Fine Blanking Process Sheet Metal

Characteristics of the blanking process include.

Fine blanking process sheet metal.

Different from normal. Fine blanking is similar to extrusion where the metal is extruded through die cavities to form the desired gear tooth geometry. It ranges from 0 0003. Fine blanking process is one the specialize type of process.

Fine blanking is a high precision metal forming process used extensively in the automotive heavy duty electronics medical lawn and garden and general industrial industries. The working principle fine blanking of a typical spur gear is presented in fig. Figure 1 when a punch makes contact with the sheet the metal begins to deform and bulge around the point of the punch. Image courtesy of dayton progress.

If the finished part is to later have exact right angled cut edges it must be reworked. This post processing can be dispensed with if the sheet metal parts are finely cut. Fine blanking permits 3 d composite processing including coining semi shearing bending and drawing. It is also similar to stamping but differs in the sense that it uses two opposing dies to form the gear from sheet material.

The material that is removed is the new metal workpiece or blank. The web is created after multiple components have been produced and is considered scrap material. Fineblanking is a specialty type of metal stamping that can achieve part characteristics such as flatness and a full sheared edge to a degree that is nearly impossible using a conventional. Most of the equipment and setup for fine blanking is similar to conventional.

The fine blanking provides parts having smooth edge better flatness and high tolerance. Which blanking process sheared the sheet metal in three type of force separately applied. Punch direction press counter punch force compressive stress. 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. Fine blanking is a fully automated precision metal working stamping process. The sheet metal extrusions in fine blanking sme fb advantages over a conventional extrusion are possible due to a blank holder force a counterpunch force and a large die radius. Fine blanking enables the production of high precision parts by non cutting cutting and if desired simultaneous forming.

Blanking produces the outside features of the component while piercing produces internal holes or shapes.