Transactions of Materials and Heat Treatment

Title：Study on radial forging process of beryllium bronze thin-walled tube

Authors： Chen Xiulin Chen Yan

Unit： Zhejiang Shenji Titanium Industry Co. Ltd.

KeyWords： radial forging forging die forging ratio compression tube billet beryllium bronze

ClassificationCode：TG316.3

year,vol(issue):pagenumber：2018,43(8):23-26

Abstract：

By using GFM SX16 radial forging machine, the radial forging process of beryllium bronze QBe2 thin-walled tube was studied, and the radial forging die device was designed and manufactured. Two different radial forging processes were conducted for the beryllium bronze QBe2 original semi-continuous casting tube billet of Φ125 mm×Φ500 mm. The results show that the best forging ratio during hot forging is λ=2~2.3；during the cold forging，the tube
should be quenched and softened in the α solid solution to improve the plasticity，and the best forging rato is λ≤1.25, then the surface crack of tube billet is eliminated. The forming process of difficult-to-deform beryllium bronze alloy tube billet was analyzed，and the force and energy parameters of radial forging process and the distribution of central stress in the plastic deformation process were calculated，which verified that the radial forging with six steps is the best scheme to obtain the thin-walled tube forgings of beryllium bronze QBe2 without defects.

Funds：

陈修琳（1985-），男，学士，工程师 E-mail：cherray@aliyun.com

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