Amalgamation plates for joining components

An amalgamation plate for joining a first component to a second component, comprising:

• a planar body configured to be placed between the first component and the second component;
• a plurality of first protrusions extending from a first side of the planar body and radially dispersed from an axis of the planar body, wherein the first protrusions are configured to be embedded within one of the first component and the second component;
• a plurality of second protrusions extending from a second side, opposite the first side, of the planar body and radially dispersed from the axis, wherein the second protrusions are configured to be embedded within the other of the first component and the second component via application of force substantially along the axis;
• and
• a plurality of alignment features formed at an exterior edge of the planar body, wherein the alignment features are configured to angularly locate the planar body, the first protrusions, and the second protrusions relative to the axis,
• wherein the first protrusions are radially symmetric about the axis of the planar body and the second protrusions are radially symmetric about the axis of the planar body.