Fine blanking dies

Thanks to dies designed and created with the appropriate construction criteria, together with presses equipped with multiple hydraulic forces, and the use of specific materials and lubricants, GRB manufactures components featuring extremely precise dimensions and geometries.

Normal blanking

Fine blanking

In this type of technology, the dies play a fundamental role because they are the actual tool that transforms a metallic strip into a blanked, coined, crimped component as required. Below are examples of a few of the possible designs of modern dies used for progressive fine blanking, featuring one or more impressions.

Conical and cylindrical flarese

Welding projections

Coining

Shearings

Chamfers

Crimpings and double crimpings

Deep drawings

Dies for traditional blanking

Components permitting, what better and more economic solution than a traditional blanking die! Nowadays, thanks to the huge advances in automation technology and the application of powerful gas springs, auxiliary hydraulic and pneumatic forces, together with threading, drilling and bending units, the possibilities offered by this type of equipment is practically endless.

Transfer blanking dies

Transfer blanking dies achieve what fine and traditional blanking dies cannot (not even if you use both together); from a manufacturing point of view, transfer blanking technology has no rivals.
Thanks to independent blanking, crimping, coining, etc. units, it is possible to develop the component step-by-step, totally independent of the strip, allowing the creation of deep drawings, complex crimpings or important cold forging with maximum economy in terms of raw material.

Engineering department

Because dies are a fundamental part of a good blanking process, GRB not only relies on over 50 years' experience, but also modern cad/cam systems, traditional and CNC machines, as well as a prototype, manufacturing and setup department for the development of equipment from the initial concept to the final test.

In particular, considering growing requirements in terms of precision and production speed, we have recently adopted a series of machines specifically for finishing active die parts, including:

• N. 1 „Fanuc“ wire EDM machine
• N. 1 „Ona“ die sinker EDM machine
• N. 1 “Catmur” jig grinding machine (N.B. optional)