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GB1492932A - Methods of and apparatus for trimming sheet material - Google Patents

Methods of and apparatus for trimming sheet material

Info

Publication number
GB1492932A
GB1492932A GB5188373A GB5188373A GB1492932A GB 1492932 A GB1492932 A GB 1492932A GB 5188373 A GB5188373 A GB 5188373A GB 5188373 A GB5188373 A GB 5188373A GB 1492932 A GB1492932 A GB 1492932A
Authority
GB
United Kingdom
Prior art keywords
plane
sheet
edge
nov
methods
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5188373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Company PLC
Original Assignee
General Electric Company PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Company PLC filed Critical General Electric Company PLC
Priority to GB5188373A priority Critical patent/GB1492932A/en
Publication of GB1492932A publication Critical patent/GB1492932A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0011—Working of insulating substrates or insulating layers
    • H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

1492932 Machining edges of planar sheets GENERAL ELECTRIC CO Ltd 8 Nov 1974 [8 Nov 1973] 51883/73 Heading B3K In a method of trimming an edge of a planar sheet of material, e.g. fibre-glass reinforced printed circuit boards, the sheet is located in a plane 1 containing the sheet 2 and rotary cutting means 4, 5 is positioned in a plane 8 at right angles to the plane 1 so as to be at an angle to each other and are inclined up to 1¢ degrees respectively alternately transversely to the plane 8. The edge of the sheet is subsequently machined by passing the sheet along a support in the plane 1 and machining the edge by successive rotary cutters 4 and 5 which, as a result of their angles of inclination remove all burrs from the machined edge.
GB5188373A 1974-11-08 1974-11-08 Methods of and apparatus for trimming sheet material Expired GB1492932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5188373A GB1492932A (en) 1974-11-08 1974-11-08 Methods of and apparatus for trimming sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5188373A GB1492932A (en) 1974-11-08 1974-11-08 Methods of and apparatus for trimming sheet material

Publications (1)

Publication Number Publication Date
GB1492932A true GB1492932A (en) 1977-11-23

Family

ID=10461779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5188373A Expired GB1492932A (en) 1974-11-08 1974-11-08 Methods of and apparatus for trimming sheet material

Country Status (1)

Country Link
GB (1) GB1492932A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3435352A1 (en) * 1983-10-24 1985-05-09 Mitsubishi Jukogyo K.K., Tokio/Tokyo METHOD FOR BENDING A ROLLED TAPE
CN109093001A (en) * 2018-09-12 2018-12-28 广州广汽荻原模具冲压有限公司 Stamping die and its process for stamping with rotation waste knife

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3435352A1 (en) * 1983-10-24 1985-05-09 Mitsubishi Jukogyo K.K., Tokio/Tokyo METHOD FOR BENDING A ROLLED TAPE
US4799836A (en) * 1983-10-24 1989-01-24 Mitsubishi Jukogyo Kabushiki Kaisha Method and apparatus for machining the side edge surface of a web plate
CN109093001A (en) * 2018-09-12 2018-12-28 广州广汽荻原模具冲压有限公司 Stamping die and its process for stamping with rotation waste knife

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee