FOCUS ON WELDING
1964 , the company has launched numerous innovations . Its core business includes roof waterproofing membranes ; roof edge profiles ; roof edge covers ; wall connecting profiles ; fastening systems for secure installation of solar systems and installation of daylight systems ; and flat roof drainage systems . Its products are developed and manufactured at sites in Trier and Hermeskeil , where around 300 people are employed .
Almost all its products need to be welded , which is why joining technology is so important for the company . The quality of the weld seam must impress across many designs , so that it is not only highly functional but also looks aesthetically pleasing .
“ We are continuously adapting our product range to market requirements while taking innovative approaches ,” explained Florian Pfeifer , production manager in Alwitra ’ s aluminium division . “ To best meet the needs of our customers , we rely on the use of highquality welding machines .”
Aluminium roof-edge profiles from Alwitra .
Alwitra flat roof vent .
Automation of standard products
Up to now , Alwitra has relied on a standard pulse MIG process to manufacture its components . Due to the large proportion of bespoke products that it manufactures , the level of automation in the company remains low . The proportion of automated welding at Alwitra is around 30 per cent , but this number is growing . This is because automation of welding processes is particularly well suited to the production of standard components .
“ We see great potential here , as we can improve the quality of the results while reducing costs at the same time ,” emphasised Florian Pfeifer . “ When using welding robots , process stability also plays a major factor for us .”
“ EWM React comes into play here . The combination of a short arc process and digital welding process control , supplemented by a dynamic torch drive , is designed to enable a precise automated welding process that delivers perfect weld seams ,” added welding specialist , EWM .
Controlled droplet transfer
“ React ” stands for “ reversing actively controlled transfer .” In this new process from EWM , the welding droplet is transferred to the weld pool in a controlled manner . This is
Rails from Alwitra for mounting roof solar panel systems .
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