)
YANG ZHIFAN (CN)
Application Number:
PCT/CN2017/092076
Publication Date:
December 13, 2018
Filing Date:
July 06, 2017
Export Citation:
Assignee:
UNIV GUANGDONG TECHNOLOGY (CN)
International Classes:
C23C24/10; B22F3/105; B33Y10/00; C21D10/00
Foreign References:
| CN106735221A | 2017-05-31 | |||
| CN105562951A | 2016-05-11 | |||
| CN105624669A | 2016-06-01 | |||
| CN103343338A | 2013-10-09 | |||
| US20140069893A1 | 2014-03-13 | |||
| EP2292371A1 | 2011-03-09 |
Attorney, Agent or Firm:
ETR LAW FIRM (CN)
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