Welding services

The welding process is our core competency, carried out by either welding robots or permanently employed qualified welders. This process is thoroughly controlled by a group of International Welding Engineers (IWE). In order to ensure that the welded products can be utilised according to their intended use, it is necessary to provide supervision starting from the designing stage, through selection of basic materials and additives, manufacturing process and subsequent control.

 

PN EN 15085 – Railway applications – railway vehicles and components

In order to be able to confirm compliance with the requirements valid for welding processes in railway applications we have implemented and certified quality assurance system consistent with PN EN 15085 standard.
Due to its specific features, welding process requires carrying out a series of actions regarding the process itself, material management, supervision of the equipment as well as inspections and tests performed before, during and after welding.
Meeting the standard requirements enables to confirm conformity of welding new components at CL1 class level in our company.
We are able to make such components for the railways industry as:
– partitions;
– walls;
– doors;
– panels;
– supporting frames for internal parts (electrical systems, air conditioning, reservoirs);
– driver’s cab equipment;
– equipment boxes;
– stairs, handrails;
– frames of seats, windows;
– and many others…

 

 

PN EN 1090-2 –Production of steel structures

Market demands forced the increase in requirements for manufacturers of welded structures. Meeting the specifications contained in the PN-EN 1090 standards makes it possible to confirm that the structures offered to the clients are produced under conditions being supervised by qualified and authorised personnel. Thus, their quality is appropriate. In order to ensure fulfilment of all the requirements enabling to make steel structures for construction industry we have implemented and certified the quality assurance system consistent with the PN EN 1090-2 standard, therefore we are able to make structures in EXC3 class.

 

PN EN 1090-3 –Production of aluminum structures

We have implemented and certified quality assurance system consistent with PN EN 1090-3 standard. The audit confirmed that Base Group is able to maintain the standard of construction of aluminum and aluminum alloys. Base Group has the necessary qualifications and appropriate measures to ensure the execution of the construction according to EN 1090-3 EXC3 class.

 

Personnel

The company employs highly qualified and experienced staff of welders and operators as far as methods: 131, 135, 136 (MIG / MAG) and 141 (TIG) in material groups corresponding to the Welding Performance Qualification Records (WPQR) held by Base Group are concerned.
The team of welders has appropriate qualifications specified in the following standards:
-PN-EN ISO 9606-1 ( PN-EN 287-1);
-PN-EN ISO 9606-2;
-PN EN 1418.

 

Equipment

When carrying our welding operations we use modern equipment provided by such renowned manufacturers as Fronius (CMT Trans Puls, TPSi, Magic Wave) Kemppi (FastMig Pulse, Kempact Pulse, Kempoweld, MasterTig), Esab(LAW), as well as modern welding robots made by Panasonic. They allow us to fully control the process, thus ensuring the highest quality of joints.

 

 

Methods

-MIG (131) – We offer Metal Inert Gas Welding (Ar, He, Ar + He) according to valid standards. We carry out and build-up welding in all welding position with automatic or semi-automatic machines.
-MAG (135) – We provide services related to Metal Active Gas welding (CO2, CO2 + inert gas).
-FCAW (136) – We also perform Flux-Cored Arc Welding with active gas shield.
-TIG (141) – Moreover, we provide services related to Tungsten Inert Gas welding.

 

Welded materials

-Structural steel; material group: 1,1-1,2 (e.g. S355) with high strength, used to build structures exposed to weather conditions (bridges, masts, railway wagons),
-Stainless steel; material group: 8.1 (e.g. 1.4301, 1.4404, 1.4435)
-Aluminium; material group: 22-23 (e.g. 6082, 5083,5754)

 

Presentation of the Welding Performance Qualification Records (WPQR)

PDF version: WPQR, WPAR records.pdf