Special tools for press brake

SPECIAL TOOLS

• Examples •

Swivel bending tool to bend joggle with two different angles

Toolset with die with mobile inserts to bend a U channel with internal radius 10 in one hit. The U sides are always parallel and the internal radius has no deformation.

Mould to make 3 bends in one hit

Mould to bend radius 46mm and arc deformation

Mould to bend pipe clamps

Tool to make hinge with internal diameter 15mm in 4mm stainless steel

Tool to make hemming and 90° bend

90° bend with die with cam and offset punch

Special treatments

Induction hardening

It represents our strength point; most of our tools are induction hardened and they reach up to 58-60HRc hardness.

The greatest advantage of induction hardening is the fact that only a specific area of tool is hardened, usually the area entering in contact with sheet metal. This area is very resistant to deformation and to wear, whereas the rest of the tool body keeps its original mechanical properties.

Induction hardening depth is variable, from 1.5mm to 6mm according to the dimensions and features of the hardened surfaces.

Nitriding

We nitride tools that required 56-58HRc hardness along the whole surface. Nitriding depth is quite low, about 0.4mm-0.6mm but this process enables the hardening of tools with specific shapes and critical dimensions without deforming them.

Phosphate coating, burnishing and zinc coating

These treatments are used almost for aesthetic purposes only. As they are carried out at low temperatures, they don’t deform tool shape, therefore they can be carried out at the end of the production process.

The most resistant treatment against oxidation is phosphate coating, which gives tool a dark-grey colour, then burnishing which gives tool a bluish-black colour and at the end zinc coating.

QPQ Tenifer

This treatment is usually used to improve sliding properties of treated surfaces and, therefore, to reduce sheet metal marks. It also prevents corrosion and increases the hardness of the whole tool treated.

Core hardening

Core hardening is less frequent and it’s applied to cutting inserts or to tools that have to bear high tonnage. We use core hardening on heavy duty steel like K110 or 1.2767 steel and for big tooling only.