Loading path and microstructure study of Ti-3Al-2.5V tubular components within hot gas forming at 800 °C

2016 ◽  
Vol 87 (5-8) ◽  
pp. 1823-1833 ◽  
Author(s):  
Yong Wu ◽  
Gang Liu ◽  
Kai Wang ◽  
Zhiqiang Liu ◽  
Shijian Yuan
Keyword(s):  
Loading Path ◽  
Hot Gas ◽  
Tubular Components ◽  
Hot Gas Forming

A novel composited process of solution treatment-hot gas forming and stress relaxation aging for titanium alloys

2021 ◽  
Vol 288 ◽  
pp. 116904
Author(s):  
Kehuan Wang ◽  
Yang Jiao ◽  
Xiaojuan Wu ◽  
Bao Qu ◽  
Xiaosong Wang ◽  
...  
Keyword(s):  
Stress Relaxation ◽  
Titanium Alloys ◽  
Solution Treatment ◽  
Hot Gas ◽  
Hot Gas Forming

scholarly journals Hot Gas Forming of Aluminum Alloy Tubes Using Flame Heating

2020 ◽  
Vol 4 (2) ◽  
pp. 56 ◽  
Author(s):  
Ali Talebi-Anaraki ◽  
Mehdi Chougan ◽  
Mohsen Loh-Mousavi ◽  
Tomoyoshi Maeno
Keyword(s):  
Aluminum Alloy ◽  
Wall Thickness ◽  
Thickness Distribution ◽  
Forming Process ◽  
Hot Gas ◽  
Axial Feeding ◽  
Flame Heating ◽  
Lathe Machine ◽  
Aluminum Alloy Tube ◽  
Hot Gas Forming

Hot metal gas forming (HMGF) is a desirable way for the automotive industry to produce complex metallic parts with poor formability, such as aluminum alloys. A simple hot gas forming method was developed to form aluminum alloy tubes using flame heating. An aluminum alloy tube was heated by a flame torch while the tube was rotated and compressed using a lathe machine and simultaneously pressurized with a constant air pressure. The effects of the internal pressure and axial feeding on expansion and wall thickness distribution were examined. The results showed that the proposed gas forming method was effective for forming aluminum alloy tubes. It was also indicated that axial feeding is a vital parameter to prevent reductions in wall thickness by supplying the material flow during the forming process.

scholarly journals Investigation on precision and performance for hot gas forming of thin-walled components of Ti2AlNb-based alloy

2018 ◽  
Vol 190 ◽  
pp. 07001
Author(s):  
Xueyan Jiao ◽  
Zhiqiang Liu ◽  
Yong Wu ◽  
Gang Liu
Keyword(s):  
Process Parameters ◽  
Microstructure Evolution ◽  
Element Model ◽  
Parameters Optimization ◽  
Forming Process ◽  
Performance Control ◽  
Hot Gas ◽  
Thin Walled ◽  
And Performance ◽  
Hot Gas Forming

Ti2AlNb-based alloys have received considerable attention as potential materials to replace the nickel alloy at 600-750 °C, depending on their advantages of high specific strength, good corrosion and oxidation resistance. To realize the precision and performance control for Ti2AlNb-based alloy thin-walled components, the microstructure evolution was analyzed for setting up the unified viscoplastic constitutive equations based on the physical variables and simulating the forming process coupled between the deformation and the microstructure evolution. Through the finite element model with coupling of microstructure and mechanical parameters, the microstructure evolution and shape fabricating can be predicted at the same time, to provide the basis for the process parameters optimization and performance control. With the reasonable process parameters for hot gas forming of Ti2AlNb thin-walled components, the forming precision and performance can be controlled effectively.

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