Cam assembly having an internal frame and wear resistant

A cam assembly, comprising a cam body and a frame, wherein:

• the cam body comprises a first cam and a second cam that are oppositely disposed, and a connection body located between the first cam and the second cam, materials of both the first cam and the second cam comprise a ceramic particle reinforced aluminum matrix composite, both the first and second cam have a plurality of alternating concave portions and convex portions;
• and
• the frame comprises a first fastener and a second fastener that are oppositely disposed, and a connector located between the first fastener and the second fastener, the first fastener is embedded into the first cam, the second fastener is embedded into the second cam, extension directions of the first fastener in the first cam comprise at least an axial direction and a circumferential direction, extension directions of the second fastener in the second cam comprise at least the axial direction and the circumferential direction, and the connector is embedded into the connection body,
• wherein the first fastener and the second fastener each comprise a plurality of first fastening bodies and a plurality of second fastening bodies located on the first fastening body, the first fastening bodies extend in the circumferential direction located in the concave portions of the cam body, and the second fastening bodies extend in the axial direction located in the convex portions of the cam body.