Electric machine cooling features

A motor comprising:

• a stator that includes:
• a first member having a first plurality of axially opposing ends including a first front end and a first back end mutually spaced along a first stator center axis, a first outer diameter (OD) side and a first inner diameter (ID) side,
• wherein the first member comprises laminated steel;
• a base layer is disposed directly against the first member and a plurality of cooling features disposed against the OD side of the first member via the base layer, the plurality of cooling features and the base layer being a same material that is different from the first member,
• wherein the plurality of cooling features span between the first plurality of axially opposing ends of the first member, and
• wherein the base layer is configured to reduce an interface contact resistance between the first member and the plurality of cooling features;
• wherein:
• the plurality of cooling features is a plurality of discrete fins having a cross section that is one or more of rectangular, oval, arcuate, and circular,
• the plurality of cooling features are disposed directly against and extend radially outwardly front the base layer;
• a support frame supports the first plurality of axially opposing ends of the first member,
• wherein;
• the support frame comprises a second member surrounding the first member between the first plurality of axially opposing ends,
• the second member is cylindrical and includes a plurality of discrete perforations,
• the plurality of cooling features is additively manufactured directly onto the stator through the respective plurality of discrete perforations, and
• wherein a shape of the plurality of discrete perforations defines the cross sectional of the respective cooling features;
• and
• copper windings are disposed on the first ID side of the first member.