Method to select defocused amount and Z-increments in forming thin-walled part with laser cladding

Haiyan Xu, Tao Li, Haibo Li, Xinlin Wang, Hongchao Zhang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Defocused amount and Z-increments affect the accuracy and efficiency of thin-walled part with laser cladding forming. The key to obtain high-accuracy thin-walled part is to make the Z-increments equal the cladding height under initial defocused amount. In order to solve the problem of forming thin-walled part with high accuracy and efficiency, powder density distribution model of laser cladding system with coaxial-powder feeding is established based on the probability theory, the calculation formula of cladding height under different negative defocused amounts is given and experimentally verified. The calculation method of multi-layer cladding forming thin-walled part height under any negative defocused amount and Z-increment is proposed and experimentally verified. The results show that calculations of multi-layer cladding forming thin-walled part height are in accordance with experiments. Selecting self-regulation-effect negative defocused amount as large as possible, and making Z-increments equal the calculated value of cladding height under this defocused amount, the thin-walled parts with high forming efficiency and high accuracy can be obtained.

Original languageEnglish
Pages (from-to)557-563
Number of pages7
JournalDalian Ligong Daxue Xuebao/Journal of Dalian University of Technology
Volume57
Issue number6
DOIs
StatePublished - Nov 1 2017

Keywords

  • Defocused amount
  • Laser technology
  • Thin-walled parts forming
  • Z-increments

Fingerprint Dive into the research topics of 'Method to select defocused amount and Z-increments in forming thin-walled part with laser cladding'. Together they form a unique fingerprint.

Cite this