Method for manufacturing a brake disc of a motor vehicle, having a hub or wheel flange, which has a bottom and a surrounding wall spaced apart therefrom, and having a friction ring which has an opening, in which the wall is arranged, wherein - the hub and the friction ring are arranged concentrically, - the wall has an axial hub toothing extending around an outer periphery and having radially outwardly projecting hub teeth, - a hub tooth gap (12, 13) is arranged between adjacent hub teeth in the peripheral direction, - the friction ring has an axial annular toothing extending around an inner periphery which is formed complementarily to the hub toothing and has radially inwardly projecting annular teeth, - wherein an annular tooth gap is arranged in the peripheral direction between adjacent annular teeth, - the hub teeth engage in the annular tooth gaps, - the annular teeth engage in the hub tooth gaps (12, 13), - a flap is formed on at least one first hub tooth gap and projects radially outwards and radially engages over the respective annular tooth engaging with this hub tooth gap at a first axial end (23, 25), - and wherein the flap is held with positive locking in the axial direction, without the formation of a gap, at a recess of the annular tooth, using a slider tool (27; 27') which comprises a main portion (28, 28') and an extended portion (29; 29') arranged on the main portion (28, 28'), wherein an end face of the extended portion (29; 29') has a double chamfer (31, 31'; 32, 32') with a first chamfer angle (α1) and a second chamfer angle (α2), and wherein the hub or wheel flange is inserted into the opening of the friction ring so that a hub tooth gap (12, 13) and an annular tooth as well as an annular tooth gap and a hub tooth are in engagement, wherein the respective flap of the first hub tooth gap is deformed at least in areas by caulking by means of the slider tool (27; 27') radially in the direction of the associated first annular tooth, so that the respective flap, due to the double chamfer (31, 32) of the slider tool (27; 27'), in the axial direction, is pressed into a recess of the associated annular tooth in such a way that the flap is pressed in the axial direction with positive locking, without the formation of a gap, into the recess, wherein the caulking of the flap in the radial direction by means of the slider tool (27, 27') simultaneously also presses the flap in the axial direction with positive locking into a recess of the annular tooth. - the hub and the friction ring are arranged concentrically, - the wall has an axial hub toothing extending around an outer periphery and having radially outwardly projecting hub teeth, - a hub tooth gap (12, 13) is arranged between adjacent hub teeth in the peripheral direction, - the friction ring has an axial annular toothing extending around an inner periphery which is formed complementarily to the hub toothing and has radially inwardly projecting annular teeth, - wherein an annular tooth gap is arranged in the peripheral direction between adjacent annular teeth, - the hub teeth engage in the annular tooth gaps, - the annular teeth engage in the hub tooth gaps (12, 13), - a flap is formed on at least one first hub tooth gap and projects radially outwards and radially engages over the respective annular tooth engaging with this hub tooth gap at a first axial end (23, 25), - and wherein the flap is held with positive locking in the axial direction, without the formation of a gap, at a recess of the annular tooth, using a slider tool (27; 27') which comprises a main portion (28, 28') and an extended portion (29; 29') arranged on the main portion (28, 28'), wherein an end face of the extended portion (29; 29') has a double chamfer (31, 31'; 32, 32') with a first chamfer angle (α1) and a second chamfer angle (α2), and wherein the hub or wheel flange is inserted into the opening of the friction ring so that a hub tooth gap (12, 13) and an annular tooth as well as an annular tooth gap and a hub tooth are in engagement, wherein the respective flap of the first hub tooth gap is deformed at least in areas by caulking by means of the slider tool (27; 27') radially in the direction of the associated first annular tooth, so that the respective flap, due to the double chamfer (31, 32) of the slider tool (27; 27'), in the axial direction, is pressed into a recess of the associated annular tooth in such a way that the flap is pressed in the axial direction with positive locking, without the formation of a gap, into the recess, wherein the caulking of the flap in the radial direction by means of the slider tool (27, 27') simultaneously also presses the flap in the axial direction with positive locking into a recess of the annular tooth.