Bacol Fine Blanking Ltd. - Fine Blanking Process / Operation -

Fine blanking Principles Definition: fine blanking is a hybrid metal forming process combining the technologies of stamping and cold extrusion. Triple-action presses combined with specially designed tooling produce parts difficult and costly to make by any other stamping process.

Comparison of conventional blanking and fine blanking processes

Parts produced by conventional blanking on a press with only one punch force display severe tearing of the cutting edge. Cutting edges produced in tools with a large cutting clearance are not at right angles, have a very rough surface and cannot be used for certain applications without the use of additional machining operations. The nature of this cutting process causes a deterioration of the part flatness.

Fineblanked parts, which are produced on a press with three active forces, have clean, right-angled cutting edges. The cold extrusion of the worked material using closely tolerance tools prevents the tearing effect synonymous with conventional blanking. The improved flatness and clean cut edges enables parts to be used without the need for reworking.

News

Bacol Fine Blanking achieved ISO 14001 Environmental accreditation in October 1999.

Bacol Fine Blanking achieved TS16949 accreditation in October 2004.