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Fineblanking Characteristics and Advantages
Fineblanking utilizes triple action hydraulic presses and an impingement ring or v-ring to trap material in the cutting window.
This creates capabilities similar to a cold metal extrusion process for Fineblanked Stamps.
Parts up to 5/8" thick can be fineblanked with requirements that include any or all of the following:
- Parts requiring surface finishes on sheared edges down to 16 Ra finish
- Parts with close flatness tolerances
- Parts with tight dimensional tolerances
- Parts with holes and/or slots smaller than material thickness
- Parts with wall thickness less than material thickness
- Parts requiring secondary operations such as drilling, reaming, countersinking and grinding
Fineblanking offers these advantages over conventional stamping, machining, casting or forging:
- Cleanly sheared edges
- Superior flatness
- Tight dimensional tolerances
- Uniformity of position from feature to feature
- Stronger parts
- Reduces or eliminates costly secondary operations
- Produces complex "net shape" finished parts in one or two operations
- Holes smaller than material thickness, close to the edge of the part
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