Thanks to the implementation of the ISO9001 Quality Management System at Turismo, preventive actions have been introduced to detect potential production defects.
Quality control begins with a detailed verification of suppliers, their components, and prefabricated parts. In this regard, metallographic tests are commissioned, which can reveal discrepancies at the microscopic level in the wheel's prefabricated part. Next, a two-stage 3D project control is carried out to determine the strength limit of a given pattern for the material used. This is also the point at which the project's alignment with the vehicle's technical parameters is verified.
The production of wheels, including milling and painting, also adheres to strict internal factory procedures.
The implementation of the ISO9001 Quality Management System at Turismo initiated a highly detailed, multi-stage supply control process to help detect potential post-production problems. Simultaneously, a new position was created within the company - Quality Control Specialist. A qualified employee conducts an examination of every wheel produced at Turismo.
The first stage is visual inspection, aiming to verify the quality of the paint coating.The next phase of the inspection involves verifying the geometric parameters of the wheel. During this examination, any discrepancies resulting from errors in CNC programming are detected. The final stage involves measuring radial runout of the wheel. A result exceeding the acceptable deviation scale directly affects the vehicle's vibrations and driving characteristics.
If a wheel receives a negative result in any of these tests, it is sent back to the appropriate production stage.
The wheel design process is divided into a graphic stage and a CAD stage. The graphic stage involves conceptualizing the design in graphic sketches. In the 3D sketch stage, remarkable shapes and details can be achieved, which are then verified in the subsequent CAD step.
The modeling stage (CAD) is the pre-production part of creating forged wheels. In this phase, shapes that can be produced with CNC machines are designed, taking into account the wheel's metric parameters. The CAD stage is the most crucial moment in the forged wheel production cycle. However, designing cast wheels (flowform) is a more complex process because, in this case, a special mold must be produced in advance to achieve the desired shape of the wheel's rotor. During modeling in this case, every move must be carefully considered, whether in terms of negative impressions (technological conditions for mold creation) or the possibility of releasing the finished product from the mold, in the form of a flowform wheel. The entire design process for both production methods takes place in our studio in Wrocław.
Our significant advantage in the market is working in a 3D environment at every stage of the wheel creation process. We offer our clients 3D visualization services, providing a preview of the final result. On the selected car model, we render the chosen wheel model, even considering the body color. This reduces the risk of the selected wheel not fitting the car or the chosen finish being an ill-conceived idea.
We perform 3D rendering using world-class Lambda Workstation hardware and professional 3D rendering software.
Before handing over the wheel design for production, mechanical properties are thoroughly examined for strength. Virtual FEM (Finite Element Method) simulations conducted using ANSYS software are equivalent to real wheel tests performed for certification. Their main advantage is that we do not need to involve external testing units in this process, thereby reducing the waiting time for results.
A novelty in the design verification process is the use of aerodynamic simulation software to reduce air resistance and noise sources generated in the wheel area.
Drawing on our many years of experience in supplying wheels to hundreds of customers, we have created a unique database with precise dimensions of wheel diameters, widths, and offsets (ET).
Currently, we conduct measurements using a special device of our own design, which virtually eliminates the risk of choosing the wrong fitment.
One of the significant advantages of forged wheels is their mechanical properties resulting from the production process. A wheel produced using this technology begins its life as a prefabricated part, which undergoes heat treatment processes and material densification.
Heat treatment initiates the initial plasticization of the material, which is then compressed. This process removes imperfections that may have occurred during the casting of the prefabricated part. Densified material is much more durable and lighter than regular cast wheels. Wheels produced using the forged technology are cut on advanced CNC machines (3 and 5-axis).
A part of our product range includes wheels produced using the flowform technology. This technology involves stretching a cast prefabricated part on a rotating drum through thermal processing.
The advantages of this technology include increased material rigidity, reduced product weight compared to low-pressure cast wheels, and lower production costs compared to the milling process for forged wheels. Flowforming technology is exclusively used in mass production. Minimum production volumes often range from a few hundred wheel units.
For the production of hardened castings, we use A356 aluminum, and our factory adheres to the ISO standard, verified by TUV Nord inspection units.
The INVENTA system consists of components manufactured using plastic injection molding technology. The design process is divided into a graphic design stage and a CAD design stage.
To produce the arms, it is necessary to create an injection mold (the mother mold) and internal mold inserts that give final shapes to each of the components. It is worth mentioning the ecological aspect related to the production of interchangeable components, as the arms and inserts are made from black recycled PP injection molding granulate, derived from the recycling of clean secondary raw materials. Each arm has rubber protections on the rim, which we also produce from silicone secondary raw materials.
After the design and aerodynamic analysis process, we create prototype versions of new arm and insert designs for Inventa modular wheels using 3D printers.
We test various solutions to achieve a perfect fit for interchangeable components with the base wheel. Upon individual customer requests, we can use our three large PEOPOLY PHENOM XL resin 3D printers to produce fully customized sets of Inventa arms in a short amount of time! We also use 3D printing to tailor wheels to heavily modified vehicles by printing a wheel fragment for physical measurement up to the fender edge.
The entire final production takes place in a carefully selected manufacturing facility in Ningbo, China, after numerous trials. The high quality of our wheels is attributed to a specialized team with years of experience in wheel production, qualified engineers, and, above all, enthusiasts. Our manufacturing facility serves only a few leading brands in the European and American markets, ensuring that the process is meticulously monitored at every stage.
Maintaining constant communication with the factory allows us to have control over every set of wheels produced according to the customer's preferences. The Chinese manufacturing facility complies with ISO9001 production standards and conducts transparent inspections of the chemical composition of T6 aluminum alloys. The quality of wheels produced in our manufacturing facility, thanks to the advanced machinery and technology at our disposal, is a level of quality unmatched by any European factory.