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论文类型：期刊论文

发表时间：2008-01-01

发表刊物：China Welding

收录刊物：EI、CSCD

卷号：17

期号：1

页面范围：57-63

ISSN号：1004-5341

摘要：This paper reports the numerical simulation of the 3D material flow in friction stir welding process by using finite element methods based on solid mechanics. It is found that the material flow behind the pin is much faster than that in front of the pin. The material in front of the pin moves upwards and then rotates with the pin due to the effect of the rotating tool. Behind of the pin, the material moves downwards. This process of material movement is the real cause to make the friction stir welding process continuing successfully. With the increase of the translational velocity or the rotational velocity of the pin, the material flow becomes faster.