Improving weld seam quality and lowering production costs – furniture manufacturer Embru reaps the rewards of CMT
Embru Werke AG, Switzerland
The top-quality furniture is mainly made from steel profiles. The challenge the firm faces is welding the intersections and joints so that they are as stable as possible, with no spatter to rule out the need for any mechanical reworking. In addition, if the heat input is too high when welding the sheet-metal surfaces of drawers and other external parts, heat distortion ensues, which is clearly visible after painting. Conventional arc welding processes such as TIG or MAG welding are therefore unsuitable due to their high heat input.
“By using the CMT welding process we save hundreds of hours of manual rework every year. This has also had a positive effect on our bottom line.” Fabian Süess, Foreman at Embru
The furniture manufacturer has been reaping the technical, economic and quality-related rewards of the innovative CMT process from Fronius since the end of 2007. The stable arc ensures there is a permanently robust join between the steel profiles. Thanks to its low heat input and spatter-free material transfer, CMT welding leaves the critical sheet-metal surfaces distortion-free and even, ruling out the need for subsequent manual surface finishing. Not only does this save time, it also has a positive impact on the quality and profitability of the company’s manufacturing processes.