FLY-CUTTING SYSTEM AND METHOD, AND RELATED TOOLING AND ARTICLES

• US 20100227750A1
• Filed: 05/19/2010
• Published: 09/09/2010
• Est. Priority Date: 08/06/2007
• Status: Abandoned Application

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Ehnes, Dale L., Campbell, Alan B., Burke, James P., Wertz, Daniel S.
• Application Number:
  US12/782,923
• Publication Number:
  US 20100227750A1
• Time in Patent Office: Days
• US Class Current: 492/30
• CPC Class Codes: B23C 2226/125 cubic [CBN]
• CPC Class Codes: B23C 2226/31 Diamond
• CPC Class Codes: B23C 3/30 Milling straight grooves, e.g. keyways
• CPC Class Codes: B23C 5/08 Disc-type cutters
• CPC Class Codes: B23Q 15/007 while the tool acts upon the workpiece
• CPC Class Codes: B29C 2793/0009 Cutting out
• CPC Class Codes: B29C 37/0057 Moulding single grooves or ribs, e.g. tear lines folding lines B29C53/06
• CPC Class Codes: G02B 5/045 Prism arrays
• CPC Class Codes: G02B 5/1852 using mechanical means, e.g. ruling with diamond tool, moulding
• CPC Class Codes: G05B 19/182 characterised by the machine tool function, e.g. thread cutting, cam making, tool direction control G05B19/21 - G05B19/40 take precedence
• CPC Class Codes: G05B 2219/50213 Grooving of different forms or parallel to each other, grooving cycle
• CPC Class Codes: Y10T 408/03 Processes
• CPC Class Codes: Y10T 408/909 Having peripherally spaced cutting edges
• CPC Class Codes: Y10T 409/108745 Cutting action along work axis
• CPC Class Codes: Y10T 409/303752 Process
• CPC Class Codes: Y10T 428/24355 Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
• CPC Class Codes: Y10T 428/24479 including variation in thickness
• CPC Class Codes: Y10T 82/10 Process of turning
• CPC Class Codes: Y10T 82/2529 Revolvable cutter heads
• CPC Class Codes: Y10T 82/2587 Turret type holder [e.g., multiple tools, etc.]

Abstract

Methods of fly-cutting a workpiece are disclosed, and in methods in which the position of a fly-cutting head or its associated cutting element is known as a function of time. Also disclosed are methods of forming features, such as grooves or groove segments, in a workpiece such as a cylindrical roll. The features may be provided according to one or more disclosed patterns. Articles made using tools machined in the manner described are also provided, such as polymeric film or sheeting that exhibit certain beneficial properties.

Claims

1. A cylindrical tool having features or grooves extending from a first end toward a second end, wherein portions of the features or grooves nearest the first end are all relatively sharper than the corresponding portions of the features or grooves near the second end.

3. The cylindrical tool according to either claim 1 or claim 2, wherein the features or grooves extend at an angle relative to a central axis of rotation of the tool.

2. A cylindrical tool having grooves extending from a first end toward a second end, wherein the tool is characterized by the absence of a virtual seam along which a sharp groove is adjacent to a less sharp or dull groove.

4. A cylindrical tool having groove segments formed therein, wherein the groove segments have a beginning and an end, and the groove segments are arranged according to an integer brick pattern, wherein the integer is greater than one.

5. The cylindrical tool of claim 4, wherein the integer is greater than two.