Repair in PBF: Customized Bed Concept
摘要
The platform in PBF is planar, and therefore, for repair, parts having a non-planar base are not suitable. Besides, the size of the base needs to be small enough to be fitted within the platform. Although the size of the platform is enlarged to accommodate a bigger base. What if the shape of a platform or bed can be changed by a nut, screw, and bolt? It can repair various types of shapes. For example, if a bed is bent inward, making a half-circle, such that the bed is not a rectangular planar surface but a curved surface, and if the radius of the half-circle is slightly more than the radius of a cylinder, the cylinder can fit in the bed. A cylinder machined into half along its central axis will conform to the half-circular space of the bed. The machined surface will not be different from the substrate surface used in PBF. This type of bed can work well to repair cylindrical objects, as fitting the objects will not require machining to make their circumference partially planar. If the inner space of the bed is adjustable, it will allow objects of various sizes to fit.