What Should Be Paid Attention To When Selecting The Material Of Stamping Parts Of Hardware And Electrical Appliances?
1. In the steel plate specification category, whether it is fixed length plate or coiled plate, the same material and material thickness have different coil widths and different sales prices. Therefore, in order to reduce the cost, it is necessary to work hard on the formulation of the procurement roll width, and try to select the roll width range without price increase on the premise of ensuring the material utilization rate. For example, for the fixed length plate, try to select the appropriate specification and size. After cutting from the steel plant, it is not necessary to conduct secondary cutting to reduce the cutting cost; For the coil plate, the coil material specification and process of uncoiling forming shall be selected as much as possible to reduce the workload of secondary shearing and improve the work efficiency.
2. There are deviation requirements for the thickness of plates. Generally, within the allowable range of deviation, the plates with lower deviation shall be selected first.
3. To determine the shape and size of the unfolded sheet metal of the household appliance stamping parts is the premise of analyzing the deformation degree of the household appliance stamping parts, designing the process and drawing up the process specification. If the sheet metal shape is appropriate, not only the uneven distribution of deformation along the sheet metal can be significantly improved, but also the forming limit can be improved, and the lug height can be reduced and the trimming allowance can be reduced. In addition, for some parts directly formed after blanking, if the accurate sheet metal shape and size can be given, the number of mold trial and mold adjustment can be reduced, thus shortening the production cycle and improving the productivity.
4. When selecting materials for product design, avoid using high-grade materials to cause excessive product performance. At the same time, on the premise of meeting product and process requirements, try to select the materials and material thicknesses used by existing mass-produced models to form a material platform to facilitate subsequent procurement and inventory management. For example, the key performance requirement of ordinary cold-rolled sheet is its drawability, so try to select low grade materials when meeting the requirements of product quality. For the selection of material thickness, in addition to considering the strength and weight of the body after forming, attention should also be paid to the popularization of material thickness. Because of the special material thickness, it is difficult for suppliers to supply and the price is high.
