Sheet Metal Fine Blanking

Hope the following picture of a stamping factory experience will help you understand what is fine blanking and what difference between fine blanking and common punching and blanking process for sheet metal parts.

Sheet metal fine blanking.

Fine blanking permits 3 d composite processing including coining semi shearing bending and drawing. Detailed process introduction of punching and blanking. Progressive stamping rotary stamping high speed stamping metal forming fine blanking aluminum stamping stainless steel stamping and many other punching and blanking fabricating services with variety of. Image courtesy of dayton progress.

The material that is removed is the new metal workpiece or blank. Shearing sheet metals the sheet metal blanking process is require such as blanking punch blanking die blanking press and sheet metal stock. For example disk or plane washers are manufactured using blanking operation. After blanking operation the parts will be require secondary finish to smooth out burrs with bottom edge the fine blanking process is most method of blanking.

Blanking is a cutting process in which a piece of sheet metal is removed from a larger piece of stock by applying a great enough shearing force in this process the piece removed called the blank is not scrap but rather the desired part blanking can be used to cutout parts in almost any 2d shape but is most commonly used to cut workpieces with simple geometries that will be further shaped. Fine blanking is a fully automated precision metal working stamping process. Fine blanking ensure stability regarding production with high quality and precision. Blanking is a metal fabricating process during which a metal workpiece is removed from the primary metal strip or sheet when it is punched.

Home metal fabricating tips facts blanking process. As a result the blank part is used as the final product. The working principle fine blanking of a typical spur gear is presented in fig. It is also similar to stamping but differs in the sense that it uses two opposing dies to form the gear from sheet material.

Figure 1 when a punch makes contact with the sheet the metal begins to deform and bulge around the point of the punch. Blanking and piercing are shearing processes in which a punch and die are used to produce parts from coil or sheet stock. Characteristics of the blanking process include. The tooling of fine blanking clearance will affect the final stamped part burrs height.

Place the metal sheet to be punched between the punching machine and the die. Fine blanking is similar to extrusion where the metal is extruded through die cavities to form the desired gear tooth geometry. The web is created after multiple components have been produced and is considered scrap material.