scholarly journals Deformation behavior of 7050 aluminum alloy panels with variable thickness by shot peen forming

2018 ◽  
Author(s):  
Mingtao Wang ◽  
Yuansong Zeng ◽  
Xuepiao Bai
Keyword(s):  
Aluminum Alloy ◽  
Variable Thickness ◽  
Deformation Behavior ◽  
Peen Forming ◽  
7050 Aluminum Alloy ◽  
Aluminum Alloy Panels

Manufacturing Process of Large Scale Sandwich Structure with Variable Thickness of PMI Foam Core

2011 ◽  
Vol 299-300 ◽  
pp. 816-819
Author(s):  
Chun Wang ◽  
Xuan Ming Zhang ◽  
Chun Ying Tang
Keyword(s):  
Aluminum Alloy ◽  
Variable Thickness ◽  
Sandwich Structure ◽  
Large Scale ◽  
Cnc Machining ◽  
Foam Core ◽  
Molding Process ◽  
Thin Walled ◽  
Sandwich Core ◽  
Aluminum Alloy Panels

Composite sandwich structures are extensively used in the aerospace, wind power, sports equipment, shipbuilding, automotive and train locomotive industries in order to improve structure rigidity and reduce weight. The molding process of sandwich structure using glass cloth and fibre materials as panels has been reported in many literatures. However, few researches are found relative to the molding process of large scale sandwich structure with the characteristics of thin-walled aluminum alloy panels and variable thickness of Polymethacrylimide (PMI) foam cores. This paper describes a preformed molding process that consists of thermoforming foam core blocks, assembling blocks into a whole sandwich core, CNC machining the sandwich core according to surface models of the thin-walled aluminum alloy panels, and finally, bonding and curing panels and sandwich cores.

Effect of Deformation Temperature on Deformation Behavior and Service Performance of 7050 Aluminum Alloy

2011 ◽  
Vol 264-265 ◽  
pp. 305-310
Author(s):  
Xin Yun Wang ◽  
Hui E Hu ◽  
Ju Chen Xia
Keyword(s):  
Aluminum Alloy ◽  
Deformation Behavior ◽  
Deformation Temperature ◽  
Volume Fraction ◽  
Hardness Measurement ◽  
Service Performance ◽  
Strengthening Mechanisms ◽  
Compression Tests ◽  
Softening Mechanism ◽  
7050 Aluminum Alloy

Compression tests of 7050 aluminum alloy have been conducted at different temperatures (340, 380, 420, and 460 °C) with strain rate of 0.1 s-1. The deformation behavior and service performance of the alloy are investigated using EBSD technique, TEM and hardness measurement. Results show that the volume fraction of recrystallized grains increases with the increase of deformation temperature. The primary softening mechanisms of the alloy deformed at 340, 380, and 420 °C are dynamic recovery, and dynamic recrystallization is the main softening mechanism of the alloy deformed at 460 °C. The hardness of the 7050 aluminum alloy deformed increases with increasing deformation temperature. Dynamic precipitation appears when the 7050 aluminum alloy was deformed at 340, 380, and 420 °C, and strengthening mechanisms include mechanical hardening and precipitation strengthening. When deformation temperature is 460 °C, solid solution strengthening and grain boundary strengthening are primary strengthening mechanisms.

Sign in / Sign up

Export Citation Format

Share Document