Technologies and machinery

Wire straightening and cutting

One of the first processes in the manufacture of wire products is wire straightening and cutting. For these operations we use straightening and cutting machines which are suitable for wire diameters of 1.8 to 12 mm. The maximum length of the straightened wire is 2000 mm depending on its diameter.

cutting machine

Straightening and cutting machine
VASPO
(Click on photo to enlarge)

cutting machine

Straightening and cutting machine
VASPO
(Click on photo to enlarge)

straightened wires

Straightened wires
in various dimensions
(Click on photo to enlarge)

Wire Bending

For wire bending we use mainly CNC bending machines that enable both 2D and 3D wire bending. With these machines we can achieve the highest degree of precision of the final components while sustaining high work productivity and, compared to mechanical bending machines, we also achieve a higher flexibility.

In some cases we also bend wire mechanically using bending jigs adjusted for the specific use. The choice of the bending method depends on the specifications of the individual contract.

bending machine

Bending machine
Micro-Mac, PAVE
(Click on photo to enlarge)

bending machine

Bending machine
CNC 62, OMCG
(Click on photo to enlarge)

bending machine

Bending machine
The Axis VI + Huron VIII, PAVE
(Click on photo to enlarge)

Wire welding

Resistance welding

In the manufacturing of wire products we use two different resistance welding methods – spot welding and flash welding.

Spot welding is used to join two overlapping wires - we apply this method in the production of grills. Flash welding is used to join two wire ends together; its main application is in welding wire frames.

In resistance welding the weld is produced by the heat generated by the flow of electric current through the welded spot. The welded area becomes hot, it softens, and the resultant pressure welds the work pieces together. The heat necessary for welding is not supplied from outside but it is generated within the material being joined. The source of heat is the electric current in the spot where the work pieces join. The advantage of this welding method is a higher production rate and the fact that the work pieces can be placed in all positions.

MIG/MAG welding method

In order to join metals, most welding methods require generation of high local temperatures. A particular welding method often gets its name from the type of the heat source – e.g. flame welding, arc welding etc. Another distinctive feature is the form of protection of the hot metal from the atmosphere (e.g. welding under welding flux, utilization of shielding gases etc.) – which is often necessary as at high temperatures metals react faster with atmospheric gases.

For welding we also use the MIG/MAG method. It is an arc welding method with an application of shielding gases (MIG - Metal Inert Gas, MAG - Metal Active Gas). The heat source is an electric arc produced between the continuous welding wire and the weldment. Elektrical energy transformed into heat produces an arch with a maximum temperature of 6000°C, which causes the metals to melt and join. The arc and the welding bath are protected by a stream of inert or active gas.

This method is suitable for the manufacture of wire products because the welded metal can be placed in all welding positions and it can be also used for welding of very light to medium heavy steal constructions.


welding machine

Welding machine
BPS 10.250 AV-DC, AWECO
(Click on photo to enlarge)

welding machine

Welding machine
BPS 6.250A, AWECO
(Click on photo to enlarge)

welding machine

Welding machine
Almega AX, ROBOTEC
(Click on photo to enlarge)

Finishing processes

These are processes that put the finishing touches to the almost finished product. Their character varies depending on the specific product - they may include trimming of excessive wire ends, profiling, bending of work pieces into the requested form etc.

Machinery used

Machines for wire straightening and cutting designed for wire diameters of 1.8 to 6 mm. The maximum length of the straightened wire is 2000 mm depending on its diameter.

CNC 2D and 3D bending machines designed for bending wires diameters of 2 to 12 mm. With these machines it is possible to achieve a high accuracy of the work pieces while sustaining high work productivity.

Mechanical bending machines for mechanical wire bending by application of bending jigs.

Spot welding machines for resistance welding in one or several spots.

Flash welding machines for resistance welding of two wire ends; its main application is in welding wire frames.

Press welders for resistance welding of wire grills of maximum dimensions 1,400 x 1,600 mm.

Automated welding workplaces designed for MIG/MAG welding method.

GRIOS Wire Products