GB1228017A - - Google Patents

Info

Publication number
GB1228017A
GB1228017A GB1228017DA GB1228017A GB 1228017 A GB1228017 A GB 1228017A GB 1228017D A GB1228017D A GB 1228017DA GB 1228017 A GB1228017 A GB 1228017A
Authority
GB
United Kingdom
Prior art keywords
stock
etch
erosion
punching
liquid
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
Other languages
English (en)
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 filed Critical
Publication of GB1228017A publication Critical patent/GB1228017A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/496—Multiperforated metal article making

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
GB1228017D 1967-08-31 1968-07-24 Expired GB1228017A (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66488167A 1967-08-31 1967-08-31

Publications (1)

Publication Number Publication Date
GB1228017A true GB1228017A (enExample) 1971-04-15

Family

ID=24667834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228017D Expired GB1228017A (enExample) 1967-08-31 1968-07-24

Country Status (6)

Country Link
US (1) US3563819A (enExample)
CH (1) CH497249A (enExample)
DE (1) DE1752759B2 (enExample)
FR (1) FR1580590A (enExample)
GB (1) GB1228017A (enExample)
NL (1) NL6812370A (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769110A (en) * 1971-05-14 1973-10-30 Micron Instr Diaphragm for low-pressure transducers
US3991455A (en) * 1972-04-10 1976-11-16 Alfred Bergeron Coupled piston ring method of manufacture
US3932932A (en) * 1974-09-16 1976-01-20 International Telephone And Telegraph Corporation Method of making multilayer printed circuit board
US5004521A (en) * 1988-11-21 1991-04-02 Yamaha Corporation Method of making a lead frame by embossing, grinding and etching
US10189100B2 (en) 2008-07-29 2019-01-29 Pratt & Whitney Canada Corp. Method for wire electro-discharge machining a part
CN110740582A (zh) * 2019-09-10 2020-01-31 黄石市星光电子有限公司 一种新型pcb蚀刻退膜防溶锡液

Also Published As

Publication number Publication date
DE1752759B2 (de) 1973-02-08
US3563819A (en) 1971-02-16
NL6812370A (enExample) 1969-03-04
DE1752759A1 (de) 1971-05-19
CH497249A (de) 1970-10-15
FR1580590A (enExample) 1969-09-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee