DE1803890B2 - USE OF A COVER ON STEEL SHEET FOR PUNCHING - Google Patents

USE OF A COVER ON STEEL SHEET FOR PUNCHING

Info

Publication number
DE1803890B2
DE1803890B2 DE19681803890 DE1803890A DE1803890B2 DE 1803890 B2 DE1803890 B2 DE 1803890B2 DE 19681803890 DE19681803890 DE 19681803890 DE 1803890 A DE1803890 A DE 1803890A DE 1803890 B2 DE1803890 B2 DE 1803890B2
Authority
DE
Germany
Prior art keywords
punching
cover
steel sheet
steel
sheet
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.)
Pending
Application number
DE19681803890
Other languages
German (de)
Other versions
DE1803890A1 (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 DE1803890A1 publication Critical patent/DE1803890A1/en
Publication of DE1803890B2 publication Critical patent/DE1803890B2/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/74—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process for obtaining burned-in conversion coatings
    • 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
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Soft Magnetic Materials (AREA)
DE19681803890 1967-10-18 1968-10-18 USE OF A COVER ON STEEL SHEET FOR PUNCHING Pending DE1803890B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6702767 1967-10-18

Publications (2)

Publication Number Publication Date
DE1803890A1 DE1803890A1 (en) 1969-07-17
DE1803890B2 true DE1803890B2 (en) 1971-03-25

Family

ID=13332978

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681803890 Pending DE1803890B2 (en) 1967-10-18 1968-10-18 USE OF A COVER ON STEEL SHEET FOR PUNCHING

Country Status (6)

Country Link
US (1) US3591425A (en)
BE (1) BE722568A (en)
DE (1) DE1803890B2 (en)
FR (1) FR1587993A (en)
GB (1) GB1241686A (en)
SE (1) SE347772B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993510A (en) * 1975-05-21 1976-11-23 The United States Of America As Represented By The Secretary Of The Navy Thixotropic chemical conversion material for corrosion protection of aluminum and aluminum alloys

Also Published As

Publication number Publication date
DE1803890A1 (en) 1969-07-17
BE722568A (en) 1969-04-01
FR1587993A (en) 1970-04-03
SE347772B (en) 1972-08-14
GB1241686A (en) 1971-08-04
US3591425A (en) 1971-07-06

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Legal Events

Date Code Title Description
SH Request for examination between 03.10.1968 and 22.04.1971