Milling head for removing heat dissipating elements from a tube
AssigneeH&S Toll, Inc.
InventorJ. Randall Hall
Life of this patent
Estimating the term…
Abstract
A milling head for a milling device, particularly a rotary milling device, wherein the milling head is capable of imparting a desired finish on a tube, preferably of a heat exchanger tube. The milling head includes one or more milling elements capable of cutting and/or removing heat dissipating elements connected to an outer surface of the tube. The heat dissipating elements are removed from the tube in a longitudinal direction along the tube length. In one embodiment, the milling head also includes a bevel milling element. Methods for milling a tube having heat dissipating elements are also described.
Claims17
1-33. (canceled)
A method for milling a tube having heat dissipating elements, comprising the steps of:
- providing a milling head comprising a body having a tool mounting portion adapted to be connected to a rotary milling tool, wherein the body has a tube bore adapted to accept a portion of a tube, and one or more milling elements adapted to mill a heat dissipating element on the tube, wherein the one or more milling elements are each connected to a respective milling element support of the body, wherein the one or more milling elements have a lowermost first cutting edge and a second cutting edge meeting at a tip located at a lowermost, radially innermost portion of the milling element, and wherein an angle between (i) a first line extending from the tip to a point on the first cutting edge, and (ii) a second line extending from the tip to a point on the second cutting edge is from about 25° to about 59°, and wherein an angle between the first line and a third line measured through the tip perpendicular to a central rotational axis of the milling head is from about 15° to about 75°;
- connecting the milling head to a rotary milling tool;
- and
- milling heat dissipating elements on an outer surface of the tube with the milling head.
(canceled)
Dependencies are inferred from the claim text.