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The Functionality Involves In Stamping Dies

stamping dies

The expression “stamping dies” is a general term used to describe the tooling used to produce stamped parts. A stamping die set consists of male and female components which work in opposition to both to form and punch holes in the metal.

Stamping dies are the devices used in stamping machines. Each stamping machine can have one or more stamping dies depending on the type of the machine and the kind of the work it is performing. Stamping dies are the key components in stamping machines that do the actual punching, casting, cutting and shaping of the metal sheet.



The birth of stamping dies

Stamping is the process used to cut and form the metal sheet into a required contour with the help of a tool known as stamping dies. Metal components are used widely, from your desktop to aircraft; all are manufactured by means of stamping dies. The preliminary phase in the stamping tool and die making is stamping die design and is carried out as soon as the component design is completed. This preliminary step of drawing stage of the stamping die is extremely crucial because only a good quality stamping die blueprint can produce perfect stamped components which are durable and require less maintenance.

Press tool die design necessitates selecting manufacturing processes, desired metal stamping operations, basic strip layout, and type of stamping presses and so on. A good tool designer has a thorough knowledge of these elements to construct a perfect press tool die design. In the past decade, computers aided design techniques have developed to assist stamping die designers.



A design for accurate production

There is a range of functionalities involved in press tool die designs which are essential for accurate production. The very first stage in stamping die design is the process of evaluating the part to be made, dimension, its properties and complexity of the form. Next, the designer will carry on with the strip layout design and then he will finalize the cutting force and the stamping die-set to be used and then starts making the assembly sketch. Thereafter, drawing of die parts, part details, and the final step of preparation of the bill of materials is undertaken.


Fundamental operations of Stamping die

The basic die operations are shearing, drawing and bending. In stamping, the metal sheets are placed in a press tool which has a cavity that is particularly designed to give the preferred shape to the metal sheet. The upper part of the stamping die connects to the press slide while the lower part connects to the press bed. There are many different kinds of stamping dies such as single station dies, compound dies, progressive dies, multiple stations dies, and tandem press lines.

Stamping dies could be placed in metal panels by itself or as a series of presses in a press line. Stamping dies and presses can possess different input variables on the basis of press parallelism, tonnage, shut height, and counterbalance pressure and speed of the press. By replacing one set of dies with another the same stamping press can be reused. The placement of stamping dies is known as die setup. The number of parts produced in a die setup is called a batch.



Types of stamping die

The most common types of stamping die perform cutting and forming operations. Cutting dies are used to shear sheet material. Punching is an additional function of cutting dies. Punching is the removing of a slug from the sheet metal stock to produce a slot or a hole. The forming operations accomplish by stamping dies are drawing, bending, flanging, hemming.

Multiple operations could be performed within a single stamping die, or at a number of stamping die stations within a die set and with a single stroke of the press. Single station stamping dies can be either combination dies or compound dies. Multiple station dies are arranged so that a series of sequential operations are accomplished. 

Press tool die design is not just an art but also in a true sense, a science. It plays an important role in our day to lives.

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