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Author:

Wang, Peng (Wang, Peng.) | Chen, Dongju (Chen, Dongju.) (Scholars:陈东菊) | Fan, Jinwei (Fan, Jinwei.) | Sun, Kun (Sun, Kun.) | Wu, Shuiyuan (Wu, Shuiyuan.) | Li, Jia (Li, Jia.) | Sun, Yueqiang (Sun, Yueqiang.)

Indexed by:

EI Scopus SCIE

Abstract:

Purpose The purpose of this paper is to improve the performance and quality of Ti-6Al-4V fabricated by laser powder bed fusion. Design/methodology/approach Single-track experiments were conducted during the fabrication process to obtain the single tracks with excellent wettability to narrow the process parameter window. The effects of process parameters on the build surface, cross-section, relative density, defects, surface roughness, microstructure and mechanical properties of the parts were analyzed through multilayer fabrication experiments and surface optimization experiments. Findings The point distance has the greatest influence on the build surface of the fabricated parts, and the unmelted defects can be eliminated when the point distance is 35 mu m. The relative density of the fabricated parts decreased with the increase of the point distance, and the hatch spacing has different characteristics with respect to the relative density of the fabricated parts under different laser powers. It was observed that the most of experimental groups with higher relative densities than 99%, and the highest density could reach 99.99%. The surface roughness can be reduced to less than 10 mu m through remelting optimization. Originality/value The research results can provide theoretical support for scientific researchers and data support for engineers.

Keyword:

Manufacturing quality Laser powder bed fusion Defect Process parameters Ti-6Al-4V

Author Community:

  • [ 1 ] [Wang, Peng]Beijing Univ Technol, Fac Mat & Mfg, Mech Ind Key Lab Heavy Machine Tool Digital Desig, Beijing, Peoples R China
  • [ 2 ] [Chen, Dongju]Beijing Univ Technol, Fac Mat & Mfg, Mech Ind Key Lab Heavy Machine Tool Digital Desig, Beijing, Peoples R China
  • [ 3 ] [Fan, Jinwei]Beijing Univ Technol, Fac Mat & Mfg, Mech Ind Key Lab Heavy Machine Tool Digital Desig, Beijing, Peoples R China
  • [ 4 ] [Sun, Kun]Beijing Univ Technol, Fac Mat & Mfg, Mech Ind Key Lab Heavy Machine Tool Digital Desig, Beijing, Peoples R China
  • [ 5 ] [Wu, Shuiyuan]Beijing Univ Technol, Fac Mat & Mfg, Mech Ind Key Lab Heavy Machine Tool Digital Desig, Beijing, Peoples R China
  • [ 6 ] [Li, Jia]Beijing Univ Technol, Fac Mat & Mfg, Mech Ind Key Lab Heavy Machine Tool Digital Desig, Beijing, Peoples R China
  • [ 7 ] [Sun, Yueqiang]Beijing Univ Technol, Fac Mat & Mfg, Mech Ind Key Lab Heavy Machine Tool Digital Desig, Beijing, Peoples R China
  • [ 8 ] [Wang, Peng]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Adv Mfg Technol, Beijing, Peoples R China
  • [ 9 ] [Chen, Dongju]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Adv Mfg Technol, Beijing, Peoples R China
  • [ 10 ] [Fan, Jinwei]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Adv Mfg Technol, Beijing, Peoples R China
  • [ 11 ] [Sun, Kun]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Adv Mfg Technol, Beijing, Peoples R China
  • [ 12 ] [Wu, Shuiyuan]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Adv Mfg Technol, Beijing, Peoples R China
  • [ 13 ] [Li, Jia]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Adv Mfg Technol, Beijing, Peoples R China
  • [ 14 ] [Sun, Yueqiang]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Adv Mfg Technol, Beijing, Peoples R China

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Source :

RAPID PROTOTYPING JOURNAL

ISSN: 1355-2546

Year: 2022

Issue: 9

Volume: 28

Page: 1655-1676

3 . 9

JCR@2022

3 . 9 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:49

JCR Journal Grade:2

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 7

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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