Coulomb friction damped disc brake rotors

A method for manufacturing a damped article comprising the steps of:

• providing at least one insert;
• and
• forming the article, wherein the article is formed over the at least one insert so that the at least one insert is substantially surrounded and embedded in the article;
• wherein the at least one insert provides at least four interfacial boundaries, the interfacial boundaries providing a mechanically distinguishable surface boundary between two surfaces which are in mutual contact such that a state of Coulomb friction exists therebetween.

A method comprising:

• providing at least one insert;
• and
• casting a disc brake rotor that comprises at least one substantially solid rotor cheek having at least one braking surface over the at least on insert so that the at least one insert is embedded in the rotor cheek and surrounded on at least five sides by the rotor cheek;
• wherein the at least one insert provides at least one interfacial boundary, the interfacial boundary providing a mechanically distinguishable surface boundary between two surfaces which are in mutual contact such that a state of Coulomb friction exists therebetween.

A method for manufacturing a damped article comprising the steps of:

• providing at least one insert;
• and
• forming the article, wherein the article is formed over the at least one insert so that the at least one insert is substantially surrounded and embedded in the article;
• wherein the at least one insert provides at least three interfacial boundaries, the interfacial boundaries providing a mechanically distinguishable surface boundary between two surfaces which are in mutual contact such that a state of Coulomb friction exists therebetween.

A method comprising:

• providing at least one insert;
• and
• casting a disc brake rotor that comprises at least one substantially solid rotor cheek having at least one braking surface over the at least one insert so that the at least one insert is embedded in the rotor cheek and surrounded on at least five sides by the rotor cheek;
• wherein the at least one insert provides at least one interfacial boundary, the interfacial boundary providing a mechanically distinguishable surface boundary between two surfaces which are in mutual contact such that a state of Coulomb friction exists therebetween.

A method comprising:

• providing at least one insert;
• and
• placing the at least one insert in a casting mold half and supporting the at least one insert in the mold half by at least one post or chaplet;
• casting a disc brake rotor that comprises at least one substantially solid rotor cheek having at least one braking surface over the at least one insert, and wherein the insert includes an upper face, a lower face and an inner radial side connecting the upper face and lower face, and so that the at least one insert is embedded in the rotor cheek and surrounded on the upper face, the lower face and the inner radial side by the rotor cheek;
• wherein the at least one insert provides at least one interfacial boundary, the interfacial boundary providing a mechanically distinguishable surface boundary between two surfaces which are in mutual contact such that a state of Coulomb friction exists therebetween.