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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.
Detailed process introduction of punching and blanking.
Characteristics of the blanking process include.
Fine blanking is a fully automated precision metal working stamping process.
Place the metal sheet to be punched between the punching machine and the die.
Fine blanking permits 3 d composite processing including coining semi shearing bending and drawing.
For example disk or plane washers are manufactured using blanking operation.
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.
Blanking and piercing are shearing processes in which a punch and die are used to produce parts from coil or sheet stock.
Fine blanking ensure stability regarding production with high quality and precision.
As explained in the above image the blanking operation produces an enclosed part from a large piece of sheet metal.
Figure 1 when a punch makes contact with the sheet the metal begins to deform and bulge around the point of the punch.
Shearing sheet metals the sheet metal blanking process is require such as blanking punch blanking die blanking press and sheet metal stock.
Blanking is a metal fabricating process during which a metal workpiece is removed from the primary metal strip or sheet when it is punched.
The working principle fine blanking of a typical spur gear is presented in fig.
As a result the blank part is used as the final product.
The web is created after multiple components have been produced and is considered scrap material.
The tooling of fine blanking clearance will affect the final stamped part burrs height.
Image courtesy of dayton progress.
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.
Blanking produces the outside features of the component while piercing produces internal holes or shapes.
Home metal fabricating tips facts blanking process.
