Reduction of Residual Quenching Stresses in 2A14 Aluminum Alloy Tapered Cylinder Forgings via a Novel Cold Bulging Process

This study combined finite element method (FEM) simulations and physical experiments to develop a novel cold bulging process, with the aim of studying and mitigating the quenching residual stresses in 2A14 tapered cylinder forgings. The samples underwent cold bulging at different ratios (0–4.0%) to...

Full description

Saved in:
Bibliographic Details
Published in:Metals (Basel ) 2021-05, Vol.11 (5), p.717
Main Authors: Wang, Bingxiang, Yi, Youping, Huang, Shiquan, He, Hailin
Format: Article
Language:English
Subjects:
2A14 aluminum alloy
Aging
Alloys
Aluminum alloys
Aluminum base alloys
Cold
cold bulging
Cold forgings
Cooling
Cylinders
Drilling
Elongation
FEM simulation
Finite element method
Mechanical properties
Metal fatigue
Phase transitions
Quenching
quenching stress
Reduction
Residual stress
residual stress reduction
Simulation
Strain gauges
tapered cylinder forging
Transmission electron microscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study combined finite element method (FEM) simulations and physical experiments to develop a novel cold bulging process, with the aim of studying and mitigating the quenching residual stresses in 2A14 tapered cylinder forgings. The samples underwent cold bulging at different ratios (0–4.0%) to evaluate the residual stress reduction performance (via the hole-drilling strain-gauge method) and the improvements in their mechanical properties. The FEM simulation and experimental results revealed that our proposed cold bulging process reduced the quenching residual stresses by up to 85–87%. The density and uniformity of the precipitated phases increased along with the extent of cold bulging, as confirmed by transmission electron microscope (TEM) observations. Furthermore, compared to the unprocessed samples, the tensile and yield strengths, and elongation of the samples with 3% cold bulging were significantly enhanced (65 MPa, 55 MPa, and 1.7%, respectively).
ISSN:2075-4701
2075-4701
DOI:10.3390/met11050717