Experimental investigation of the multi-stage micro-deep drawing of pure titanium foils with different grain sizes

To manufacture micro-drawn cups featuring high CH/CD (cup height/cup diameter ratios) and high quality, a three-stage micro-deep drawing (MDD) system was designed and studied. TA1 pure titanium (Ti) foils with the thickness of 50 μm were annealed at 600–700 °C for 1 h to obtain different grain sizes...

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Bibliographic Details
Published in:Journal of materials science 2022-08, Vol.57 (31), p.15094-15108
Main Authors: Han, Peisheng, Xing, YuLin, Yuan, Guofeng, Zhu, Xiaoyu, Wang, Xiaogang
Format: Article
Language:English
Subjects:
Analysis
Annealing
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Corrosion
Crystallography and Scattering Methods
Cups
Deep drawing
Deformation
Deformation effects
Design
Diameters
Friction
Grain size
Materials Science
Mechanical properties
Metal foils
Metals
Metals & Corrosion
Polymer Sciences
Productivity
Quality assurance
Ratios
Solid Mechanics
Titanium
Wrinkling
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Summary:To manufacture micro-drawn cups featuring high CH/CD (cup height/cup diameter ratios) and high quality, a three-stage micro-deep drawing (MDD) system was designed and studied. TA1 pure titanium (Ti) foils with the thickness of 50 μm were annealed at 600–700 °C for 1 h to obtain different grain sizes. Then, the effects of different grain sizes on the deformation behavior of multi-stage MDD and the quality of the formed cups were analyzed. The results show that the as-received pure Ti has a poor formability, suffering a slight fracture problem and significant wrinkling problem of the final drawn cup. At the optimal annealing temperature of 600 °C, the drawn cups show very few wrinkles and a good shape profile. Besides, high CH/CD ratios can be produced for the final drawn cups. Moreover, with the increase in drawing stage, the wrinkling of the cup is significantly reduced due to the "ironing effect" in the multi-stage MDD process. The research can provide a basis for forming high-quality and high CH/CD ratios micro-parts by multi-stage MDD and enrich the knowledge from behavior deformation behavior and product quality assurance. Graphical abstract
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-022-07556-3