Schwerdtle engraves three dimensional designs on sonic welding rolls. Decorative engraving onto sonic assembly tools combines functionality with decorating. Decorative patterns add value to the end product when compared to standard “stitch” designs. Schwerdtle’s Art Department can offer suggestions on appropriate designs for your rolls. Our expertise in 3D surfacing and engraving on complex surfaces allows us to create decorative sonic welding tools that are both functional and add a distinguished design to your products.




Ordinarily, we will receive the sonic welding horn (sonotrobe) and anvil blanks, or welding wheel blanks from the customer and engrave decorative designs into the surface that will appear in the welded mark. An example is a sonic stitching wheel for a shower curtain. Why have a boring stitch design when you can have a decorative, continuous floral pattern that is both functional and decorative? Our decorative tools differentiate your products from the competition. Other examples include complex specialty patterns engineered to provide extra strength to the welds. This is common practice in the automotive or aeronautical industries.