Sheet Metal Fine Blanking

Fine blanking is similar to extrusion where the metal is extruded through die cavities to form the desired gear tooth geometry.

Sheet metal fine blanking.

Fine blanking permits 3 d composite processing including coining semi shearing bending and drawing. The tooling of fine blanking clearance will affect the final stamped part burrs height. 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.

Fine blanking ensure stability regarding production with high quality and precision. Detailed process introduction of punching and blanking. Blanking produces the outside features of the component while piercing produces internal holes or shapes. As a result the blank part is used as the final product.

For example disk or plane washers are manufactured using blanking operation. Blanking and piercing are shearing processes in which a punch and die are used to produce parts from coil or sheet stock. Image courtesy of dayton progress. The working principle fine blanking of a typical spur gear is presented in fig.

Characteristics of the blanking process include. 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. The web is created after multiple components have been produced and is considered scrap material. 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.

As explained in the above image the blanking operation produces an enclosed part from a large piece of sheet metal. Shearing sheet metals the sheet metal blanking process is require such as blanking punch blanking die blanking press and sheet metal stock. Place the metal sheet to be punched between the punching machine and the die. 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.

The material that is removed is the new metal workpiece or blank. Fine blanking is a fully automated precision metal working stamping process. Home metal fabricating tips facts blanking process.