As to spiral groove grinding, convertionally was based on envelope theory, a formed wheel was needed to be designed and manufactured, and then this wheel was used to grind the specified spiral groove. This paper tried to find the other way to manufacture the specified spiral groove with common disc wheel or dish wheels. A generic model for groove grinding is presented in this paper. With the model, the groove geometries can be calculated under certain grinding parameters. The relations between the grinding parameter and groove geometries were studied numreically. A test was done and the results proved the model is correct. This technology make the spiral groove virtual machining possible. The technology is also a real DFM (Design For Manufacture), because the design process for spiral groove is the process for selecting manufacure parameters.