What are the Types of Metal Stamping |
Posted: November 30, 2022 |
Metal stamping is a process of transforming metal sheets or coils into specific shapes and sizes to form the desired part. It uses some specialized tools that involve the stroke of a punch in order to bring conformational change to the sheet metal. With a sufficient amount of force, metal stampers can cut a metal sheet into the desired shape. The metal stamping process begins with designing the tooling for the process using computer aided design and computer aided manufacturing. The tooling is precision engineered which ensures each punch, bend or cut has a proper clearance to produce products with high quality. Once the tooling is completed, there is a number of options a stamping part manufacturer can use to produce the final part. The following are the types of metal stamping methods that are beneficial in creating components for different industries. Progressive Die Stamping: In this type of metal stamping, sheet metal is unrolled and fed into the press and passes through different tooling stations. The sheet remains to stay in the conveyor system of the stamper and the part stays connected in its base strip throughout the entire process. The workpiece stops at each station and is shaped by a die before it starts to move on. Then the press moves up and the sheet moves in the bed horizontally and the part is formed as the workpiece progress through the different stations. The finished part is ejected from the sheet at the last station. The main advantage of this stamping type is the quick production of parts with complex geometries, high repeatability, tight tolerances, and low labor costs. Transfer Die Stamping: In this type of metal stamping, the workpiece is separated from the metal sheet and transferred from one stamping station to another. The separated materials are then transferred to different presses that enable the fabricator to produce several parts. It is used in forming larger parts and used in processes with intermediate steps for the separation of the part early in the process that can be more efficient. Fourslide Stamping: This is also known as multi-side stamping in which the rams are aligned horizontally and slide toward the workpiece. This type of stamping process is different from the stamping process which requires a downward stroke or press. Each slide has a tool that can simultaneously bend, twist, cut or form a horizontal stroke. This type of machine can have more than four moving slides. This metal stamping type produces less scrap and reduces material cost because the raw material can be bought to a width closer to the finished part. Compound Stamping: In compound stamping, the die can perform several operations like cutting, bending, and punching in one stroke. A metal sheet is continuously fed into the stamper and the completed part is ejected out from the metal strip. A stroke can create multiple holes and cuts in the workpiece without the use of multiple dies, which reduces production time and increases cost savings. Conclusion: Metal stamping is an excellent operation that can perform cutting and forming operations quickly which results in a high production rate, high repeatability, accurate precision, and low labor and maintenance costs.
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