What principles should be followed in the selection and processing of metal stamping parts [Hardware]

Generally speaking, the selection of metal stamping parts should follow the 4 principles: 1. For the cut-to-length plate, choose the appropriate size as much as possible. After the cutting from the steel plant is completed, there is no need to perform secondary cutting to reduce the cutting cost; For plate, try to choose the coil specifications and technology of uncoiling forming to reduce the workload of secondary shearing and improve work efficiency. 2. The thickness of the plate has deviation requirements, usually within the allowable range of deviation, the plate with the lower deviation should be selected first. 3. Determining the shape and size of the unfolded sheet of metal stamping parts is the prerequisite for analyzing the degree of deformation of the stamping parts, designing craftsmanship and drawing up process regulations. If the shape of the sheet is appropriate, not only the uneven distribution of deformation along the sheet can be significantly improved, but also the forming limit can be increased, the height of the lugs can be reduced, and the margin for trimming can be reduced. In addition, for some parts that are directly formed after blanking, if the accurate sheet shape and size can be given, the number of mold trial adjustments can be reduced, thereby shortening the production cycle and improving productivity. 4. When selecting materials for product design, avoid using high-grade materials to cause excess product performance. At the same time, on the premise of meeting product and process requirements, try to choose the material and thickness of the existing mass-produced models to form a material platform. Provide convenience for subsequent procurement and inventory management. Five principles that should be followed in the processing of metal stamping parts 1. When the section quality and dimensional accuracy of the metal stamping parts are required to be high, you can consider adding a trimming process after the punching process or directly adopting a precision blanking process. 2. The number of procedures for the bending part mainly depends on the complexity of its structure and shape, which is determined by the number of bending angles, relative positions and bending directions. When the bending radius of the bending piece is less than the allowable value, a reshaping process is added after bending. 3. The number of processes for drawing parts is related to the material properties, drawing height, number of drawing steps, drawing diameter, material thickness and other conditions, which can be determined only after drawing processing technology calculations. When the corner radius of the stretched part is small or the dimensional accuracy requirements are high, a reshaping process needs to be added after stretching. 4. In order to improve the stability of the stamping process, it is sometimes necessary to increase the number of processes to ensure the quality of stamping parts. 5. The metal stamping parts with simple shapes are punched out by a single-process mold. For workpieces with complex shapes, the inner and outer contours of the mold should be divided into several parts due to the restriction of the structure or strength of the mold, which requires multiple stamping processes. When necessary, a continuous die can be used. For metal stamping parts with high flatness requirements, a leveling process can be added after the punching process. The above Xiaoshuo will share with you some common selections and processing techniques of several metal stamping parts. hope it helps you.