Research on Forming Process to Improve Flatness of Beryllium Bronze Parts

As an important component for controlling the on-off of radio frequency signals, radio frequency relays are widely used in aerospace, aviation, communications, electronics and other fields, and the movable reed for radio frequency transmission (hereinafter referred to as the movable reed) is the key part of the radio frequency relay transmission system. The function of turning on and turning off the radio frequency signal transmission requires the moving reed to have the following properties. The first base material has good radio frequency signal transmission performance. The second part has a high flatness to make it fit well with the cavity cover to ensure a good radio frequency. The third part of the relay limit index has certain hardness, strength, elasticity and fatigue limit to ensure that the moving reed and the cavity cover and the end surface of the inner conductor are constantly beating during the working process of the product. As a hardened dispersive copper alloy with good comprehensive properties, Qi bronze has the characteristics of low electrical resistivity, high electrical conductivity and thermal conductivity. After low temperature aging, its hardness, strength, elasticity and fatigue limit are greatly improved. It is a moving spring material. Ideal choice. However, the non-uniformity of the temperature field change during the aging process will cause the beryllium bronze moving reed to deform and cause the flatness to change. In addition, the mechanical stress and residual stress generated by the machining will also cause the processing deformation of the beryllium blue moving reed. In view of the above problems, this paper studies the main processes that cause the flatness deformation of the beryllium bronze moving reed in the traditional forming process, and conducts targeted process research and improvement on the main processes that cause the flatness deformation.