Method of smoothing a container

A method of smoothing a container, comprising:

• rotating a burnishing tool, comprising a tapered cam shaft, wherein the tapered cam shaft includes camming surfaces having a planar spatial orientation substantially the same as the planar spatial orientation of sides of a pyramid, wherein respective keys respectively extend along respective camming surfaces of the tapered cam shaft, the keys having respective longitudinal axis of extension parallel to the respective camming surfaces, and wherein the camming surfaces are arrayed about a cam shaft axis that is normal to a plane that is parallel to a base of the pyramid;
• a burnishing assembly, the burnishing assembly including:
• segmented burnishing components including respective cammed surfaces positioned on the tapered cam shaft adjacent respective camming surfaces, wherein the segmented burnishing components include respective keyways substantially extending along the respective cammed surfaces to accept the respective keys of the tapered cam shaft, the respective keyways having a longitudinal axis of extension substantially parallel to the longitudinal axis of extension of the respective keys, and wherein the segmented burnishing components have burnishing surfaces;
• and a carrier assembly, the carrier assembly applying force on the segmented burnishing components to hold the segmented burnishing components against the tapered cam shaft;
• wherein the burnishing tool is configured to permit adjustment of the position of the burnishing assembly with respect to the tapered cam shaft in the direction of the cam shaft axis to advance and retract the segmented burnishing components in a radial direction with respect to the cam shaft axis due to movement of the cammed surfaces of the segmented burnishing components along the respective camming surfaces of the cam shaft;
• and
• bringing together the container and the burnishing tool such that the container contacts at least one of the burnishing surfaces of the respective segmented burnishing components;
• and
• burnishing the container via contact between the at least one of the burnishing surfaces and the container while the burnishing tool is rotating.

A method of smoothing a container, comprising:

• bringing together the container and a burnishing tool such that an opening of the container contacts at least one burnishing surface of a burnishing component of the burnishing tool;
• advancing the at least one burnishing surface of the burnishing component in the radial direction with respect to the longitudinal axis of the container as result of pressure on the at least one burnishing surface from the container that drives the burnishing surfaces of the burnishing tool in the direction of the longitudinal axis so that the burnishing component is cammed by a tapered cam shaft of the tool, wherein the tapered cam shaft includes camming surfaces having a planar spatial orientation substantially the same as the planar spatial orientation of sides of a pyramid, wherein respective keys respectively extend along respective camming surfaces of the tapered cam shaft, the keys having respective longitudinal axis of extension parallel to the respective camming surfaces, and wherein the camming surfaces are arrayed about a cam shaft axis that is normal to a plane that is parallel to a base of the pyramid;
• and
• burnishing the container via contact between the at least one of the burnishing surfaces and the container by rotating at least one of the container and the burnishing tool.

A method of smoothing a container, comprising:

• rotating the container about a longitudinal axis of the container;
• bringing together the container and a burnishing tool, comprising a plurality of burnishing surfaces arrayed about a longitudinal axis of the burnishing tool substantially on the same plane, wherein the plurality of burnishing surfaces are respectively separated by sections of the tool that at least one of (i) does not have a burnishing surface and (ii) does not have a burnishing surface on the same plane as the plurality of burnishing surfaces, and wherein the burnishing surfaces are non-movable, such that an opening of the container contacts at least one of the burnishing surfaces;
• and
• burnishing the container via contact between the at least one of the burnishing surfaces and the container while the container is rotating.