FAQ

Svetsning, jigg- & punktsvetsn

Frequently asked questions and answers to the questions.

What is resistance welding?

It is a method of permanent joining of metal elements. Electric resistance is a natural property of metal, which helps to change the physical form of the welded elements from solid to plastic. The workpieces are then durably connected by being pressed.

What is the difference between pressure welding and welding?

Pressure welding is a natural process which does not use any foreign materials. Pressing is an important part of pressure welding that does not occur in welding. In pressure welding the human factor involvement is minor, and all calculations, pressing and the process are performed by the machine. A welding machine can work without a break and make many identical, high-quality welds.

When is pressure welding of metals used?

For large production volumes when constant welding quality of metal elements, reproducibility and accuracy are important.

How will I know what ASPA machine I need?

The section called Issues presents different aspects of resistance welding. It contains video instructions and explanations. Knowledge of the welded product is a half success. Contact our Sales Department to talk about welding technologies and select the right machine from our range. Our Sales Person will help you choose a standard machine or recommend non-standard solutions, depending on your needs.

Read more: How to choose a welder?

If I buy a welder, will I have to employ a specialist? Does an operator need certificates, courses or training?

No, you won’t. Pressure welding, contrary to welding, does not require specialised courses and qualifications. Our standard machines are ready to use after short job instructions. They are easy to use and intuitive.

Can one welder be used for different elements?

Yes, of course. Our welders offer many opportunities of setting the welding parameters. Modern controllers allow the control of different features of the equipment and its use for various elements. Our welders are available in different options and configurations, which makes them as universal as possible.

What conditions do I need to have in my facility to use a welder?

First and foremost, you need to have an electrical connection suitable to supply the welder. You should note that welders are intended for industrial use only. It is forbidden to use welders connected to a low-voltage grid which supplies e.g. residential premises.

What elements are subject to wear and need to be replaced and how often do I need to have the machine inspected. What is the guarantee period?

We offer a 12-month guarantee for all welder components. The degree of consumables wear depends on several factors, including the number of completed welds, types of welds, working time, welded materials etc.

I would like to buy a welder, but I am not sure if it will be fit for the purpose. Is it possible to make tests using the materials I provide?

Yes, it is. If you supply the workpieces (via courier) that are intended for welding, together with a description and requirements, our specialists will carry out tests. Tests on ASPA testing station can be performed before buying a welder.

What happens if welding elements change and the construction or composition of new materials are different or production changes completely?

Every change requires modification of the welding parameters set on the welder controller. Moreover, depending on the modification volume, it may be necessary to change the electrodes or replace the whole welding instrument installed in the welder (for projection welders). If the process parameters necessary to weld new elements exceed the available machine parameters, the welder will need to be replaced or upgraded.

I intend to weld several sheets and the sheet thickness may vary. Can I change the welder settings myself?

Yes, you can. ASPA welders are featured with a controller which is easy to use and can help select the right process parameters. In order to select the right welding parameters for the welded workpieces, you can contact us by phone or e-mail. You can also order parameter setting service directly on your welder in our service team.

Is it necessary to identify a special working zone for each welder in relation to the presence of a magnetic field during welding?

A strong magnetic field is generated around welders when the welding current flows. Under some circumstances, the field value can be dangerous for health. According to the regulation of the Minister of Labour and Social Policy of 6 June 2014 on the highest admissible concentration and intensity of factors harmful for human life (Journal of Laws item 817 and of 2016, item 944), areas where strong electromagnetic fields occur (hazard zone, danger zone and intermediate zone) shall be identified and marked near sources of electromagnetic fields. One can learn if such zones really exist only after making measurements under real operating conditions (when welders operate at real working parameters). Such measurements may reveal that under real working conditions (especially with the welders you use) there are no hazard zones or that the zones do not go beyond the welder base.

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