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Home | About us | Hero MotoCorp Mufflers | Fine Blanking Components | Electric Motors

Fine blanking process was first introduced & patented by Germany in 1923. This technology was initially used for office machine industry &clock industry.

It is refined technique of conventional stamping .A hybrid metal forming process combining the technology of stamping & cold extrusion . Triple action presses combined with special designed tooling produce parts impossible to make with any other stamping process.

Fine blanking is extremely precise high volume manufacturing process which gives almost 100% sheared edge & flat parts with cost effectiveness & repeatability .It can replace several secondary operations.

In the last century several parts have been considered for manufacturing under this technology such as engine parts , door latches , window regulators , gear box part ,compressor parts ,exhaust flanges etc.

Several advancements in the fine blanking technology has been done through CNC tool room machines, CNC presses & raw material developments thus

Working Principle

Process Sequence

The Complete Fineblanking Cycle :

Conventional Stamping

Fineblanking

	Production Method
	Single-action machine material strip not firmly clamped during the blanking operation

	Features
	Sheared surface 1/3 s sheared surface 2/3 s Flatness Deflection of part during the blanking operation
	Tapered die-plate. Difference in dimensions after to re-grinding

	Conventionally stamped surface


	Structure

	Production Method
Triple-action machine FS = Shear Force FR = Vee-ring indenter Force FG = Counter Force Material Strip is firmly Clamped during the blanking operation by V- ring indenter and Counter Force

	Features
	Sheared Surface max 90% clean cut Close dimensional tolerances Maximum angular accuracy Minimum die-roll opposite the burr side Improved flatness Cylindrical die-plate, thus no difference in dimensions caused by re- grinding. Fineblanked surface


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