Varieties of metal stamping process:
Hardware stamping is mainly classified by process, which can be divided into two categories: separate process and forming process. Separation process, also known as blanking, aims to separate metal stamping parts from sheet metal along a certain contour line, while ensuring the quality requirements of the separation section. The purpose of forming process is to make the sheet metal plastic deformation without breaking the blank, and to make the required shape and size of the workpiece. In practical consumption, many processes are often applied to a workpiece. Punching, bending, shearing, drawing, bulging, spinning and straightening are the main metal stamping processes.
The exterior and intrinsic properties of sheet metal for metal stamping have a great influence on the quality of metal stamping scrap. It requests that the thickness of metal stamping data be accurate and average; the exterior is bright, without spots, scars, scratches and external cracks; the yield strength is average, without obvious orientation; the average elongation is high; the yield strength ratio is low; and the processing hardness is low.
In practice, the stamping performance of hardware, which is similar to the stamping process of hardware, is often used to ensure the quality of waste products and high qualified rate.
The precision and structure of stamping die directly affect the forming and precision of metal stamping parts. Formation cost and service life of stamping die are important factors affecting the cost and quality of metal stamping parts. Stamping die design and manufacturing needs more time, which prolongs the consumption preparation time of new hardware stamping parts.
模座、模架、导向件的规范化和开展简易冲压模具(供小批量消费)、复合模、多工位级进模(供大量消费)，以及研制快速换模安装，可减少五金冲压消费准备工作量和缩短准备时间，能使适用于减少五金冲压消费准备工作量和缩短准备时间，能使适用于大批量消费的 Advanced metal stamping technology is reasonably applied to various types of consumption in small batches.
Hardware stamping equipment is usually formed by mechanical punch, except for thick plate forming by hydraulic press. With modern high-speed multi-station machine punch as the center, equipped with uncoiling, leveling, scrap collection, delivery and other machinery, as well as stamping die library and rapid die-changing installation, and controlled by computer program, the automatic metal stamping consumption line with high consumption rate can be formed.
Under the condition of consuming tens or hundreds of metal stamping parts per minute, the processes of feeding, metal stamping, discharging and discharging waste materials are completed in a short time, which often results in personal, equipment and quality accidents. Therefore, safe consumption in metal stamping is a very important issue.
Cold-punched metal stamping parts are usually no longer machined, or require only a small amount of cutting. The precision and appearance of hot stamping metal stamping parts are lower than those of cold stamping metal stamping parts, but they are still better than castings and forgings, and the cutting quantity is less.
Metal stamping is an efficient consumption method. By using compound dies, especially multi-station progressive dies, multi-channel metal stamping process can be completed on a punch press, and automatic consumption from strip uncoiling, leveling, blanking to forming and finishing can be completed. Consumption efficiency is high, working conditions are good, consumption cost is low, ordinary can consume hundreds of pieces per minute.