，关于使用双动压力机进行拉深工件的研究
Deep Drawing of Workpieces with a Two-Action Press
Deep drawing is a metal forming process in which flat sheets of metal are rolled into a cylindrical or conical shape. It is one of the most commonly used metalworking processes for producing parts with complex shapes. The process is often used to produce parts for the aerospace and automotive industries, including turbine blades and fuel tanks. One of the most popular methods of deep drawing is using a two-action press. This type of press exerts two motions on the workpiece at the same time, in order to press it into shape.
A two-action press has two distinct parts: the top section and the lower section. The upper section is connected to the lower section by four hydraulic cylinders. The upper section consists of a bed plate and top plate, and the lower section is composed of an anvil and a lower plate. The bed plate and top plate are usually connected to the cylinders via a spindle and pin assembly. The cylinders actuate the upper and lower portions of the press, allowing them to move in relation to each other. This movement creates a pulling and pushing force on the workpiece, which helps form it into the desired shape.
When using a two-action press for deep drawing, it is important to consider the material being used and the design of the part being formed. The material should be thick enough to withstand the compressive and tensile forces generated by the press, while still retaining its ductile properties. Additionally, the part should be designed such that the edges are free of any sharp edges or burrs. The placement of the part in the press is also important, as it should be centered and in line with the cylinders.
The amount of force applied to the workpiece during deep drawing is determined by the size of the cylinders and the pressure in them. Generally, the larger the cylinders, the greater the force that can be applied. Additionally, the pressure applied to the cylinders should be suitable for the material being formed and should be as close as possible to its yield strength. The forces generated during the press will be equally distributed around the circumference of the part, with the highest concentration of forces occurring at the center.
The typical unit pressure side force applied to workpieces when deep drawing with a two-action press is typically 30-90KN. The force applied to the workpiece will depend on a variety of factors, including the type of material, the size of the part, and the amount of pressure applied to the cylinders. Additionally, the force will also depend on the type of press used, as well as the amount of leverage that is applied.
In conclusion, two-action presses are a popular choice for deep drawing due to their ability to evenly distribute the forces around the workpiece. They are also capable of generating significant amounts of force, allowing them to shape even the most difficult of materials. However, the unit pressure side force that is applied to a workpiece will vary depending on a variety of factors, including the type of press and the material being worked on. As such, it is important to carefully consider the type of press and the material before beginning a deep drawing project.
