Author(s)

Wang Chenlin ¹, Wang Leigang ¹

Affiliation(s)

¹ College of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China

Corresponding Author

Wang Chenlin

ABSTRACT

In this paper, we carry out research on the forging process of titanium crank for an offshore equipment, and put forward two options of die-splitting surface design through structural analysis, and choose the transverse die-splitting option (Option 2) by taking into account the forming quality and material utilisation rate. Based on the complexity coefficient of the forging part, the machining allowance (1.5mm), the inclination of the extracting die (3° on the outer surface and 5° on the inner surface) and the radius of the fillet (1mm) are calculated, and the design of the forging part drawing is completed.Combined with the thermal expansion characteristics of TC4 titanium alloy, the coefficient of cold shrinkage was determined to be 0.5%, and the hot forgings were designed and the parameters of the flying edge groove were optimised (height of the bridge section 0.97mm, width 8mm).Numerical simulation of the forging process was carried out using Deform software, and the results showed that the temperature field was uniform, the material flow was reasonable, the maximum forming load was 5180kN, and no folding or filling defects were found.The actual production verification shows that the finished forgings have no cracks, folding and other defects, and the forming quality meets the design requirements, which provides technical guidance for the efficient forging of titanium alloy cranks.

KEYWORDS

Titanium crank; mould design; numerical simulation

CITE THIS PAPER

Wang Chenlin, Wang Leigang, Titanium crank forging mould design and validation. Journal of Materials, Processing and Design (2025) Vol. 9: 13-19. DOI: http://dx.doi.org/10.23977/jmpd.2025.090102.

REFERENCES

[1] Engineering - Precision Engineering and Manufacturing; New Precision Engineering and Manufacturing Data Have Been Reported by Researchers at Chonbuk National University (A Study On Cutting Characteristics In Turning Operations of Titanium Alloy Used In Automobile) [J]. Journal of Transportation, 2019
[2] Jin J, Xia J, Wang X, et al. Die design for cold precision forging of bevel gear based on finite element method [J]. Journal of Central South University of Technology, 2009, 16 (4): 546-551
[3] Myshechkin A A, Kravchenko N I, Zuev V V, et al. Research and Selection of Optimal Parameters for Hot Die Forged Cross-Type Forgings by Modeling in the QForm Software Package [J]. Steel in Translation, 2025, 54 (9): 832-838
[4] Dong Y,Zeng D, Zhao H, et al. Fretting fatigue strength evaluation of scaled press-fitted railway axle containing a circumferential groove defect [J]. International Journal of Fatigue, 2025, 194 108824-108843. 

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