Manufacturing Processes of Forged Wheels

The heat-treated wheel blanks are CNC turned to form a round and smooth surface, forming a profiled blank. The wheel profile of the blank is machined according to customer-specific requirements, such as specific concave or flat pattern, and designated offset/ET face.

The turned blank wheels are sent to CNC milling centers to cut out the front face patterns, windows, and spokes. this process can take days to complete, depends on the pattern of the wheel.

A unique process developed by PPE. To achieve an extra weight saving of the wheel on some specific models, such as the “Extreme” series, a patent-pending proprietary engineering process is done on the back of the wheel forming a distinctive 3D star shape weight saving pockets.

Stress Relief, Sharp Edge Removal, and Final Finishing
All PPE Wheels goes through a unique process that relief all stresses, removal of gails and sharp edges through a proprietary automated peening and polishing process. this process not just relieves all the tensile stress generated during machining, it also relieves all the internal stresses during the forging process thus improved fatigue strength (longer life) of the wheel. Since this process is done after all the major machining work, the resulting wheel after this process is a very stable object with no further mechanical distortion possibilities. The wheel is then sent to the final fine turning for absolute perfect roundness and hub centricity.

Powder Coating / Painting
All wheels are coated with special formulated powders, colored coatings, and clear coatings. The powders are a type of polymer that bakes onto the wheel surfaces designed to form a hard surface with long life.

The QC team validates every critical measurement according to a detailed engineering diagram. The measurement of the roundness of the spinning wheel is most important. FT-Motors wheels are tested for runout tolerance.