Seaming - Import export

QuellTech Solution For this purpose, QuellTech offers a perfectly tailored seam tracking solution, which is based on a QuellTech 2D-Laserline Sensor of the Q4 family. The method consists in measurement of the real position and width immediately ahead of the welding process. The laser sensor captures the real dimension of the weld bead, and the software used for this process simultaneously sends the nominal position to the robot. The robot performs a correction movement in X or Z position according to this measurement. This way not only the deviation caused by tolerances, but also the warping effect can be compensated – and the weldment takes place exactly at the required position. The QuellTech 2D-Laserline Sensor is specially prepared to the highly disturbing ambient light from the weld process. It can be cooled and protected from weld spatter, so this model proves to be particularly adequate for operation in the harsh environment of the welding process.

Initial Situation: Inspection of a laser weld seam for pores and geometrical anomalies The production of a client in automotive industry is subjected to extremely stringent quality requirements. This is valid particularly also for the precision of laser weld seam of fine mechanical work. 100% inline supervision is required for the following task: A laser weld beam (width ca. 200µm) has to be verified with respect to the presence of pores and geometrical anomalies. Camera inspection performed until now turned out to be not stable. Therefore the client is forced to implement an improved monitoring process. The challenge The resolution required amounts to 4µm. The high gloss finished material and glossy laser weld seam may give rise to reflections, and the space for installation is restricted. A low form factor for the monitoring equipment is imperative.

Particular challenges To correct the effect of the tolerances of the parts, the welding robots path in conventional applications is usually adjusted, by means of a time consuming manual correction (teaching). The warping effect caused by the thermal expansion however cannot be compensated this way. For this purpose, QuellTech offers a perfectly tailored seam tracking solution, which is based on a QuellTech 2D-Laserline Sensor of the Q4 family. The method consists in measurement of the real position and width immediately ahead of the welding process. The laser sensor captures the real dimension of the weld bead, and the software used for this process simultaneously sends the nominal position to the robot. The robot performs a correction movement in X or Z position according to this measurement. This way not only the deviation caused by tolerances, but also the warping effect can be compensated – and the weldment takes place exactly at the required position.

Bottom-seam bags are perfect for heavy weights. The extremely strong bottom-seam guarantees safe filling and transportation, even under high stress conditions. Bottom-seam bags are used, among other, in the building materials industry, chemical industry or in the gardening industry. We would be pleased to give you advice about our bottom-seam bags. We look forward to your inquiry by mail or by phone: +49 (0)9181/2960-0!

Side-seam bags are used for transportation and protection of light contents. Solid welding seams and easy confectioning turn the side-seam bags into an economically priced all-round solution. We look forward to your inquiry by mail or by phone: +49 (0)9181/2960-0!

ROTAWELD is our platform to cover a wide range of applications requiring circumferential seam welding. The precision servomotor rotation axis combined with our advanced control system form the basis for the production of accurate and repeatable circumferential seam welds. Machine sizes, part holders, welding equipment, torch holders and any additional positional axes are designed specific to the customer and their products.

Schnelldorfer CORNERWELD seam welding machines have been designed to weld sheet metal plates in a 90° joint. The precision clamping system with inert gas coverage and advanced OEM control package precisely controls the welding sequence and weld parameters, resulting in the perfect weld for your corners. CORNERWELD applications include welded corners for food, medical equipment, HVAC drip pans, electrical enclosures, and laboratory furniture. Complex inward and outward flanges can be accommodated with custom made tooling pieces. A wide range of materials can be welded, including Stainless Steel, Carbon Steel and Aluminium. Complete welded parts do not require any costly grinding, polishing or blending thus greatly saving on manufacturing costs.