Patent ID: 11958098
Assignee: BREMBO S.P.A.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A method for manufacturing a brake disc, said method comprising:
providing at least one sheet of predefined thickness;
blanking a first disc-shaped portion in said at least one sheet, adapted to make a first plate of a ventilated braking band;
blanking a second disc-shaped portion in said at least one sheet, adapted to make a second plate of said ventilated braking band;
blanking a third portion in said at least one sheet, adapted to make at least one ventilation spacer for said ventilated braking band;
drawing said third portion by shaping, along a circular path along said third portion, first and second protrusions, forming opposite first and second recesses, adapted to make ventilation channels for said ventilated braking band;
wherein
a step of stamping and/or drawing bosses in said first and/or second disc-shaped portion and/or ventilation spacer is provided either simultaneously with or subsequently to said blanking steps to form recesses and/or raised portions suited for localized and/or spot welding;
connecting said first disc-shaped portion to said first protrusions by discontinuous weld spots at said bosses; and
connecting said second disc-shaped portion to said second protrusions by discontinuous weld spots at said bosses.