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US 5,331,775 AGranted
Honing process with rough honing tool and finish honing tool on same rotating head
AssigneeJason, Inc.
InventorsGuy H. Carmichael, James B. Tyler
Life of this patent
Estimating the term…
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AssigneeJason, Inc.
InventorsGuy H. Carmichael, James B. Tyler
Estimating the term…
A two honing process eliminates the need for subsequent brush honing at another location. The honing process which is accomplished with a single head uses rough honing stones or tools for the initial phase, and finishing tools of tightly compacted abrasive containing plastic monofilaments for the second phase. The phases may be contiguous, slightly spaced, or preferably overlap for up to about one-half of the rough honing phase. When the finishing honing tools are operating alone, the angle of movement of the tools is somewhat askew of the oil retaining ridges and grooves formed by the rough honing operation. With the process, the oil bearing surfaces have improvements in plateau finish and surface topography, avoid abrasive contamination caused by hard finishing tools, and obtain such improvements in a more economic manner.
A method of honing a cylindrical surface having an axis comprising the steps of rough honing the cylindrical surface for a predetermined time by moving a rough honing tool over such surface both rotationally and axially with respect to said surface to impart a cross honing pattern thereto, which pattern comprises crossing helical ridges and grooves forming striations on the cylindrical surface, and after commencement of the rough honing step then finish honing such surface by moving a finishing hone tool over such surface both rotationally and axially with respect to said surface, said finish honing step being completed after the completion of the rough honing step, said finishing hone tool having a working face of tightly compacted tips of abrasive containing plastic monofilaments wherein said rough honing is obtained with a rough honing stone tool, and said finish honing is obtained with a finish honing tool, both tools being mounted in the same rotating head
A method of honing comprising the steps of mounting a rough honing tool set and a finish honing tool set on a single rotatable and axially reciprocable head, each set being mounted for radial extension and retraction independently of the other, the rough honing tool set comprising rigid tools operative to form a cross hatch pattern in the surface being honed, and the finish honing tool set comprising softer tools, the working faces of which are tips of a tightly compacted bundle of plastic monofilaments with abrasive homogeneously embedded therein, extending the rough honing tool set while rotating and reciprocating the head within a cylindrical surface to be honed, to form a cross hatch ridge and groove pattern thereon, and then extending the finish honing tool set to improve the topography of the rough honed surface.
Dependencies are inferred from the claim text.