Chen shuxun. A New Method of Caleulating the Axial Sections of Grinding Wheels for Relief-Gringing form Milling Cutters[J]. 1994, (2). DOI: 10.16578/j.issn.1004.2539.1994.02.014.
the question of envelope of single parameter curved surface family is changed into the question of the calculation primary function quite ingeniously. And the calculation method conducted from it is very vigorous in methematical concept