The ring preparation line forms a high-quality plate to a flared shape ring for the roll forming process. The strip will be coiled very precisely, to guarantee that the ends of the strip are perfectly aligned towards each other.
The TC buttwelding process is executed with a minimum of energy and upset to save energy, material and to reduce the scrap rate (close to zero). TC stands for Temperature Controlled, as Fontijne Holland has the know-how to start the Upset process based on the temperature in the weld.
The buttweld is dressed with innovative process solutions to obtain a perfect weldseam, without excess material and an improved yield strength of the weld affected zone. The welddressed ring will be sized and flared to a perfectly round product with a known diameter. This roundness will have a positive effect on the final runout of the wheel. You can eqipped the ring preparation line with a stacker / de-stacker station for a user-friendly loading.
The Fontijne Holland ring preparation line for commercial vehicle wheels, originally designed for wheel production, can also be used for other applications, where a steel strip needs to be transformed into a ring.
The stacker / de-stacker is a buffer which enables a continuous feed of plates to the ring preparation line, also during coil change.
The plates can be marked with a code defined by the customer.
The plates are bent in the 3+1 rolls coiler to form a ring.
The ends of the ring are formed to flat ends, ensuring optimum clamping for the welding process.
The perfectly aligned ring is transported and rotated to the welder loader (weld seam at the top becomes weld seam at the bottom).
The ring is loaded to the TC-welder.
The TC* welder welds the ring. This is the heart of the preparation line, herewith the final quality of the weld will be made.
Mechanically the Fontijne Holland welder offers unique features:
TC buttwelding is not always possible, due to local circumstances, material or cross-section, therefor Fontijne Holland offers DC welding and DC Flash welding. Mechanically there are no compromises, this is all integrated in our innovative weld control platform.
*TC stands for Temperature Controlled, as Fontijne Holland has the know-how to start the Upset process based on the temperature in the weld. The unique features weld control 4.0 are:
The ring is automatically transported from trimmer to cooling station.
After the welding process the inside and outside of the weld is trimmed.
The Weld Seam Roller remains the height difference after the trimming process.
The bulges at the front and the rear of the weld are removed by the side trimmer.
The weld is cooled to ensure a homogeneous behavior of the ring material in the flaexpander process.
Finally the ring is re-rounded and flared.
The Fontijne Holland ring preparation line for commercial vehicle wheels do not only manufacture rims. Any sheet metal product that needs to be formed and/or profiled, can be produced on our equipment. If you need assistance with the production of your products, please contact us.