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Title:Research on forging process for TC18 titanium alloy forging
Authors: HUANG Xiang-long1  YI You-ping1  LI Peng-chuan2  SHA Ai-xue3 
Unit: 1. State Key Lab High\|performance Complex Manufacturing  Central South University  Changsha 410083 China 2. China National Erzhong Group Co.  Deyang 618000  China 3.Beijing Institute of Aeronautical Materials Beijing 100095 China 
KeyWords: TC18 titanium alloy  flow stress model  forging process  numerical simulation 
ClassificationCode:TG316
year,vol(issue):pagenumber:2012,37(5):7-11
Abstract:

Using Deform 3D finite element software, the numerical simulation about forging process of TC18 titanium alloy forging was conducted. A study by comparing the different results between the hammer forging and hydraulic forging was implemented. The results show that under the conditions of hammer forging, TC18 titanium alloy forging is more obvious to be overheated, as the maximum temperature of the way about 70 ℃ higher than hydraulic forging,its temperature must be strictly controlled in the process of forging; the distribution of effective stress is very uneven, and the mean effective stress of the way is about 30 MPa higher than hydraulic forging, what's more serious is that the stress concentration exists, however the effective stress in the condition of hydraulic forging changes more gently; compared to hydraulic forging, the difference between the maximum and minimum effective strain of the way of forging hammer reduces by 26%, the deformation uniformity of hammer forging is improvement.

Funds:
国家重大专项资助项目(2009ZX04005-011)
AuthorIntro:
Reference:


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